magnetic resonance angiography

Summary

Summary: Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.

Top Publications

  1. pmc Cardiovascular magnetic resonance and single-photon emission computed tomography for diagnosis of coronary heart disease (CE-MARC): a prospective trial
    John P Greenwood
    Multidisciplinary Cardiovascular Research Centre and Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, Leeds, UK
    Lancet 379:453-60. 2012
  2. doi MR-IMPACT: comparison of perfusion-cardiac magnetic resonance with single-photon emission computed tomography for the detection of coronary artery disease in a multicentre, multivendor, randomized trial
    Juerg Schwitter
    Division of Cardiology, University Hospital Zurich, Raemistrasse 100, CH 8091 Zurich, Switzerland
    Eur Heart J 29:480-9. 2008
  3. doi Detection of intracoronary thrombus by magnetic resonance imaging in patients with acute myocardial infarction
    C H P Jansen
    Division of Imaging Sciences, The Rayne Institute, St Thomas Hospital, King s College London, London, UK
    Circulation 124:416-24. 2011
  4. doi Assessment of arterial arrival times derived from multiple inversion time pulsed arterial spin labeling MRI
    Bradley J MacIntosh
    FMRIB Centre, Department of Clinical Neurology, University of Oxford, John Radcliffe Hospital, Oxford, UK
    Magn Reson Med 63:641-7. 2010
  5. doi EuroCMR (European Cardiovascular Magnetic Resonance) registry: results of the German pilot phase
    Oliver Bruder
    Department of Cardiology and Angiology, Elisabeth Hospital, Essen, Germany
    J Am Coll Cardiol 54:1457-66. 2009
  6. ncbi Preliminary experience using the Neuroform stent for the treatment of cerebral aneurysms
    David Fiorella
    Department of Neuroradiology, Barrow Neurological Institute, Phoenix, Arizona 85013, USA
    Neurosurgery 54:6-16; discussion 16-7. 2004
  7. pmc Estimation of labeling efficiency in pseudocontinuous arterial spin labeling
    Sina Aslan
    Advanced Imaging Research Center, UT Southwestern Medical Center, Dallas, Texas 75390, USA
    Magn Reson Med 63:765-71. 2010
  8. doi Comparison of magnetic resonance angiography scans on 1.5, 3, and 7 Tesla units: a quantitative study of 3-dimensional cerebrovasculature
    Wieslaw L Nowinski
    Biomedical Imaging Lab, Agency for Science Technology and Research, Singapore
    J Neuroimaging 23:86-95. 2013
  9. doi Nonenhanced magnetic resonance angiography of the lower extremity vessels at 7 tesla: initial experience
    Anja Fischer
    Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, 45147 Essen, Germany
    Invest Radiol 48:525-34. 2013
  10. doi Magnetic resonance angiography of intracranial and extracranial arteries in patients with spontaneous migraine without aura: a cross-sectional study
    Faisal Mohammad Amin
    Danish Headache Center and Department of Neurology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
    Lancet Neurol 12:454-61. 2013

Detail Information

Publications348 found, 100 shown here

  1. pmc Cardiovascular magnetic resonance and single-photon emission computed tomography for diagnosis of coronary heart disease (CE-MARC): a prospective trial
    John P Greenwood
    Multidisciplinary Cardiovascular Research Centre and Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, Leeds, UK
    Lancet 379:453-60. 2012
    ....
  2. doi MR-IMPACT: comparison of perfusion-cardiac magnetic resonance with single-photon emission computed tomography for the detection of coronary artery disease in a multicentre, multivendor, randomized trial
    Juerg Schwitter
    Division of Cardiology, University Hospital Zurich, Raemistrasse 100, CH 8091 Zurich, Switzerland
    Eur Heart J 29:480-9. 2008
    ..To determine in a multicentre, multivendor trial the diagnostic performance for perfusion-cardiac magnetic resonance (perfusion-CMR) in comparison with coronary X-ray angiography (CXA) and single-photon emission computed tomography (SPECT)...
  3. doi Detection of intracoronary thrombus by magnetic resonance imaging in patients with acute myocardial infarction
    C H P Jansen
    Division of Imaging Sciences, The Rayne Institute, St Thomas Hospital, King s College London, London, UK
    Circulation 124:416-24. 2011
    ..The aim of this study was to investigate the use of non-contrast-enhanced MR for direct thrombus imaging (MRDTI) in patients with acute myocardial infarction...
  4. doi Assessment of arterial arrival times derived from multiple inversion time pulsed arterial spin labeling MRI
    Bradley J MacIntosh
    FMRIB Centre, Department of Clinical Neurology, University of Oxford, John Radcliffe Hospital, Oxford, UK
    Magn Reson Med 63:641-7. 2010
    ..Pulsed arterial spin labeling signals were simulated using an identical sampling scheme as the empiric study and revealed AAT can be estimated robustly when simulated arrival times are well beyond the normal range...
  5. doi EuroCMR (European Cardiovascular Magnetic Resonance) registry: results of the German pilot phase
    Oliver Bruder
    Department of Cardiology and Angiology, Elisabeth Hospital, Essen, Germany
    J Am Coll Cardiol 54:1457-66. 2009
    ..During its German pilot phase, the EuroCMR (European Cardiovascular Magnetic Resonance) registry sought to evaluate indications, image quality, safety, and impact on patient management of routine CMR...
  6. ncbi Preliminary experience using the Neuroform stent for the treatment of cerebral aneurysms
    David Fiorella
    Department of Neuroradiology, Barrow Neurological Institute, Phoenix, Arizona 85013, USA
    Neurosurgery 54:6-16; discussion 16-7. 2004
    ....
  7. pmc Estimation of labeling efficiency in pseudocontinuous arterial spin labeling
    Sina Aslan
    Advanced Imaging Research Center, UT Southwestern Medical Center, Dallas, Texas 75390, USA
    Magn Reson Med 63:765-71. 2010
    ..We propose that the labeling efficiency should be estimated using phase-contrast velocity MRI on a subject-specific basis...
  8. doi Comparison of magnetic resonance angiography scans on 1.5, 3, and 7 Tesla units: a quantitative study of 3-dimensional cerebrovasculature
    Wieslaw L Nowinski
    Biomedical Imaging Lab, Agency for Science Technology and Research, Singapore
    J Neuroimaging 23:86-95. 2013
    ..To compare quality of MR angiography (MRA) acquisitions at various field strengths, we used 3-dimensional (3D) geometric cerebrovascular models extracted from 1.5 T/3 T/7 T scans...
  9. doi Nonenhanced magnetic resonance angiography of the lower extremity vessels at 7 tesla: initial experience
    Anja Fischer
    Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, 45147 Essen, Germany
    Invest Radiol 48:525-34. 2013
    The aim of this study was to investigate the feasibility of nonenhanced magnetic resonance angiography (MRA) of the lower extremities at 7 tesla (T).
  10. doi Magnetic resonance angiography of intracranial and extracranial arteries in patients with spontaneous migraine without aura: a cross-sectional study
    Faisal Mohammad Amin
    Danish Headache Center and Department of Neurology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
    Lancet Neurol 12:454-61. 2013
    ..To test that hypothesis, we aimed to measure extracranial and intracranial arteries during attacks of migraine without aura...
  11. doi Meta-analysis: Accuracy of contrast-enhanced magnetic resonance angiography for assessing steno-occlusions in peripheral arterial disease
    Jan Menke
    University Hospital and Evangelisches Krankenhaus, Goettingen, Germany
    Ann Intern Med 153:325-34. 2010
    Contrast-enhanced magnetic resonance angiography (MRA) is a noninvasive, radiation-free imaging method for studying peripheral arterial disease (PAD) of the lower extremities.
