Michael Markl

Summary

Affiliation: Northwestern University
Country: USA

Publications

  1. ncbi request reprint Myocardial T2-mapping and velocity mapping: changes in regional left ventricular structure and function after heart transplantation
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
    Magn Reson Med 70:517-26. 2013
  2. doi request reprint 4D flow MRI
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA Department of Biomedical Engineering, Northwestern University, Chicago, Illinois, USA
    J Magn Reson Imaging 36:spcone. 2012
  3. doi request reprint 4D flow MRI
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 36:1015-36. 2012
  4. doi request reprint Gradient echo imaging
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 35:1274-89. 2012
  5. ncbi request reprint Analysis of pulse wave velocity in the thoracic aorta by flow-sensitive four-dimensional MRI: reproducibility and correlation with characteristics in patients with aortic atherosclerosis
    Michael Markl
    Department of Radiology, Medical Physics, University Medical Center Freiburg, Germany
    J Magn Reson Imaging 35:1162-8. 2012
  6. doi request reprint Noninvasive evaluation of 3D hemodynamics in a complex case of single ventricle physiology
    Michael Markl
    Department of Radiology, Medical Physics, University Medical Center, Freiburg, Germany
    J Magn Reson Imaging 35:933-7. 2012
  7. ncbi request reprint Noninvasive evaluation of 3D hemodynamics in a complex case of single ventricle physiology
    Michael Markl
    Department of Radiology, Medical Physics, University Medical Center, Freiburg, Germany Departments of Radiology and Biomedical Engineering, Northwestern University, Chicago, Illinois, USA
    J Magn Reson Imaging 35:spcone. 2012
  8. ncbi request reprint Time-resolved 3D MR velocity mapping at 3T: improved navigator-gated assessment of vascular anatomy and blood flow
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 25:824-31. 2007
  9. ncbi request reprint In vivo wall shear stress distribution in the carotid artery: effect of bifurcation geometry, internal carotid artery stenosis, and recanalization therapy
    Michael Markl
    University Hospital Freiburg, Department of Radiology, Medical Physics, Germany
    Circ Cardiovasc Imaging 3:647-55. 2010
  10. ncbi request reprint Time-resolved 3-dimensional velocity mapping in the thoracic aorta: visualization of 3-directional blood flow patterns in healthy volunteers and patients
    Michael Markl
    Department of Radiology, Stanford University, Stanford, CA 94304, USA
    J Comput Assist Tomogr 28:459-68. 2004

Detail Information

Publications84

  1. ncbi request reprint Myocardial T2-mapping and velocity mapping: changes in regional left ventricular structure and function after heart transplantation
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
    Magn Reson Med 70:517-26. 2013
    ..Correlation analysis revealed moderate but significant (P < 0.010) inverse relationships between myocardial T2 and long-axis peak velocities suggesting a structure-function relationship between altered T2 and myocardial function...
  2. doi request reprint 4D flow MRI
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA Department of Biomedical Engineering, Northwestern University, Chicago, Illinois, USA
    J Magn Reson Imaging 36:spcone. 2012
    ..J. Magn. Reson. Imaging 2012;. © 2012 Wiley Periodicals, Inc...
  3. doi request reprint 4D flow MRI
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 36:1015-36. 2012
    ..Based on these developments, an overview is provided over the potential this new imaging technique has in different parts of the body from the head to the peripheral arteries...
  4. doi request reprint Gradient echo imaging
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 35:1274-89. 2012
    ..For each gradient echo sequence type, examples of applications exploiting the specific properties of the individual technique are presented...
  5. ncbi request reprint Analysis of pulse wave velocity in the thoracic aorta by flow-sensitive four-dimensional MRI: reproducibility and correlation with characteristics in patients with aortic atherosclerosis
    Michael Markl
    Department of Radiology, Medical Physics, University Medical Center Freiburg, Germany
    J Magn Reson Imaging 35:1162-8. 2012
    ....
  6. doi request reprint Noninvasive evaluation of 3D hemodynamics in a complex case of single ventricle physiology
    Michael Markl
    Department of Radiology, Medical Physics, University Medical Center, Freiburg, Germany
    J Magn Reson Imaging 35:933-7. 2012
    ..Our findings illustrate the potential role of flow-sensitive 4D MRI as a noninvasive and radiation-free technique for the frequent postinterventional follow-up in these pediatric patients...