  12. doi Time-of-flight magnetic resonance angiography at 7 Tesla
    Johannes T Heverhagen
    Department of Radiology, The Ohio State University, Columbus, Ohio 43210 1250, USA
    Invest Radiol 43:568-73. 2008
    b>Magnetic resonance angiography (MRA) is noninvasive and does not require the application of high doses of contrast agents, and thus is used in the clinical routine for evaluation of cerebrovascular diseases, eg, aneurysm and arteriovenous ..
  13. ncbi Cardiac catheterisation guided by MRI in children and adults with congenital heart disease
    Reza Razavi
    Cardiac Magnetic Resonance Research Group, Division of Imaging, King s College London, Thomas Guy House, London, UK
    Lancet 362:1877-82. 2003
    ..Drawbacks include poor soft tissue visualisation and exposure to radiation. We describe the first 16 cases of a novel method of cardiac catheterisation guided by MRI with radiographic support...
  14. ncbi Optimal values of flow velocity on transcranial Doppler in grading middle cerebral artery stenosis in comparison with magnetic resonance angiography
    Shan Gao
    Department of Medicine and Therapeutics, Chinese University of Hong Kong, Shatin, Hong Kong, China
    J Neuroimaging 12:213-8. 2002
    To investigate the optimal values of flow velocity on transcranial Doppler (TCD) in grading the severity of middle cerebral artery (MCA) stenosis in comparison with magnetic resonance angiography (MRA).
  15. pmc Evaluation of peripheral arterial disease with nonenhanced quiescent-interval single-shot MR angiography
    Philip A Hodnett
    Department of Radiology, NorthShore University Healthsystem, 2650 Ridge Ave, Evanston, IL 60201, USA
    Radiology 260:282-93. 2011
    ....
  16. doi Study of reproducibility of human arterial plaque reconstruction and its effects on stress analysis based on multispectral in vivo magnetic resonance imaging
    Hao Gao
    Brunel Institute for Bioengineering, Brunel University, Uxbridge, Middlesex, UK
    J Magn Reson Imaging 30:85-93. 2009
    ..To quantify the uncertainties of carotid plaque morphology reconstruction based on patient-specific multispectral in vivo magnetic resonance imaging (MRI) and their impacts on the plaque stress analysis...
  17. ncbi First-pass contrast-enhanced magnetic resonance angiography in humans using ferumoxytol, a novel ultrasmall superparamagnetic iron oxide (USPIO)-based blood pool agent
    Wei Li
    Department of Radiology, Evanston Northwestern Healthcare and Northwestern University s Feinberg School of Medicine, Evanston, Illinois, USA
    J Magn Reson Imaging 21:46-52. 2005
    To evaluate the feasibility of first-pass contrast-enhanced magnetic resonance angiography (MRA) using ferumoxytol in humans.
  18. pmc Time-resolved vessel-selective digital subtraction MR angiography of the cerebral vasculature with arterial spin labeling
    Philip M Robson
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, Ansin 242, Boston, MA 02215, USA
    Radiology 257:507-15. 2010
    ....
  19. doi In vivo cerebromicrovasculatural visualization using 3D DeltaR2-based microscopy of magnetic resonance angiography (3DDeltaR2-mMRA)
    Chien Yuan Lin
    Interdisciplinary MRI MRS Lab, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, ROC
    Neuroimage 45:824-31. 2009
    ..3DDeltaR(2)-mMRA (three-dimensional, steady-state DeltaR(2)-based, and flow-independent microscopic magnetic resonance angiography)...
  20. pmc Joint analysis of structural and perfusion MRI for cognitive assessment and classification of Alzheimer's disease and normal aging
    Duygu Tosun
    Center for Imaging of Neurodegenerative Diseases, Department of Veterans Affairs Medical Center, San Francisco, CA 94121, USA
    Neuroimage 52:186-97. 2010
    ..Compared to reduced rCBF, regional cortical thinning better explained the variability in dementia severity. In conclusion, structural brain alterations compared to physiological variations are the dominant features of MRI in AD...
  21. doi Magnetic resonance angiography (MRA) in renally impaired patients: when and how
    Georg Bongartz
    Department of Radiology, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
    Eur J Radiol 66:213-9. 2008
    b>Magnetic resonance angiography (MRA) and NSF in renally impaired patients have a close relationship due to the frequent coincidence of vascular and renal pathologies, the relatively large amount of contrast media applied and the delayed ..
  22. doi Time-of-flight magnetic resonance angiography at 7 T using venous saturation pulses with reduced flip angles
    Sören Johst
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Invest Radiol 47:445-50. 2012
    The visibility of the vasculature in time-of-flight (TOF) magnetic resonance angiography (MRA) highly profits from increased magnetic field strengths...
  23. doi Arterial spin labeling at 3.0 Tesla in subacute ischemia: comparison to dynamic susceptibility perfusion
    S Huck
    Department of Neuroradiology, Medical Faculty Mannheim, University of Heidelberg, Theodor Kutzer Ufer 1 3, Mannheim, Germany
    Clin Neuroradiol 22:29-37. 2012
    ..0 Tesla, 32-channel head coil) in patients with subacute ischemia...
  24. ncbi Double-oblique free-breathing high resolution three-dimensional coronary magnetic resonance angiography
    M Stuber
    Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
    J Am Coll Cardiol 34:524-31. 1999
    ..The goal of the present study was to develop a strategy for three-dimensional (3D) volume acquisition along the major axes of the coronary arteries...
  25. doi Giant cell arteritis: a review of classification, pathophysiology, geoepidemiology and treatment
    Andrea T Borchers
    Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Davis, CA 95616, USA
    Autoimmun Rev 11:A544-54. 2012
    ..In this review we discuss the pathophysiology of this disease and also the issues of epidemiology and sex differences...
  26. pmc Aneurysm growth occurs at region of low wall shear stress: patient-specific correlation of hemodynamics and growth in a longitudinal study
    Loic Boussel
    Department of Radiology, VA Medical Center, San Francisco, USA 94121, USA
    Stroke 39:2997-3002. 2008
    ..Low wall shear stress (WSS) has been reported to have a negative effect on endothelial cells normal physiology and may be an important contributor to local remodeling of the arterial wall and to aneurysm growth and rupture...
  27. doi Imaging of atherosclerosis: magnetic resonance imaging
    Roberto Corti
    Cardiology, Cardiovascular Center, University Hospital Zurich, Ramistrasse 100, CH 8091 Zurich, Switzerland
    Eur Heart J 32:1709-19b. 2011
    ..Such strategy is currently under clinical investigation...
  28. doi Carotid artery stents: in vitro comparison of different stent designs and sizes using CT angiography and contrast-enhanced MR angiography at 1.5T and 3T
    M Lettau
    Department of Neurology, University of Heidelberg Medical Center, Heidelberg, Germany
    AJNR Am J Neuroradiol 30:1993-7. 2009
    ..5T, and CE-MRA at 3T for the visualization of carotid artery stents and to define the best noninvasive imaging technique as an alternative to conventional angiography for each stent...
  29. ncbi Quantification and detectability of in-stent stenosis with CT angiography and MR angiography in arterial stents in vitro
    Melanie B Blum
    Division of Angiography and Interventional Radiology, Department of Radiology, Medical University of Vienna, Wahringer Gurtel 18 20, 1090 Vienna, Austria
    AJR Am J Roentgenol 189:1238-42. 2007
    ..The purpose of this study was to compare CT angiography (CTA) and MR angiography (MRA) for the detectability of 75% and 95% stenoses in phantoms using six different stents...
  30. doi Magnetic resonance-derived 3-dimensional blood flow patterns in the main pulmonary artery as a marker of pulmonary hypertension and a measure of elevated mean pulmonary arterial pressure
    Gert Reiter
    Siemens Medical Solutions, Graz, Austria
    Circ Cardiovasc Imaging 1:23-30. 2008
    ..Such pathological altered pressures in the pulmonary vascular system should lead to changes in blood flow patterns in the main pulmonary artery...
  31. doi Magnetic resonance angiography in reversible cerebral vasoconstriction syndromes
    Shih Pin Chen
    Institute of Clinical Medicine, Fu Jen Catholic University, Taipei, Taiwan
    Ann Neurol 67:648-56. 2010
    To investigate the evolution and clinical significance of vasoconstriction on magnetic resonance angiography (MRA) in patients with reversible cerebral vasoconstriction syndromes (RCVS).
  32. doi Endovascular coil embolization of very small intracranial aneurysms
    Jin Ho Hwang
    Department of Radiology, Konkuk University Medical Center, 4 12 Hwayang dong, Gwangjin gu, Seoul, 143 729, South Korea
    Neuroradiology 53:349-57. 2011
    ..We report clinical and angiographic results of coil embolization of these aneurysms...
  33. ncbi Single breath-hold whole-heart MRA using variable-density spirals at 3T
    Juan M Santos
    Magnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA
    Magn Reson Med 55:371-9. 2006
    ..This is combined with real-time localization and a real-time prospective shim correction. Images are reconstructed with the use of gridding, and advanced techniques are used to reduce aliasing artifacts...
  34. doi MRI and FDG-PET in the assessment of inflammatory aortic arch syndrome in complicated courses of giant cell arteritis
    M Both
    University Hospital Schleswig Holstein, Campus Kiel, Department of Diagnostic Radiology, Arnold Heller Strasse 9, 24105 Kiel, Germany
    Ann Rheum Dis 67:1030-3. 2008
    ..To evaluate the use of MRI and FDG-PET for the diagnosis and measurement of disease activity of inflammatory aortic arch syndrome in patients with complicated giant cell arteritis...
  35. ncbi Whole-body 3D MR angiography of patients with peripheral arterial occlusive disease
    Christoph U Herborn
    Department of Diagnostic and Interventional Radiology, University Hospital Essen, Hufelandstrasse 55, Essen 45122, Germany
    AJR Am J Roentgenol 182:1427-34. 2004
    ..Separate blinded data analyses were performed by two radiologists. Additional vascular disease detected by whole-body MR angiography was subsequently assessed on sonography, dedicated MR angiography, or both...
  36. ncbi Improved coronary artery definition with T2-weighted, free-breathing, three-dimensional coronary MRA
    R M Botnar
    Department of Medicine, Cardiovascular Division, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Circulation 99:3139-48. 1999
    Three-dimensional (3D) navigator-gated and prospectively corrected free-breathing coronary magnetic resonance angiography (MRA) allows for submillimeter image resolution but suffers from poor contrast between coronary blood and myocardium...
  37. doi Evidence-based guideline update: determining brain death in adults: report of the Quality Standards Subcommittee of the American Academy of Neurology
    Eelco F M Wijdicks
    Division of Critical Care Neurology, Mayo Clinic, Rochester, MN, USA
    Neurology 74:1911-8. 2010
    ..that falsely suggest retained brain function sometimes observed in brain death? What is the comparative safety of techniques for determining apnea? Are there new ancillary tests that accurately identify patients with brain death?..
  38. doi Validation of magnetic resonance myocardial perfusion imaging with fractional flow reserve for the detection of significant coronary heart disease
    Stuart Watkins
    Golden Jubilee National Hospital, Department of Cardiology, Beardmore St, Clydebank, Glasgow, G81 4HX
    Circulation 120:2207-13. 2009
    ..Pressure wire-derived fractional flow reserve (FFR) values <0.75 correlate closely with objective evidence of reversible ischemia. Accordingly, we have compared MRMPI with FFR...
  39. ncbi Atherosclerotic disease: whole-body cardiovascular imaging with MR system with 32 receiver channels and total-body surface coil technology--initial clinical results
    Michael Fenchel
    Department of Diagnostic Radiology, Eberhard Karls University, Hoppe Seyler Strasse 3, 72076 Tuebingen, Germany
    Radiology 238:280-91. 2006
    ..For patients suspected of having systemic atherosclerotic disease, comprehensive risk assessment is feasible within 30 minutes...
  40. ncbi Hyperacute ischemic stroke: middle cerebral artery susceptibility sign at echo-planar gradient-echo MR imaging
    Alex Rovira
    Department of Radiology, Magnetic Resonance Unit, Hospital Universitari Vall d Hebron, Passeig Vall d Hebron 119 129, 08035 Barcelona, Spain
    Radiology 232:466-73. 2004
    ..To evaluate the accuracy of echo-planar T2*-weighted magnetic resonance (MR) sequences in detection of acute middle cerebral artery (MCA) or internal carotid artery (ICA) thrombotic occlusion...
  41. pmc Detection of neovessels in atherosclerotic plaques of rabbits using dynamic contrast enhanced MRI and 18F-FDG PET
    Claudia Calcagno
    FAHA, FACC, Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L Levy Place, Box 1234, New York, NY 10029, USA
    Arterioscler Thromb Vasc Biol 28:1311-7. 2008
    ..Our aim was to test 2 techniques, black blood dynamic contrast enhanced MRI (DCE-MRI) and 18-fluorine-fluorodeoxyglucose (18F-FDG) PET, to quantify inflammation expressed as plaque neovessels content in a rabbit model of atherosclerosis...
  42. doi MR angiography of the cerebral perforating arteries with magnetization prepared anatomical reference at 7 T: comparison with time-of-flight
    Jaco J M Zwanenburg
    Image Sciences Institute, University Medical Center, Utrecht, Netherlands
    J Magn Reson Imaging 28:1519-26. 2008
    ..To develop a magnetic resonance imaging (MRI) protocol that visualizes both the perforating arteries and the related anatomy in a single acquisition at 7 T...
  43. doi Utility of high resolution MR imaging to assess carotid plaque morphology: a comparison of acute symptomatic, recently symptomatic and asymptomatic patients with carotid artery disease
    Umar Sadat
    University Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
    Atherosclerosis 207:434-9. 2009
    ....
  44. ncbi Management of intracranial vertebral artery dissections initially presenting without subarachnoid hemorrhage
    Isao Naito
    Department of Neurosurgery, Geriatrics Research Institute and Hospital, Maebashi, Japan
    Neurosurgery 51:930-7; discussion 937-8. 2002
    ..The clinical and angiographic follow-up results for intracranial vertebral artery (VA) dissections that initially presented without subarachnoid hemorrhage (SAH) were retrospectively investigated, to clarify their management...
  45. ncbi Accuracy of dynamic perfusion CT with deconvolution in detecting acute hemispheric stroke
    Max Wintermark
    Department of Radiology, Neuroradiology Section, University of California, San Francisco, USA
    AJNR Am J Neuroradiol 26:104-12. 2005
    ..We determined the accuracy of these maps in patients with suspected acute hemispheric stroke...
  46. doi Intracranial aneurysms treated with coil placement: test characteristics of follow-up MR angiography--multicenter study
    Joanna D Schaafsma
    Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
    Radiology 256:209-18. 2010
    ..To determine the test characteristics of magnetic resonance (MR) angiography in the assessment of occlusion of aneurysms treated with coil placement...
  47. ncbi Epidemiology, associated factors, and prognostic outcomes of renal artery stenosis in chronic heart failure assessed by magnetic resonance angiography
    Ramesh de Silva
    Academic Cardiology, University of Hull, Castle Hill Hospital, Cottingham, East Yorkshire, United Kingdom
    Am J Cardiol 100:273-9. 2007
    ..A stenosis of >50% using magnetic resonance angiography of the renal arteries was used to define significant RAS...
  48. pmc Differentiation of recurrent glioblastoma multiforme from radiation necrosis after external beam radiation therapy with dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging
    Ramon F Barajas
    Department of Radiology, Neuroradiology Section, University of California, San Francisco, CA 94143, USA
    Radiology 253:486-96. 2009
    ....