  7. ncbi request reprint Noninvasive evaluation of 3D hemodynamics in a complex case of single ventricle physiology
    Michael Markl
    Department of Radiology, Medical Physics, University Medical Center, Freiburg, Germany Departments of Radiology and Biomedical Engineering, Northwestern University, Chicago, Illinois, USA
    J Magn Reson Imaging 35:spcone. 2012
    ..J. Magn. Reson. Imaging 2012 © 2012 Wiley Periodicals, Inc...
  8. ncbi request reprint Time-resolved 3D MR velocity mapping at 3T: improved navigator-gated assessment of vascular anatomy and blood flow
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 25:824-31. 2007
    ..To evaluate an improved image acquisition and data-processing strategy for assessing aortic vascular geometry and 3D blood flow at 3T...
  9. ncbi request reprint In vivo wall shear stress distribution in the carotid artery: effect of bifurcation geometry, internal carotid artery stenosis, and recanalization therapy
    Michael Markl
    University Hospital Freiburg, Department of Radiology, Medical Physics, Germany
    Circ Cardiovasc Imaging 3:647-55. 2010
    ....
  10. ncbi request reprint Time-resolved 3-dimensional velocity mapping in the thoracic aorta: visualization of 3-directional blood flow patterns in healthy volunteers and patients
    Michael Markl
    Department of Radiology, Stanford University, Stanford, CA 94304, USA
    J Comput Assist Tomogr 28:459-68. 2004
    ..Various visualization tools were used to analyze blood flow patterns within a single 3-component velocity volumetric acquisition of the entire thoracic aorta..
  11. doi request reprint 4D phase contrast MRI at 3 T: effect of standard and blood-pool contrast agents on SNR, PC-MRA, and blood flow visualization
    Jelena Bock
    Department of Diagnostic Radiology and Medical Physics, University of Freiburg, Freiburg, Germany
    Magn Reson Med 63:330-8. 2010
    ..For three-dimensional flow visualization, a trend toward improved results for the data with contrast agent was observed...
  12. doi request reprint A feasibility study to evaluate splanchnic arterial and venous hemodynamics by flow-sensitive 4D MRI compared with Doppler ultrasound in patients with cirrhosis and controls
    Zoran Stankovic
    Departments of Radiology and Biomedical Engineering, Northwestern University, Chicago, IL 60611, USA
    Eur J Gastroenterol Hepatol 25:669-75. 2013
    ..To evaluate the feasibility of time-resolved flow-sensitive four-dimensional (4D) MRI for the visualization and quantification of splanchnic arterial and portal venous hemodynamics in patients with cirrhosis and in controls...
  13. ncbi request reprint Three-dimensional flow characteristics in aortic coarctation and poststenotic dilatation
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Albert Ludwigs, University Freiburg, Hugstetter Str 55, 79106 Freiburg, Germany
    J Comput Assist Tomogr 33:776-8. 2009
    ....
  14. doi request reprint Three-dimensional analysis of segmental wall shear stress in the aorta by flow-sensitive four-dimensional-MRI
    Alex Frydrychowicz
    Department of Diagnostic Radiology and Medical Physics, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 30:77-84. 2009
    ..To assess the distribution and regional differences of flow and vessel wall parameters such as wall shear stress (WSS) and oscillatory shear index (OSI) in the entire thoracic aorta...
  15. doi request reprint In vivo noninvasive 4D pressure difference mapping in the human aorta: phantom comparison and application in healthy volunteers and patients
    Jelena Bock
    Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany
    Magn Reson Med 66:1079-88. 2011
    ..This study demonstrates the potential of the applied approach to derive additional quantitative information such as pressure gradients from time-resolved 3D phase contrast MRI...
  16. ncbi request reprint Magnetic resonance tissue phase mapping of myocardial motion: new insight in age and gender
    Daniela Föll
    Department of Cardiology and Angiology, University Hospital Freiburg, Hugstetterstrasse 55, Freiburg, Germany
    Circ Cardiovasc Imaging 3:54-64. 2010
    ..Magnetic resonance phase-contrast imaging (tissue phase mapping) enabling the analysis of segmental, 3-directional myocardial velocities with high temporal resolution (13.8 ms) was used to assess left ventricular motion...
  17. doi request reprint Retrograde embolism from the descending aorta: visualization by multidirectional 3D velocity mapping in cryptogenic stroke
    Andreas Harloff
    Department of Neurology and Clinical Neurophysiology, University Hospital Freiburg, Freiburg, Germany
    Stroke 40:1505-8. 2009
    ..The purpose of this study was to determine the role of plaques >or=4 mm and thrombi (complex plaques) in the descending aorta (DAo) as an embolic high-risk source for stroke...
  18. doi request reprint Time-resolved three-dimensional magnetic resonance velocity mapping of cardiovascular flow paths in volunteers and patients with Fontan circulation
    Michael Markl
    Department of Radiology, Medical Physics, University Hospital Freiburg, Breisacher Str 60a, 79106 Freiburg, Germany
    Eur J Cardiothorac Surg 39:206-12. 2011
    ..To apply flow-sensitive magnetic resonance imaging for the evaluation of whole-heart flow characteristics in healthy volunteers and patients with Fontan circulation...
  19. doi request reprint Comparison of gadofosveset trisodium and gadobenate dimeglumine during time-resolved thoracic MR angiography at 3T
    Alex Frydrychowicz
    Department of Radiology, University of Wisconsin Madison, 600 Highland Avenue, CSC E1 322, Madison, WI 53729, USA
    Acad Radiol 17:1394-400. 2010
    ....
  20. doi request reprint Aortic flow patterns in patients with Marfan syndrome assessed by flow-sensitive four-dimensional MRI
    Julia Geiger
    Department of Radiology, Medical Physics, University Hospital Freiburg, Germany
    J Magn Reson Imaging 35:594-600. 2012
    ....
  21. ncbi request reprint In vivo assessment of wall shear stress in the atherosclerotic aorta using flow-sensitive 4D MRI
    Andreas Harloff
    Department of Neurology, University Hospital Freiburg, Freiburg, Germany
    Magn Reson Med 63:1529-36. 2010
    ..Our results indicate that the predictive value of WSS for plaque existence depends on the aortic segment and that locations of critical wall parameters move to neighboring segments of regions affected by atherosclerosis...
  22. pmc Evaluation of 3D blood flow patterns and wall shear stress in the normal and dilated thoracic aorta using flow-sensitive 4D CMR
    Jonas Bürk
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    J Cardiovasc Magn Reson 14:84. 2012
    ..The purpose of this study was to investigate 3D flow patterns and vessel wall parameters in patients with dilated ascending aorta, age-matched subjects, and healthy volunteers...
  23. ncbi request reprint Ascending-descending aortic bypass surgery in aortic arch coarctation: four-dimensional magnetic resonance flow analysis
    Alex Frydrychowicz
    Department of Diagnostic Radiology, University Hospital Freiburg, Freiburg, Germany
    J Thorac Cardiovasc Surg 133:260-2. 2007
  24. doi request reprint Visualization of multidirectional regional left ventricular dynamics by high-temporal-resolution tissue phase mapping
    Daniela Föll
    Department of Cardiology and Angiology, University Hospital, Albert Ludwigs University Freiburg, Freiburg, Germany
    J Magn Reson Imaging 29:1043-52. 2009
    ..To apply high-temporal-resolution tissue phase mapping (TPM) to derive a detailed representation of normal regional myocardial motion in a large cohort of 58 normal subjects (three age groups) and one patient with dilated cardiomyopathy...
  25. ncbi request reprint Time-resolved, 3-dimensional magnetic resonance flow analysis at 3 T: visualization of normal and pathological aortic vascular hemodynamics
    Alex Frydrychowicz
    Department of Diagnostic Radiology, University Hospital Freiburg, Freiburg, Germany
    J Comput Assist Tomogr 31:9-15. 2007
    ....
  26. ncbi request reprint Optimized 3D bright blood MRI of aortic plaque at 3 T
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, 79106 Freiburg, Germany
    Magn Reson Imaging 26:330-6. 2008
    ....
  27. ncbi request reprint Effect of cannula position in the thoracic aorta with continuous left ventricular support: four-dimensional flow-sensitive magnetic resonance imaging in an in vitro model
    Christoph Benk
    Department of Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
    Eur J Cardiothorac Surg 44:551-8. 2013
    ..The purpose of this study was to evaluate flow patterns in a realistic in vitro model system using four-dimensional flow-sensitive magnetic resonance imaging...
  28. ncbi request reprint Steady-state free precession MR imaging: improved myocardial tag persistence and signal-to-noise ratio for analysis of myocardial motion
    Michael Markl
    Department of Radiology, Stanford University, Lucas MRI S Center, 1201 Welch Rd, Rm P 284, Palo Alto, CA 94304, USA
    Radiology 230:852-61. 2004
    ..Increased SNR and tag persistence can be achieved simultaneously with SSFP imaging compared with SPGR tagging methods. As a result, the proposed technique may be useful for analysis of diastolic ventricular function...