  49. ncbi Magnetic resonance imaging permits in vivo monitoring of catheter-based vascular gene delivery
    X Yang
    Department of Radiology, Johns Hopkins Hospital, Baltimore, MD, USA
    Circulation 104:1588-90. 2001
    ..CONCLUSIONS: We present a technical development that uses high-resolution MR imaging as an in vivo imaging tool to monitor catheter-based vascular gene delivery...
  50. doi Angiographic pattern of symptomatic severe M1 stenosis: comparison with presenting symptoms, infarct patterns, perfusion status, and outcome after recanalization
    Jin Woo Choi
    Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Republic of Korea
    Cerebrovasc Dis 29:297-303. 2010
    ..We have assessed the relationship between these angiographic patterns and patient presenting symptoms, infarct patterns, perfusion status and outcome after recanalization...
  51. ncbi Dynamic contrast-enhanced MRI of muscle perfusion combined with MR angiography of collateral artery growth in a femoral artery ligation model
    Quido G de Lussanet
    Department of Radiology, Maastricht University Hospital, Maastricht, The Netherlands
    NMR Biomed 20:717-25. 2007
    ..0 on day 21 in the ligated limb only. Combined DCE-MRI and MRA allows non-invasive serial monitoring of changes in muscle blood flow and growth of sub-millimeter sized collateral arteries in a rabbit femoral artery ligation model...
  52. pmc Cardiovascular magnetic resonance at 3.0 T: current state of the art
    John N Oshinski
    Department of Radiology, Emory University School of Medicine, 1364 Clifton Road, Room AG34, Atlanta, GA 30322, USA
    J Cardiovasc Magn Reson 12:55. 2010
    ..Specifically, we will review cine imaging, MR coronary angiography, myocardial perfusion imaging, late gadolinium enhancement, and vascular wall imaging...
  53. ncbi Role of magnetic resonance angiography in the diagnosis of major aortopulmonary collateral arteries and partial anomalous pulmonary venous drainage
    Sanjay K Prasad
    Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, London, United Kingdom
    Circulation 109:207-14. 2004
    ..Three-dimensional contrast-enhanced magnetic resonance angiography (MRA) provides a minimally invasive technique to allow detailed studies in a single breath-hold.
  54. ncbi Magnetic resonance imaging profiles predict clinical response to early reperfusion: the diffusion and perfusion imaging evaluation for understanding stroke evolution (DEFUSE) study
    Gregory W Albers
    Department of Neurology and Neurological Sciences and the Stanford Stroke Center, Stanford University Medical Center, Stanford, CA 94304, USA
    Ann Neurol 60:508-17. 2006
    ..To determine whether prespecified baseline magnetic resonance imaging (MRI) profiles can identify stroke patients who have a robust clinical response after early reperfusion when treated 3 to 6 hours after symptom onset...
  55. ncbi Time-of-flight MR angiography targeted to coiled intracranial aneurysms is more sensitive to residual flow than is digital subtraction angiography
    Naoaki Yamada
    Department of Radiology and Nuclear Medicine, National Cardiovascular Center, Osaka, Japan
    AJNR Am J Neuroradiol 25:1154-7. 2004
    ..The purpose of this study was to establish a noninvasive technique to visualize residual flow in coiled aneurysms...
  56. ncbi In vitro evaluation of intravascular stent artifacts in three-dimensional MR angiography
    D Maintz
    Department of Diagnostic Radiology, University of Cologne, School of Medicine, Cologne, Germany
    Invest Radiol 36:218-24. 2001
    ..To evaluate the intraluminal signal characteristics of various stents and stent-grafts in contrast-enhanced three-dimensional MR angiography (3D MRA) in vitro...
  57. ncbi Quantitative evaluation of susceptibility and shielding effects of nitinol, platinum, cobalt-alloy, and stainless steel stents
    Yi Wang
    Department of Radiology, Weill Medical College of Cornell University, New York, New York, USA
    Magn Reson Med 49:972-6. 2003
    ..All stents have substantial shielding effects, which vary with composition, geometry, and orientation. Large platinum stents may have the smallest artifacts and are the best suited for postinterventional MR imaging...
  58. ncbi Non-invasive measurement of perfusion: a critical review of arterial spin labelling techniques
    E T Petersen
    Department of Neuroradiology, National Neuroscience Institute, Singapore
    Br J Radiol 79:688-701. 2006
    ..In particular, the perfusion quantification methods, including the problems and pitfalls involved, are thoroughly discussed in this article. Finally, a brief summary of applications is provided...
  59. pmc Multimodality imaging of atherosclerotic plaque activity and composition using FDG-PET/CT and MRI in carotid and femoral arteries
    Stephane S Silvera
    Sinai Translational and Molecular Imaging Institute and Imaging Science Laboratories, Mount Sinai School of Medicine, One Gustave L Levy Place, New York, NY 10029, USA
    Atherosclerosis 207:139-43. 2009
    ....
  60. ncbi MR imaging of vascular stents: effects of susceptibility, flow, and radiofrequency eddy currents
    L W Bartels
    Department of Radiology, Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan, The Netherlands
    J Vasc Interv Radiol 12:365-71. 2001
    ..The purpose of this in vitro study was to examine the various sources of artifacts in magnetic resonance (MR) imaging and angiography of vascular stents...
  61. ncbi Quantification of pain-induced changes in cerebral blood flow by perfusion MRI
    D G Owen
    Lawson Health Research Institute, St Joseph s Health Care London, 268 Grosvenor Street, London, Ont, Canada N6A 4V2
    Pain 136:85-96. 2008
    ..97ml/100g/min in ipsilateral thalamus to 4.91ml/100g/min in contralateral insula. The average resting global CBF was 54+/-9.7ml/100g/min, and there was no change in global CBF due to the noxious thermal stimulus...
  62. doi Role of imaging studies in the diagnosis and follow-up of large-vessel vasculitis: an update
    N Pipitone
    Rheumatology Department, Arcispedale Santa Maria Nuova, Viale Risorgimento, 80, I 42100 Reggio Emilia, Italy
    Rheumatology (Oxford) 47:403-8. 2008
    ..Imaging procedures can also be used to monitor the disease course. However, imaging signs of inflammation may sometimes persist despite clinical remission and, conversely, seemingly unaffected vessels may develop alterations later on...
  63. ncbi Comparative overview of brain perfusion imaging techniques
    Max Wintermark
    Department of Radiology, University of California, 505 Parnassus Ave, San Francisco, CA 94143 0628, USA
    Stroke 36:e83-99. 2005
    ..All of them are used to characterize the same types of pathological conditions. However, each technique has its own advantages and drawbacks...
  64. pmc Quiescent-interval single-shot unenhanced magnetic resonance angiography of peripheral vascular disease: Technical considerations and clinical feasibility
    Robert R Edelman
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois, USA
    Magn Reson Med 63:951-8. 2010
    ..Moreover, the technique provides consistent image quality in the pelvic region despite the presence of respiratory and bowel motion...
  65. pmc Vessel tortuosity and brain tumor malignancy: a blinded study
    Elizabeth Bullitt
    Department of Surgery, University of North Carolina, Chapel Hill, CASILab, 349 Wing C, CB 7062, Chapel Hill, NC 27599, USA
    Acad Radiol 12:1232-40. 2005
    ..The ability to detect and quantify tortuosity abnormalities on high-resolution magnetic resonance angiography (MRA) images offers a new approach to the noninvasive diagnosis of malignancy...
  66. ncbi Three-dimensional anatomy of the left atrium by magnetic resonance angiography: implications for catheter ablation for atrial fibrillation
    Moussa Mansour
    Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA
    J Cardiovasc Electrophysiol 17:719-23. 2006
    ..A detailed anatomical characterization of these regions has not been previously reported...