  29. pmc Four-dimensional, flow-sensitive magnetic resonance imaging of blood flow patterns in thoracic aortic dissections
    Christopher J Francois
    Department of Radiology, University of Wisconsin Madison, Madison, WI 53562, USA
    J Thorac Cardiovasc Surg 145:1359-66. 2013
    ..The purpose of this study was to evaluate alterations in flow patterns in thoracic aortic dissections using 4-dimensional, flow-sensitive magnetic resonance imaging...
  30. doi request reprint Bicuspid aortic valve is associated with altered wall shear stress in the ascending aorta
    Alex J Barker
    Department of Radiology, Medical Physics, University Medical Center Freiburg, Germany
    Circ Cardiovasc Imaging 5:457-66. 2012
    ..Hemodynamics may play a role contributing to the progression of bicuspid aortic valve (BAV) aortopathy. This study measured the impact of BAV on the distribution of regional aortic wall shear stress (WSS) compared with control cohorts...
  31. ncbi request reprint Time-resolved magnetic resonance angiography and flow-sensitive 4-dimensional magnetic resonance imaging at 3 Tesla for blood flow and wall shear stress analysis
    Alex Frydrychowicz
    Department of Diagnostic Radiology and Medical Physics, University Hospital Freiburg, Freiburg, Germany
    J Thorac Cardiovasc Surg 136:400-7. 2008
    ....
  32. doi request reprint Highly k-t-space-accelerated phase-contrast MRI
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    Magn Reson Med 60:1169-77. 2008
    ..Quantitative comparisons of blood flow velocities and pixel-wise correlation analysis of velocities highlight the potential of PEAK-GRAPPA for highly accelerated dynamic phase-contrast velocity mapping...
  33. doi request reprint Aortic hemodynamics in patients with and without repair of aortic coarctation: in vivo analysis by 4D flow-sensitive magnetic resonance imaging
    Alex Frydrychowicz
    Department of Radiology, Medical Physics, University Hospital Freiburg, Germany
    Invest Radiol 46:317-25. 2011
    ....
  34. doi request reprint Analysis of complex cardiovascular flow with three-component acceleration-encoded MRI
    Alex J Barker
    Department of Radiology, Medical Physics, University Medical Center, Freiburg
    Magn Reson Med 67:50-61. 2012
    ..4D acceleration data, visualized in combination with the velocity data, may provide new insight into complex flow phenomena...
  35. ncbi request reprint High resolution 3T MRI for the assessment of cervical and superficial cranial arteries in giant cell arteritis
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 24:423-7. 2006
    ..1 mmol/kg) contrast agent administration and a dedicated phased-array head and neck coil at 3T...
  36. doi request reprint Three-dimensional flow characteristics in ventricular assist devices: impact of valve design and operating conditions
    Christoph Benk
    Department of Cardiovascular Surgery, University Hospital, Freiburg, Germany
    J Thorac Cardiovasc Surg 142:1019-26. 2011
    ....
  37. ncbi request reprint Plaques in the descending aorta: a new risk factor for stroke? Visualization of potential embolization pathways by 4D MRI
    Andreas Harloff
    Department of Neurology and Clinical Neurophysiology, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 26:1651-5. 2007
    ..Our findings indicate that taking plaques of the descending aorta into consideration may help improve the spectrum of pathologies considered as high-risk sources for brain ischemia...
  38. ncbi request reprint Time-resolved three-dimensional magnetic resonance velocity mapping of aortic flow in healthy volunteers and patients after valve-sparing aortic root replacement
    Michael Markl
    Department of Radiology, Stanford University, CA 94304, USA
    J Thorac Cardiovasc Surg 130:456-63. 2005
    ..To provide more complete characterization of ascending aortic blood flow, including vortex formation behind the valve cusps, in healthy subjects and patients after valve-sparing aortic root replacement (David reimplantation)...
  39. ncbi request reprint Comparison of flow patterns in ascending aortic aneurysms and volunteers using four-dimensional magnetic resonance velocity mapping
    Thomas A Hope
    Department of Radiology, Stanford University, Stanford, California 94304, USA
    J Magn Reson Imaging 26:1471-9. 2007
    ..To determine the difference in flow patterns between healthy volunteers and ascending aortic aneurysm patients using time-resolved three-dimensional (3D) phase contrast magnetic resonance velocity (4D-flow) profiling...
  40. ncbi request reprint Visualization of tissue velocity data from cardiac wall motion measurements with myocardial fiber tracking: principles and implications for cardiac fiber structures
    Bernd André Jung
    Department of Diagnostic Radiology, Medical Physics, Hugstetterstr 55, D 79106 Freiburg, University of Freiburg, Germany
    Eur J Cardiothorac Surg 29:S158-64. 2006
    ..Fiber orientation is inherently linked to cardiac wall motion, which can be measured with phase contrast magnetic resonance imaging (MRI), also termed tissue phase mapping (TPM)...
  41. doi request reprint k-t-Space accelerated myocardial perfusion
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    J Magn Reson Imaging 28:1080-5. 2008
    ....
  42. doi request reprint Normal and altered three-dimensional portal venous hemodynamics in patients with liver cirrhosis
    Zoran Stankovic
    Department of Diagnostic Radiology and Medical Physics, University Medical Center Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany
    Radiology 262:862-73. 2012
    ....
  43. doi request reprint Vocal tract configurations in male alto register functions
    Matthias Echternach
    Institute of Musicians Medicine, Freiburg University Medical Center, Freiburg, Germany
    J Voice 25:670-7. 2011
    ..However, the sound produced differs in professional altos compared with the modal register or falsetto of untrained voices. The aim of this study was to analyze differences of the vocal tract shapes in male alto register functions...
  44. ncbi request reprint 3D MRI provides improved visualization and detection of aortic arch plaques compared to transesophageal echocardiography
    Andreas Harloff
    Department of Neurology, University Hospital Freiburg, Breisacher Strasse 64, Freiburg, Germany
    J Magn Reson Imaging 36:604-11. 2012
    ..To compare 3D magnetic resonance imaging (3D MRI) with transesophageal echocardiography (TEE) for the detection of complex aortic plaques (≥4 mm thick, ulcerated, or containing mobile thrombi)...
  45. pmc Comprehensive 4D velocity mapping of the heart and great vessels by cardiovascular magnetic resonance
    Michael Markl
    Department of Radiology, Medical Physics, University Hospital Freiburg, Germany
    J Cardiovasc Magn Reson 13:7. 2011
    ..In this article, methods used for the acquisition, visualization, and quantification of such datasets are reviewed and illustrated...
  46. ncbi request reprint Images in cardiovascular medicine. Time-resolved 3-dimensional magnetic resonance velocity mapping at 3 T reveals drastic changes in flow patterns in a partially thrombosed aortic arch
    Alex Frydrychowicz
    Department of Diagnostic Radiology, University Hospital, Albert Ludwigs University, Freiburg, Germany
    Circulation 113:e460-1. 2006
  47. ncbi request reprint Navigator gated high temporal resolution tissue phase mapping of myocardial motion
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    Magn Reson Med 55:937-42. 2006
    ....
  48. doi request reprint On the undersampling strategies to accelerate time-resolved 3D imaging using k-t-GRAPPA
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    Magn Reson Med 66:966-75. 2011
    ..Extended GRAPPA-based parallel imaging with optimized multidimensional reconstruction kernels has the potential to substantially accelerate data acquisitions in time-resolved 3D MRI...
  49. pmc Multidirectional flow analysis by cardiovascular magnetic resonance in aneurysm development following repair of aortic coarctation
    Alex Frydrychowicz
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Germany
    J Cardiovasc Magn Reson 10:30. 2008
    ....
  50. doi request reprint Three-directional acceleration phase mapping of myocardial function
    Felix Staehle
    Department of Radiology, Medical Physics, University Hospital Freiburg, Germany
    Magn Reson Med 65:1335-45. 2011
    ..Comparisons of directly measured and derived myocardial acceleration dynamics over the cardiac cycle revealed good correlation (r = 0.45-0.68, P < 0.01) between both methods...
  51. doi request reprint Professional opera tenors' vocal tract configurations in registers
    Matthias Echternach
    Department of Musicians Medicine, Freiburg University Medical Center, Freiburg, Germany
    Folia Phoniatr Logop 62:278-87. 2010
    ..Tenor singers may reach their top pitch range either by shifting from modal to falsetto register or by using their so-called 'voix mixte'...