  67. doi Separation of macrovascular signal in multi-inversion time arterial spin labelling MRI
    Michael A Chappell
    Centre for Functional MRI of the Brain, University of Oxford, John Radcliffe Hospital, Headington, Oxford, UK
    Magn Reson Med 63:1357-65. 2010
    ....
  68. ncbi Quantitative assessment of ventricular function using three-dimensional SSFP magnetic resonance angiography
    Gerald F Greil
    Department of Pediatric Cardiology, Children s Hospital, University of Tuebingen, Tuebingen, Germany
    J Magn Reson Imaging 26:288-95. 2007
    To evaluate three-dimensional (3D), free-breathing, steady-state free precession (SSFP) magnetic resonance angiography (MRA) for volumetric assessment of ventricular function.
  69. ncbi Usefulness of magnetic resonance angiography in the evaluation of complex congenital heart disease in newborns and infants
    Ashwin Prakash
    Division of Pediatric Cardiology, Columbia University College of Physicians and Surgeons, New York, New York, USA
    Am J Cardiol 100:715-21. 2007
    This study evaluated the quality of the visualization of extracardiac thoracic vessels by magnetic resonance angiography (MRA) in young infants with congenital heart disease...
  70. doi A total atherosclerotic score for whole-body MRA and its relation to traditional cardiovascular risk factors
    T Hansen
    Institution of ORKI, Department of Radiology, Uppsala University Hospital, Sjukhusvägen 1 A, S 753 09 Uppsala, Sweden
    Eur Radiol 18:1174-80. 2008
    The aim of this study was to create a scoring system for whole-body magnetic resonance angiography (WBMRA) that allows estimation of atherosclerotic induced luminal narrowing, and determine whether the traditional cardiovascular (CV) risk ..
  71. ncbi Comparison of intracranial 3D-ToF-MRA with and without parallel acquisition techniques at 1.5T and 3.0T: preliminary results
    J Gaa
    Institute of Neuroradiology, University of Frankfurt, Germany
    Acta Radiol 45:327-32. 2004
    To evaluate the performance of four 3D-ToF magnetic resonance angiography (MRA) sequences with and without integrated parallel acquisition techniques (iPAT) at 1.5T and 3.0T in imaging intracranial vessels.
  72. ncbi Weighted local variance-based edge detection and its application to vascular segmentation in magnetic resonance angiography
    Max W K Law
    Lo Kwee Seong Medical Image Analysis Laboratory, Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
    IEEE Trans Med Imaging 26:1224-41. 2007
    ..detection of vessel boundaries is particularly important for a precise extraction of vasculatures in magnetic resonance angiography (MRA)...
  73. pmc 3D radial sampling and 3D affine transform-based respiratory motion correction technique for free-breathing whole-heart coronary MRA with 100% imaging efficiency
    Himanshu Bhat
    Department of Radiology, Northwestern University, Chicago, IL, USA
    Magn Reson Med 65:1269-77. 2011
    ..tracking approach currently used for respiratory motion compensation during free-breathing coronary magnetic resonance angiography (MRA) has low imaging efficiency (typically 30-50%), resulting in long imaging times...
  74. doi Nonenhanced MR angiography
    Mitsue Miyazaki
    Department of MRI, Toshiba Medical Research Institute USA, 990 Corporate Woods Pkwy, Vernon Hills, IL 60061, USA
    Radiology 248:20-43. 2008
    ..Developments on the horizon include techniques that provide time-resolved imaging for assessment of flow dynamics by using nonenhanced approaches...
  75. ncbi CURVES: curve evolution for vessel segmentation
    L M Lorigo
    Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA
    Med Image Anal 5:195-206. 2001
    ..structures in three-dimensional imagery, with the primary application of segmenting vasculature in magnetic resonance angiography (MRA) images...
  76. doi Gadofosveset trisodium-enhanced magnetic resonance angiography of the left atrium--a feasibility study
    Moritz Wagner
    Department of Radiology, Charite University Hospital, Berlin, Germany
    Eur J Radiol 75:166-72. 2010
    ..The aim of the study was to evaluate the feasibility of contrast-enhanced high-resolution magnetic resonance angiography (MRA) of the left atrium using the blood-pool contrast agent gadofosveset trisodium in comparison to ..
  77. doi Usefulness of contrast-enhanced magnetic resonance angiography for follow-up of coil embolization with the enterprise stent for cerebral aneurysms
    Katsutoshi Takayama
    Department of Radiology and Interventional Neuroradiology, Ishinkai Yao General Hospital, Osaka, Japan
    J Comput Assist Tomogr 35:568-72. 2011
    The aim of this study was to determine the feasibility and usefulness of contrast-enhanced magnetic resonance angiography (CE-MRA) and 3-dimensional (3D) time-of-flight (TOF) MRA for follow-up of intracranial aneurysms treated using the ..
  78. doi Three-dimensional imaging of pulmonary veins by a novel steady-state free-precession magnetic resonance angiography technique without the use of intravenous contrast agent: initial experience
    Mayil S Krishnam
    Department of Radiological Sciences, UCLA Medical Center, Los Angeles, CA 90095 7206, USA
    Invest Radiol 44:447-53. 2009
    To evaluate the feasibility of 3-dimensional (3D) steady-state free-precession (SSFP) magnetic resonance angiography (MRA) using nonselective radiofrequency excitation for imaging of pulmonary veins (PVs) without intravenous gadolinium ..
  79. doi Clinical applications of susceptibility weighted imaging in patients with major stroke
    Poyin Huang
    Department of Neurology, Kaohsiung Medical University, Kaohsiung, Taiwan
    J Neurol 259:1426-32. 2012
    ..Patients with SVS were also more likely to develop later brain edema. Including SWI in routine MR protocols for major acute ischemic stroke would be worthwhile...
  80. pmc Magnetic resonance angiography in extracranial giant cell arteritis
    Marcel Koenigkam-Santos
    Department of Radiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
    J Clin Rheumatol 17:306-10. 2011
    ..Noninvasive diagnosis of giant cell arteritis (GCA) remains challenging, particularly with regard to evaluation of extracranial arterial disease...
  81. doi Time-of-flight magnetic resonance angiography of the canine brain at 3.0 Tesla and 7.0 Tesla
    Paula Martin-Vaquero
    Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
    Am J Vet Res 72:350-6. 2011
    To evaluate the ability of 2-D time-of-flight (ToF) magnetic resonance angiography (MRA) to depict intracranial vasculature and compare results obtained with 3.0- and 7.0-T scanners in dogs.
  82. doi Total atherosclerotic burden by whole body magnetic resonance angiography predicts major adverse cardiovascular events
    Christina Lundberg
    Department of Radiology, Uppsala University Hospital, 75185 Uppsala, Sweden
    Atherosclerosis 228:148-52. 2013
    ..Score (TAS), a measurement of the overall atherosclerotic burden of the arterial tree by whole body magnetic resonance angiography (WBMRA), and the risk of major adverse cardiovascular events (MACE), defined as cardiac death, ..
  83. doi Phase contrast and time-of-flight magnetic resonance angiography of the intracerebral arteries at 1.5, 3 and 7 T
    Anna C Stamm
    Department of Diagnostic Radiology, Philipps University, Marburg, Germany
    Magn Reson Imaging 31:545-9. 2013
    ..The purpose of this study was to compare the ability of ToF and PC MRA to visualize the cerebral arteries at increasing field strengths...
  84. pmc Time-resolved 3D contrast-enhanced MRA on 3.0T: a non-invasive follow-up technique after stent-assisted coil embolization of the intracranial aneurysm
    Jin Woo Choi
    Department of Radiology, Konkuk University School of Medicine, Seoul 143 729, Korea
    Korean J Radiol 12:662-70. 2011
    To evaluate the usefulness of time-resolved contrast enhanced magnetic resonance angiography (4D MRA) after stent-assisted coil embolization by comparing it with time of flight (TOF)-MRA.