  52. ncbi request reprint k-t GRAPPA accelerated four-dimensional flow MRI in the aorta: Effect on scan time, image quality, and quantification of flow and wall shear stress
    Susanne Schnell
    Department of Radiology, Northwestern University, Chicago, Illinois, USA
    Magn Reson Med 72:522-33. 2014
    ..The aim was to systematically investigate the impact of different acceleration factors and number of coil elements on acquisition time, image quality and quantification of hemodynamic parameters...
  53. ncbi request reprint Reproducibility study of four-dimensional flow MRI of arterial and portal venous liver hemodynamics: Influence of spatio-temporal resolution
    Zoran Stankovic
    Department of Radiology, Northwestern University, Chicago, Illinois, USA Department of Biomedical Engineering, Northwestern University, Chicago, Illinois, USA Department of Diagnostic Radiology and Medical Physics, University Medical Center Freiburg, Freiburg, Germany
    Magn Reson Med 72:477-84. 2014
    ....
  54. doi request reprint Aortic wall shear stress in Marfan syndrome
    Julia Geiger
    Department of Radiology, Medical Physics, University Medical Center, Freiburg, Germany
    Magn Reson Med 70:1137-44. 2013
    ..01). These findings indicate differences in WSS associated with MFS despite similar aortic dimensions compared to controls...
  55. pmc Bicuspid aortic cusp fusion morphology alters aortic three-dimensional outflow patterns, wall shear stress, and expression of aortopathy
    Riti Mahadevia
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL R M, A J B, SS, P E, J Collins, J Carr, M M Division of Cardiology, Northwestern University, Chicago, IL P K Department of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, University of Calgary, Canada P W M F Division of Cardiothoracic Surgery, Northwestern University, Chicago, IL P W M F, S C M, P M and Department Biomedical Engineering, McCormick School of Engineering, Northwestern University, Chicago, IL M M
    Circulation 129:673-82. 2014
    ....
  56. ncbi request reprint 4-D MRI flow analysis in the course of interrupted aortic arch reveals complex morphology and quantifies amount of collateral blood flow
    Daniel Hirtler
    Department of Pediatric Cardiology and Congenital Heart Disease, University Hospital Freiburg, Mathildenstr 1, 79106, Freiburg, Germany
    Pediatr Radiol 43:1037-40. 2013
    ..Our findings highlight the entire morphological and functional problem of interrupted aortic arch and illustrate the potential of flow-sensitive 4-D MR for surgical planning in congenital heart disease. ..
  57. doi request reprint Intracranial artery velocity measurement using 4D PC MRI at 3 T: comparison with transcranial ultrasound techniques and 2D PC MRI
    Stephan Meckel
    Department of Neuroradiology, University Hospital Freiburg, Breisacher Strasse 64, 79106, Freiburg, Germany
    Neuroradiology 55:389-98. 2013
    ..However, it still lacks validation with standards of reference. Our goal was to compare blood flow quantification derived from 4D PC MRI with transcranial ultrasound and 2D PC MRI...
  58. doi request reprint Postoperative pulmonary and aortic 3D haemodynamics in patients after repair of transposition of the great arteries
    Julia Geiger
    Department of Radiology, Medical Physics, University Medical Center Freiburg, Hugstetter Str 55, 79106, Freiburg, Germany
    Eur Radiol 24:200-8. 2014
    ..To characterise aortic and pulmonary haemodynamics and investigate the correlation with post-surgical anatomy in patients with dextro-transposition of the great arteries (d-TGA)...
  59. doi request reprint Flow-sensitive 4D MRI of the thoracic aorta: comparison of image quality, quantitative flow, and wall parameters at 1.5 T and 3 T
    Christoph Strecker
    Department of Neurology, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 36:1097-103. 2012
    ..A volunteer study at 1.5 T and 3 T was conducted to compare phase-contrast MR angiography (MRA) and 3D flow visualization quality as well as quantification of aortic hemodynamics...
  60. ncbi request reprint Measurement of left ventricular velocities: phase contrast MRI velocity mapping versus tissue-doppler-ultrasound in healthy volunteers
    Bernd Jung
    Department of Radiology, Section of Medical Physics, University of Freiburg, Freiburg, Germany
    J Cardiovasc Magn Reson 6:777-83. 2004
    ..97. The in vivo study in 29 healthy volunteers demonstrates a high validity of time-resolved phase contrast measurements for the analysis of left ventricular myocardial velocities...
  61. doi request reprint Parallel MRI with extended and averaged GRAPPA kernels (PEAK-GRAPPA): optimized spatiotemporal dynamic imaging
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    J Magn Reson Imaging 28:1226-32. 2008
    ....
  62. doi request reprint Cold ischaemic time and time after transplantation alter segmental myocardial velocities after heart transplantation
    Daniela Föll
    Department of Cardiology and Angiology I, University Heart Centre Freiburg, Freiburg, Germany
    Eur J Cardiothorac Surg 45:502-8. 2014
    ..The aim of this study was to investigate changes in segmental, three-directional left ventricular (LV) velocities in patients after heart transplantation (Tx)...
  63. doi request reprint Co-registration of the distribution of wall shear stress and 140 complex plaques of the aorta
    Michael Markl
    Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
    Magn Reson Imaging 31:1156-62. 2013
    ..While WSS and OSI showed expected changes in patients compared to healthy controls, their distribution pattern at complex plaques indicated a more complex and heterogeneous relationship than previously anticipated...
  64. pmc Three-dimensional hemodynamics in intracranial aneurysms: influence of size and morphology
    Susanne Schnell
    Department of Radiology, Northwestern University, Chicago, Illinois, USA
    J Magn Reson Imaging 39:120-31. 2014
    ..We hypothesize that different IA groups, defined by size and morphology, exhibit different velocity fields, wall shear stress, and vorticity...
  65. ncbi request reprint Peripheral vessel scout imaging based on continuously moving table acquisition of projection data
    Sandra Baumann
    Department of Radiology, University Hospital Freiburg, Freiburg, Germany
    J Comput Assist Tomogr 36:591-5. 2012
    ..Subjective image analysis revealed excellent vessel depiction, indicating that the proposed scout allows for seamless expedited visualization of major arterial structures...
  66. ncbi request reprint Investigating myocardial motion by MRI using tissue phase mapping
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg University, Hugstetterstr 55, 79106 Freiburg, Germany
    Eur J Cardiothorac Surg 29:S150-7. 2006
    ..In contrast to other imaging modalities such as echocardiography left ventricular performance can be assessed without limited anatomical or functional coverage...
  67. doi request reprint MR-based visualization and quantification of three-dimensional flow characteristics in the portal venous system
    Zoran Stankovic
    Department of Diagnostic Radiology and Medical Physics, University Hospital Freiburg, Freiburg, Germany
    J Magn Reson Imaging 32:466-75. 2010
    ..To evaluate the feasibility of time-resolved flow-sensitive MRI for the three-dimensional (3D) visualization and quantification of normal and pathological portal venous (PV) hemodynamics...
  68. ncbi request reprint Detailed analysis of myocardial motion in volunteers and patients using high-temporal-resolution MR tissue phase mapping
    Bernd Jung
    Department of Diagnostic Radiology, Medical Physics, University Hospital, Freiburg, Germany
    J Magn Reson Imaging 24:1033-9. 2006
    ..To detect and investigate details in left ventricular (LV) motion patterns with a temporal resolution comparable to that of echocardiography...
  69. ncbi request reprint Estimation of global aortic pulse wave velocity by flow-sensitive 4D MRI
    Michael Markl
    Department of Radiology, Medical Physics, University Hospital, Albert Ludwigs Universitat Freiburg, Freiburg, Germany
    Magn Reson Med 63:1575-82. 2010
    ....
  70. pmc A quantitative comparison of regional myocardial motion in mice, rabbits and humans using in-vivo phase contrast CMR
    Bernd Jung
    Department of Radiology, Medical Physics, University Medical Center, Freiburg, Germany
    J Cardiovasc Magn Reson 14:87. 2012
    ..It is therefore important to identify animal models that closely mimic physiological and pathological human cardiac function...
  71. ncbi request reprint Images in cardiovascular medicine. Four-dimensional magnetic resonance velocity mapping in a healthy volunteer with pseudocoarctation of the thoracic aorta
    Michael D Hope
    Department of Radiology, Stanford University School of Medicine, Stanford, Calif 94305 5488, USA
    Circulation 109:3221-2. 2004
  72. ncbi request reprint Cardiac CINE imaging with IDEAL water-fat separation and steady-state free precession
    Scott B Reeder
    Department of Radiology, Stanford University Medical Center, Stanford, California, USA
    J Magn Reson Imaging 22:44-52. 2005
    ..To decompose multicoil CINE steady-state free precession (SSFP) cardiac images acquired at short echo time (TE) increments into separate water and fat images, using an iterative least-squares "Dixon" (IDEAL) method...