  85. doi Whole-heart coronary MR angiography with 2D self-navigated image reconstruction
    Markus Henningsson
    Division of Imaging Sciences and Biomedical Engineering, King s College London, London, United Kingdom
    Magn Reson Med 67:437-45. 2012
    ..The visualized vessel length of the right coronary artery could be significantly improved with a multiple targeted 2D self-navigation approach, compared to 2DSN method...
  86. pmc A fast analysis method for non-invasive imaging of blood flow in individual cerebral arteries using vessel-encoded arterial spin labelling angiography
    Michael A Chappell
    Institute of Biomedical Engineering, University of Oxford, Old Road Campus, Headington, Oxford OX3 7DQ, UK
    Med Image Anal 16:831-9. 2012
    ..The final algorithm is demonstrated on in vivo data with analysis on a time scale of the order of 10min, from both a healthy control and a patient with a vertebro-basilar occlusion...
  87. doi A kinetic model for vessel-encoded dynamic angiography with arterial spin labeling
    Thomas W Okell
    Centre for Functional Magnetic Resonance Imaging of the Brain, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
    Magn Reson Med 68:969-79. 2012
    ..Relative volume flow rates in downstream vessels are also quantified, showing the relative importance of each feeding artery. This framework is likely to be of use in assessing collateral blood flow in patient groups...
  88. doi Aortopulmonary collaterals after bidirectional cavopulmonary connection or Fontan completion: quantification with MRI
    Lars Grosse-Wortmann
    The Labatt Family Heart Center and the Department of Diagnostic Imaging, The Hospital for Sick Children, The University of Toronto, Toronto, Ontario, Canada
    Circ Cardiovasc Imaging 2:219-25. 2009
    ..We aimed to quantify APC flow after bidirectional cavopulmonary connections and Fontan completions, using phase-contrast MRI, and to identify risk factors for the development of APCs...
  89. doi Respiratory self-navigation for whole-heart bright-blood coronary MRI: methods for robust isolation and automatic segmentation of the blood pool
    Davide Piccini
    Pattern Recognition Lab, Department of Computer Science, Friedrich Alexander University of Erlangen Nuremberg, Erlangen, Germany
    Magn Reson Med 68:571-9. 2012
    ..Self-navigation was successful in all cases and the acquisition time was reduced up to 63%. Equivalent or slightly superior image quality, vessel length, and sharpness were achieved...
  90. pmc Quantitative cerebral blood flow in dynamic susceptibility contrast MRI using total cerebral flow from phase contrast magnetic resonance angiography
    David Bonekamp
    Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland 21287, United States
    Magn Reson Med 66:57-66. 2011
    ..e., whole brain) cerebral blood flow in individual subjects using phase contrast magnetic resonance angiography. The method was applied to data from 11 patients with intracranial pathology...
  91. doi Comparative velocity investigations in cerebral arteries and aneurysms: 3D phase-contrast MR angiography, laser Doppler velocimetry and computational fluid dynamics
    Dorothea I Hollnagel
    Institute of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
    NMR Biomed 22:795-808. 2009
    ..Velocity mapping with phase-contrast magnetic resonance angiography (PC-MRA) is a non-invasive method for performing in vivo measurements on blood velocity...
  92. doi Myocardial perfusion imaging using adenosine-induced stress dual-energy computed tomography of the heart: comparison with cardiac magnetic resonance imaging and conventional coronary angiography
    Sung Min Ko
    Department of Radiology, Konkuk University Hospital, Konkuk University School of Medicine, 4 12 Hwayang dong, Gwangjin gu, Seoul, 143 729, Korea
    Eur Radiol 21:26-35. 2011
    ....
  93. doi Peripheral arterial occlusive disease: evaluation of a high spatial and temporal resolution 3-T MR protocol with a low total dose of gadolinium versus conventional angiography
    Ulrike I Attenberger
    Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Theodor Kutzer Ufer 1 3, 68167 Mannheim, Germany
    Radiology 257:879-87. 2010
    ..1 mmol per kilogram of body weight...
  94. doi Myocardial blood flow quantification from MRI by deconvolution using an exponential approximation basis
    Gilion Hautvast
    Imaging Systems MR, Philips Healthcare, Best 5684 PC, Netherlands
    IEEE Trans Biomed Eng 59:2060-7. 2012
    ..Together with automated respiratory motion correction myocardial contour delineation, the exponential deconvolution enables efficient and reproducible quantification of myocardial blood flow in clinical routine...
  95. pmc Three-dimensional T2-weighted MRI of the human femoral arterial vessel wall at 3.0 Tesla
    Zhuoli Zhang
    Department of Radiology, Northwestern University, Chicago, IL, USA
    Invest Radiol 44:619-26. 2009
    ..To evaluate the potential use of a novel 3D turbo spin-echo (TSE) T2-weighted (T2w) technique for assessing the vessel wall in the superficial femoral artery at 3.0 T...
  96. pmc MR angiography, MR imaging and proton MR spectroscopy in-vivo assessment of skeletal muscle ischemia in diabetic rats
    Stefano Delli Pizzi
    Department of Neuroscience and Imaging, Institute for Advanced Biomedical Technologies, G d Annunzio University Foundation, Chieti, Italy
    PLoS ONE 7:e44752. 2012
    ..Combined MR techniques can be used to demonstrate the presence of structural and metabolic changes produced by iliac-femoral artery occlusion in rat diabetic model of limb ischemia...
  97. ncbi Submillimeter three-dimensional coronary MR angiography with real-time navigator correction: comparison of navigator locations
    M Stuber
    Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, MA, USA
    Radiology 212:579-87. 1999
    Three-dimensional free-breathing coronary magnetic resonance angiography was performed in eight healthy volunteers with use of real-time navigator technology...
  98. ncbi Novel magnetic resonance angiography stage grading for moyamoya disease
    Kiyohiro Houkin
    Department of Neurosurgery, Sapporo Medical University, Japan
    Cerebrovasc Dis 20:347-54. 2005
    b>Magnetic resonance angiography (MRA) has been acknowledged as a noninvasive diagnostic modality for moyamoya disease. However, in terms of staging of moyamoya disease, conventional angiography is still the gold standard...
  99. pmc Improved renal perfusion measurement with a dual navigator-gated Q2TIPS fair technique
    Ruitian Song
    Department of Radiological Sciences, Division of Translational Imaging Research, St Jude Children s Research Hospital, Memphis, Tennessee 38105 3678, USA
    Magn Reson Med 64:1352-9. 2010
    ..The proposed technique may prove most beneficial for noncontrast-based renal perfusion quantification in young children and patients who may have difficulty holding their breath for prolonged periods or are sedated/anesthetized...
  100. doi Simultaneous MR arteriography and venography with blood pool contrast agent detects deep venous thrombosis in suspected arterial disease
    Dariusch R Hadizadeh
    Department of Radiology, University of Bonn, Germany
    AJR Am J Roentgenol 198:1188-95. 2012
    ....
  101. ncbi Whole-heart coronary magnetic resonance angiography with MS-325 (Gadofosveset)
    Sebastian Kelle
    Department of Internal Medicine Cardiology, Deutsches Herzzentrum Berlin, Germany
    Med Sci Monit 13:CR469-474. 2007
    ..The aim of the study was to evaluate the feasibility of whole-heart contrast-enhanced MRCA using the intravascular contrast agent gadofosveset, formerly known as MS-325...

Research Grants65

  1. Changes in neural response to eating after bariatric surgery: MRI results
    Thomas A Wadden; Fiscal Year: 2013
    ..In addition, we will serially measure postprandial changes in appetite-regulating hormones and examine the relationships between neural and endocrine response to food consumption. ..