  73. doi request reprint Carotid intima-media thickness and distensibility measured by MRI at 3 T versus high-resolution ultrasound
    Andreas Harloff
    Department of Neurology and Clinical Neurophysiology, University of Freiburg, Freiburg, Germany
    Eur Radiol 19:1470-9. 2009
    ..Our findings indicate that MRI at 3 T is a feasible and promising tool for the comprehensive assessment of normal carotid geometry and function...
  74. ncbi request reprint Three-dimensional magnetic resonance flow analysis in a ventricular assist device
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Germany
    J Thorac Cardiovasc Surg 134:1471-6. 2007
    ..Combination with flow-sensitive magnetic resonance imaging at 3 T permitted the detailed analysis of local and global 3-dimensional flow dynamics in a realistic environment...
  75. doi request reprint An approach towards molecular imaging of activated platelets allows imaging of symptomatic human carotid plaques in a new model of a tissue flow chamber
    Dominik Von Elverfeldt
    Department of Radiology Medical Physics, University Medical Center Freiburg, Germany
    Contrast Media Mol Imaging 7:204-13. 2012
    ....
  76. ncbi request reprint Rapid vessel prototyping: vascular modeling using 3t magnetic resonance angiography and rapid prototyping technology
    Michael Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Hugstetter Strasse 55, Freiburg, 79106, Germany
    MAGMA 18:288-92. 2005
    ..Conversion of thoracic aortic vasculature as measured by Magnetic Resonance Imaging into a real physical replica...
  77. ncbi request reprint On flow effects in balanced steady-state free precession imaging: pictorial description, parameter dependence, and clinical implications
    Michael Markl
    Department of Radiology, Stanford University, Stanford, California, USA
    J Magn Reson Imaging 20:697-705. 2004
    ....
  78. doi request reprint Continuously moving table time-of-flight angiography of the peripheral veins
    Sandra Huff
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
    Magn Reson Med 63:1219-29. 2010
    ..CMT TOF provides promising results and permits the detection of various pathologic changes of the venous system...
  79. doi request reprint Impaired continuity of flow in congenital heart disease with single ventricle physiology
    Michael Markl
    Department of Radiology, Medical Physics, University Hospital Freiburg, Breisacher Str 60a, 79106 Freiburg, Germany
    Interact Cardiovasc Thorac Surg 12:87-90. 2011
    ..Such findings indicate the potential of flow-sensitive 4D MRI to detect and quantify complex 3D flow alterations...
  80. ncbi request reprint Multicoil Dixon chemical species separation with an iterative least-squares estimation method
    Scott B Reeder
    Department of Radiology, Stanford University Medical Center, Stanford, California 94304, USA
    Magn Reson Med 51:35-45. 2004
    ..An analysis of the noise performance of this method is described, and methods to improve noise performance through multicoil acquisition and field map smoothing are discussed...
  81. ncbi request reprint Bilateral ce-MR angiography of the hands at 3.0 T and 1.5 T: intraindividual comparison of quantitative and qualitative image parameters in healthy volunteers
    Jan Thorsten Winterer
    Department of Diagnostic Radiology, University of Freiburg, Hugstetter Str 55, 79106, Freiburg, Germany
    Eur Radiol 18:658-64. 2008
    ..Saturation affects more the SNR of the perivascular tissue than the contrast-enhanced blood, and thus leads to a marked increase of CNR at 3.0...
  82. ncbi request reprint T2-weighted balanced SSFP imaging (T2-TIDE) using variable flip angles
    Dominik Paul
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
    Magn Reson Med 56:82-93. 2006
    ..T2-TIDE is a robust technique for acquiring T2-weighted images while exploiting the advantages of b-SSFP imaging, such as high signal-to-noise ratio (SNR) and short TRs...
  83. ncbi request reprint Time-resolved three-dimensional phase-contrast MRI
    Michael Markl
    Department of Radiology, Stanford University, Stanford, California 94304, USA
    J Magn Reson Imaging 17:499-506. 2003
    ....
  84. doi request reprint Vocal tract in female registers--a dynamic real-time MRI study
    Matthias Echternach
    Department of Musicians Medicine, Freiburg University Medical Center, Freiburg, Germany
    J Voice 24:133-9. 2010
    ..These findings suggest that in these subjects register transition was not primarily the result of modifications of the vocal tract...