  2. ARFI ultrasound for noninvasive, Diagnostic atherosclerosis imaging
    Caterina M Gallippi; Fiscal Year: 2013
    ..atherosclerosis, including digital subtraction angiography as well as noninvasive alternatives such as magnetic resonance angiography (MRA) and duplex ultrasound...
  3. Optical Tomographic Imaging of Peripheral Arterial Disease
    Andreas H Hielscher; Fiscal Year: 2013
    ..in non- diabetics, ABI with PVR and all other existing diagnostic tests (such as Duplex Ultrasound or Magnetic resonance angiography), only provides accurate information about proximal occlusions in major arteries of the leg...
  4. PREVENTION OF HEMODIALYSIS VASCULAR ACCESS STENOSIS
    Alfred K Cheung; Fiscal Year: 2010
    ..administered using sustained-delivery systems;(4) adapt and refine 3D imaging modalities, including magnetic resonance angiography (MRA), for more accurate quantification of stenosis progression and drug efficacy at the graft ..
  5. Non-Contrast Magnetic Resonance Angiography of Peripheral Vascular Disease
    Robert R Edelman; Fiscal Year: 2013
    ..a set of novel technologies that will largely eliminate the need to administer contrast agents during magnetic resonance angiography in order to diagnose peripheral vascular disease...
  6. Effects of Vascular Health, Aging, and HAART on Cognition in HIV: A Pilot Study
    Howard A Crystal; Fiscal Year: 2013
    ..evaluated with 4 measures of vascular health (carotid ultrasound, transcranial color dopplers (TCCD), magnetic resonance angiography, and quantitative digital retinal photography (QRP))...
  7. Contrast-Enhanced Whole-Heart Coronary MRA at 3.0T
    Debiao Li; Fiscal Year: 2012
    ..0-Tesla systems. Magnetic resonance angiography (MRA) is a promising screening test to select candidates for conventional angiography...
  8. Functional Magnetic Resonance Angiography (fMRA) of the Brain
    PATRICK ALAN TURSKI; Fiscal Year: 2010
    ..PUBLIC HEALTH RELEVANCE: Functional Magnetic Resonance Angiography (fMRA) is a method to visualize the vascular structures of the brain...
  9. Reconstruction and Mapping of Human Brain Vasculature
    JUAN R contact CEBRAL; Fiscal Year: 2010
    ..characterization of brain vasculature and its variability among normal subjects from non-invasive magnetic resonance angiography (MRA)...
  10. Pediatric template of brain perfusion
    DANNY JIONG JIONG WANG; Fiscal Year: 2013
    ....
  11. 25th Annual Workshop on Magnetic Resonance Angiography
    Yi Wang; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): The objective of the "25th Annual Workshop on Magnetic Resonance Angiography" (referred to as MRA workshop hereafter) is to provide a forum for scientists and clinicians interested in MR angiography ..
  12. Microvascular Measures of Perfusion in Stroke Recanalization
    Michael E Moseley; Fiscal Year: 2013
    ..abstract_text> ..
  13. The Intracranial Atherosclerotic Disease and Cognitive Impairment Study
    Bruce A Wasserman; Fiscal Year: 2013
    ..We plan to acquire magnetic resonance angiography (MRA) studies on these 2000 subjects at the same time MRI images are being acquired for ARIC-NCS...
  14. Vertebrobasilar Flow Evaluation and Risk of Transient Ischemic Attack and Stroke
    Sepideh Amin-Hanjani; Fiscal Year: 2012
    ..intracranial blood flow, the extent of which can be measured noninvasively using quantitative magnetic resonance angiography (QMRA)...
  15. SPECIMEN BASED ACCURACY OF CAROTID STENOSIS EVALUATION
    David Saloner; Fiscal Year: 1999
    ..to assess stenosis at the carotid bifurcation, namely Doppler Ultrasound Catheter Angiography, and Magnetic Resonance Angiography. The gold standard by which these modalities will be evaluated will be the endarterectomy specimen ..
  16. SEVERE DIFFUSE TRAUMATIC BRAIN INJURY
    P David Adelson; Fiscal Year: 2001
    ....
  17. MRI-Guided Angioplasty of Renal Artery Stenosis
    Reed Omary; Fiscal Year: 2005
    ..In swine, the proposal aims to test the hypotheses that: 1) Intra-arterial gadolinium-enhanced magnetic resonance angiography (MRA) depicts renal arterial lumen caliber as accurately as x-ray angiography; 2) The technical ..
  18. VASCULAR FUNCTION BY MAGNETIC RESONANCE ANGIOGRAPHY
    HARRY SILBER; Fiscal Year: 2005
    ..Using phase-contrast magnetic resonance angiography, we have shown a linear relationship between wall shear stress during peak reactive hyperemia and ..
  19. MR ASSESSMENT OF MAGNESIUM IN ACUTE STROKE
    Chelsea Kidwell; Fiscal Year: 2003
    ..abstract_text> ..
  20. MAPPING INTRACRANIAL ANEURYSM SUSCEPTIBILITY LOCI
    Lisa Cannon Albright; Fiscal Year: 2001
    ..are to identify high-risk families, screen relatives of affected individuals using high resolution magnetic resonance angiography to detect aneurysms, collect blood samples for DNA from family members, characterize familial ..
  21. MRI OF RENAL ANATOMY AND FUNCTION IN CHRONIC ISCHEMIA
    Frank Sommer; Fiscal Year: 2002
    ..obtained through further development of successful existing techniques for ultrafast contrast-enhanced magnetic resonance angiography (MRA)...
  22. Induced Hypertension for Acute Ischemic Stroke
    Robert Wityk; Fiscal Year: 2004
    ..An association of improved function, with reduction in the volume of mismatch, will support the proposed physiology. ..
  23. HYPERTENSION, COGNITION, AND THE BRAIN IN OLDER ADULTS
    SHARI WALDSTEIN; Fiscal Year: 2002
    ..imaging (MRI) ratings of microvascular disease involving periventricular and deep white matter; (3) magnetic resonance angiography (MRA) ratings of macrovascular disease of the cerebral and cervicocerebral arteries; and (4) relative ..
  24. MRI Evaluation of Infarct Induced Ventricular Remodeling
    AARON BLOM; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  25. RAPID MR ANGIOGRAPHY WITH REDUCED ARTIFACT
    JAMES PIPE; Fiscal Year: 2000
    ..The specific goal is to develop rapid magnetic resonance angiography (MRA) encoding techniques that are robust for flow patterns with spatially and temporally varying ..
  26. Image-guided treatment planning for neuro-interventions
    Kenneth Hoffmann; Fiscal Year: 2006
    ..tortuosity of vessels can be performed from data extracted from computed tomography angiography (CTA), magnetic resonance angiography (MRA), and biplane or rotational angiograms, but the intervention a list also needs feedback of ..
  27. MANIPULATION OF THE NOS PATHWAY IN ARTERIAL DISEASE
    John Cooke; Fiscal Year: 2004
    ..pressures, plethysmography, and by MR perfusion imaging), conduit vessel structure (using magnetic resonance angiography); and evidence of angiogenesis using novel MR algorithms (to include flow-independent imaging, ..
  28. Aspirin Prophylaxis in Sickle Cell Disease
    NORMA LERNER; Fiscal Year: 2006
    ..3. To assess the feasibility of MRI and Magnetic Resonance Angiography (MRA) studies, and the utility of classification systems for use in group comparisons. 5...
  29. MRI of Brain Ischemia and Reperfusion in a Primate Model
    Alex de Crespigny; Fiscal Year: 2005
    ..A successful outcome from this study on nonhuman primates will generate data that will be directly relevant to the study and management of stroke in humans. ..
  30. IMPROVED MR PERIPHERAL ANGIOGRAPHY
    Dwight Nishimura; Fiscal Year: 1999
    This application is an amended version of 1 RO1 HL56394, previously titled "Improved Methods for Magnetic Resonance Angiography." The original application had proposed the broad development of several new methods for noninvasive magnetic ..
  31. OPTIMIZING STROKE PREVENTION IN SC ANEMIA CHILDREN
    Robert Adams; Fiscal Year: 2004
    ..e., 18-54 months of follow-up per patient). Children with evidence of significant arterial disease on Magnetic Resonance Angiography will be excluded. All patients will receive quarterly TCD examinations...
  32. OPTIMIZING STROKE PREVENTION IN SICKLE CELL ANEMIA
    Donald Brambilla; Fiscal Year: 2004
    ..e., 18-54 months of follow-up per patient). Children with evidence of significant arterial disease on Magnetic Resonance Angiography will be excluded. All patients will receive quarterly TCD examinations...
  33. DNA LINKAGE ANALYSIS IN INTRACRANIAL ANEURYSM FAMILIES
    GERARDUS TROMP; Fiscal Year: 2001
    ..b>Magnetic resonance angiography (MRA) was carried out in 531 asymptomatic first degree relatives of the probands...
  34. THE VALIDITY OF CE-MRA: A NUMERICAL AND PHANTOM STUDY
    Liang Der Jou; Fiscal Year: 2003
    ..overall goal of this project is to improve the depiction of the vascular lumen using Contrast-Enhanced Magnetic Resonance Angiography (MRA)...
  35. THE VALIDITY OF CE-MRA: A NUMERICAL AND PHANTOM STUDY
    Liang Der Jou; Fiscal Year: 2002
    ..overall goal of this project is to improve the depiction of the vascular lumen using Contrast-Enhanced Magnetic Resonance Angiography (MRA)...
  36. Development of a Software for Parallel Imaging in MRI
    WALID KYRIAKOS; Fiscal Year: 2002
    ..APPLICATIONS: Potential commercial applications include Cardiac MR Imaging, Functional MR imaging, and Magnetic Resonance Angiography. In addition, this software will allow a higher throughput of patients contributing to the decrease of ..
  37. Orthotopic models of tumor angiogenesis and blood flow
    Meng Yang; Fiscal Year: 2003
    ..of optical imaging of tumor angiogenesis and blood flow with similar measurements by dynamic micro magnetic resonance angiography (MRA)...
  38. 3D CEREBRAL VESSEL LOCATION FOR SURGICAL PLANNING
    Elizabeth Bullitt; Fiscal Year: 2001
    ..We propose a number of studies to evaluate the accuracy and utility of our approach, and we also propose new visualization methods to indicate the uncertainty of our symbolic descriptions of image objects. ..
  39. 3D CEREBRAL VESSEL LOCATION FOR SURGICAL PLANNING
    Elizabeth Bullitt; Fiscal Year: 2008
    ..unreadable] [unreadable]..
  40. Noninvasive assessment of tumor malignancy
    Elizabeth Bullitt; Fiscal Year: 2010
    ....
  41. 3D Image Guided Endovascular Surgery
    Elizabeth Bullitt; Fiscal Year: 2006
    ..Indeed, the methods to be developed under this proposal have the potential to change how endovascular procedures are performed throughout the body. ..
  42. Susceptibility Weighted Imaging (SWI)
    EWART MARK HAACKE; Fiscal Year: 2010
    ..Recently, SWI has also become available to the clinical world for every day use and therefore its continued technical development is of paramount importance for the proper diagnosis of these diseases in patients. ..
  43. Evaluation of New Imaging Methodologies at 7T
    EWART HAACKE; Fiscal Year: 2007
    ..Many of the approaches developed and applied on this animal system are expected to have important clinical impact. All of these projects will substantially benefit from the proposed acquisition. [unreadable] [unreadable] [unreadable]..
  44. Prospective Investigation for Pulmonary Embolism Dx III
    Paul Stein; Fiscal Year: 2008
    ..abstract_text> ..
  45. Magnetic resonance angiography
    Christopher Reinhardt; Fiscal Year: 2008
    ..b>Magnetic resonance angiography (MRA) offers a noninvasive and potentially less costly alternative...
  46. PROSPECTIVE INVESTIGATION OF PULMONARY EMBOLISM DX-II
    Paul Stein; Fiscal Year: 2003
    ..4) The team of investigators is strong, and has collaborated previously in successful research in PE. ..
  47. Iron and Atherosclerosis
    Subha Raman; Fiscal Year: 2006
    ..Subgroup analyses will include comparison of the presence of iron symptomatic versus asymptomatic patients and women versus age-matched men. ..
  48. Clinical Research Using Non-Fourier 3D Cardiac MRI
    Frank Rybicki; Fiscal Year: 2007
    ..unreadable] [unreadable]..
  49. BREATH HOLD 3D MRA OF THE CORONARY ARTERIES
    Robert Edelman; Fiscal Year: 2002
    Cardiovascular disease remains the leading cause of death in the United States. Coronary magnetic resonance angiography (MRA) has the potential to become a non-invasive clinical alternative to diagnostic coronary catheterization, with an ..
  50. Interventional Management of Stroke III Planning Grant
    Joseph Broderick; Fiscal Year: 2004
    ..10. Explore funding of interventional angiography by CMS. 11. Continue interaction with industry, with attention to devices that might be applied to a device-augmented future IV/IA paradigm. ..
  51. FUNCTIONAL MRI AT COLUMNAR RESOLUTION
    Seong Gi Kim; Fiscal Year: 2002
    ..Further insight into functional columnar organization in animals and humans will greatly facilitate our basic understanding of the structure, development and plasticity of cortical maps. ..
  52. 9.4 T/31 cm Bore MR Instrument
    Seong Gi Kim; Fiscal Year: 2002
    ..Combining MR imaging and conventional physiology research in a synergistic fashion, the new imaging facility with the proposed 9.4T MR system will play a central role in biomedical MR research. ..
  53. Smash Contrast-Enhanced 3D MR Angiography
    Robert Edelman; Fiscal Year: 2002
    DESCRIPTION (Adapted from applicant's abstract): Contrast-enhanced three-dimensional magnetic resonance angiography (3DMRA) is proving to be a useful diagnostic adjunct to x-ray angiography...
  54. Familial Intracranial Aneurysm Study II (FIA II)
    JOSEPH PAUL BRODERICK; Fiscal Year: 2010
    ..with multiple members with an IA including collection of genetic material, extensive interviews, and magnetic resonance angiography to detect unruptured aneurysms in 20% of eligible subjects...
  55. PHYSIOLOGICAL BASIS OF FUNCTIONAL MRI SIGNALS
    Seong Gi Kim; Fiscal Year: 2002
    ....
  56. 3T Atherosclerotic MRI and Carotid Artery Scoring System
    Chun Yuan; Fiscal Year: 2009
    ....
  57. Novel MRI and 1H-MRS markers in Primary Progressive MS
    Matilde Inglese; Fiscal Year: 2009
    ..Letter of support: Prof. John DeLuca, consultant PHS 398 (Rev. 05/01) Page. Form Page 3 Use /2-inch MARGINS. Number pages consecutively at the bottom throughout the application. Do not use suffixes such as 3a, 3b. ..
  58. SVM based group data analysis for drug abuse disorder ASL perfusion study
    Ze Wang; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  59. Smash Contrast-Enhanced 3D MR Angiography
    Robert Edelman; Fiscal Year: 2003
    DESCRIPTION (Adapted from applicant's abstract): Contrast-enhanced three-dimensional magnetic resonance angiography (3DMRA) is proving to be a useful diagnostic adjunct to x-ray angiography...
  60. STROKE OUTCOME AND NEUROIMAGING OF INTRACRANIAL STENOSIS
    Edward Feldmann; Fiscal Year: 2003
    ..Noninvasive testing such as transcranial Doppler ultrasound (TCD) and magnetic resonance angiography (MRA) to identify intracranial atherosclerosis is in widespread use but has not been rigorously ..