Ioannis Koktzoglou

Summary

Publications

  1. ncbi request reprint Submillimeter isotropic resolution carotid wall MRI with swallowing compensation: imaging results and semiautomated wall morphometry
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 25:815-23. 2007
  2. ncbi request reprint Diffusion-prepared segmented steady-state free precession: Application to 3D black-blood cardiovascular magnetic resonance of the thoracic aorta and carotid artery walls
    Ioannis Koktzoglou
    Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, USA
    J Cardiovasc Magn Reson 9:33-42. 2007
  3. ncbi request reprint Three-dimensional black-blood MR imaging of carotid arteries with segmented steady-state free precession: initial experience
    Ioannis Koktzoglou
    Department of Radiology, Division of Vascular Surgery, Northwestern University, Chicago, IL 60611, USA
    Radiology 243:220-8. 2007
  4. ncbi request reprint Multislice dark-blood carotid artery wall imaging: a 1.5 T and 3.0 T comparison
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 23:699-705. 2006
  5. pmc Peripheral arterial disease in a symptomatic diabetic population: prospective comparison of rapid unenhanced MR angiography (MRA) with contrast-enhanced MRA
    Philip A Hodnett
    Department of Radiology, NorthShore University Healthsystem, Evanston Hospital, IL 60201, USA
    AJR Am J Roentgenol 197:1466-73. 2011
  6. doi request reprint Unenhanced flow-independent MR venography by using signal targeting alternative radiofrequency and flow-independent relaxation enhancement
    Robert R Edelman
    Department of Radiology, Evanston Northwestern Healthcare, 2650 Ridge Ave, Evanston, IL 60201, USA
    Radiology 250:236-45. 2009
  7. ncbi request reprint Off-resonance positive contrast imaging of a passive endomyocardial catheter in swine
    Rohan Dharmakumar
    Department of Radiology, Northwestern University, 737 N Michigan Ave, Suite 1616, Chicago, IL 60611, USA
    Phys Med Biol 53:N249-57. 2008
  8. doi request reprint Highly accelerated contrast-enhanced MR angiography: improved reconstruction accuracy and reduced noise amplification with complex subtraction
    Ioannis Koktzoglou
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois 60201, USA
    Magn Reson Med 64:1843-8. 2010
  9. doi request reprint STAR and STARFIRE for flow-dependent and flow-independent noncontrast carotid angiography
    Ioannis Koktzoglou
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    Magn Reson Med 61:117-24. 2009
  10. 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

Detail Information

Publications32

  1. ncbi request reprint Submillimeter isotropic resolution carotid wall MRI with swallowing compensation: imaging results and semiautomated wall morphometry
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 25:815-23. 2007
    ..6-mm isotropic spatial resolution, and its utility for semiautomated carotid wall morphometry...
  2. ncbi request reprint Diffusion-prepared segmented steady-state free precession: Application to 3D black-blood cardiovascular magnetic resonance of the thoracic aorta and carotid artery walls
    Ioannis Koktzoglou
    Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, USA
    J Cardiovasc Magn Reson 9:33-42. 2007
    ..1 +/- 1.9 vs. 3.1 +/- 0.5; p < 0.001). Diffusion-prepared segmented SSFP is a promising vessel wall CMR sequence that allows for 3D acquisition of thin and contiguous slices with BB image contrast...
  3. ncbi request reprint Three-dimensional black-blood MR imaging of carotid arteries with segmented steady-state free precession: initial experience
    Ioannis Koktzoglou
    Department of Radiology, Division of Vascular Surgery, Northwestern University, Chicago, IL 60611, USA
    Radiology 243:220-8. 2007
    ..05). Segmented 3D DIR-prepared SSFP enables black-blood carotid arterial wall MR imaging with contiguous thin-section coverage and greater imaging speed and effective CNR than conventional 2D fast SE techniques...
  4. ncbi request reprint Multislice dark-blood carotid artery wall imaging: a 1.5 T and 3.0 T comparison
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University, Chicago, Illinois 60611, USA
    J Magn Reson Imaging 23:699-705. 2006
    ..To compare two multislice turbo spin-echo (TSE) carotid artery wall imaging techniques at 1.5 T and 3.0 T, and to investigate the feasibility of higher spatial resolution carotid artery wall imaging at 3.0 T...
  5. pmc Peripheral arterial disease in a symptomatic diabetic population: prospective comparison of rapid unenhanced MR angiography (MRA) with contrast-enhanced MRA
    Philip A Hodnett
    Department of Radiology, NorthShore University Healthsystem, Evanston Hospital, IL 60201, USA
    AJR Am J Roentgenol 197:1466-73. 2011
    ....
  6. doi request reprint Unenhanced flow-independent MR venography by using signal targeting alternative radiofrequency and flow-independent relaxation enhancement
    Robert R Edelman
    Department of Radiology, Evanston Northwestern Healthcare, 2650 Ridge Ave, Evanston, IL 60201, USA
    Radiology 250:236-45. 2009
    ..The results demonstrate the clinical feasibility of STARFIRE to depict the deep and superficial venous systems of the lower extremities, and suggest the need for addition clinical evaluation...
  7. ncbi request reprint Off-resonance positive contrast imaging of a passive endomyocardial catheter in swine
    Rohan Dharmakumar
    Department of Radiology, Northwestern University, 737 N Michigan Ave, Suite 1616, Chicago, IL 60611, USA
    Phys Med Biol 53:N249-57. 2008
    ..9 in LV myocardium). The findings show that off-resonance imaging with the FLAPS method may be used for passive device visualization with positive contrast. Further studies are necessary prior to clinical translation...
  8. doi request reprint Highly accelerated contrast-enhanced MR angiography: improved reconstruction accuracy and reduced noise amplification with complex subtraction
    Ioannis Koktzoglou
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois 60201, USA
    Magn Reson Med 64:1843-8. 2010
    ....
  9. doi request reprint STAR and STARFIRE for flow-dependent and flow-independent noncontrast carotid angiography
    Ioannis Koktzoglou
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    Magn Reson Med 61:117-24. 2009
    ..Both methods were found to provide more detailed depiction of the carotid arteries than the alternative noncontrast MRA technique of time-of-flight (TOF) angiography...
  10. 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...
  11. ncbi request reprint Evaluating peripheral arterial disease with unenhanced quiescent-interval single-shot MR angiography at 3 T
    Parag Amin
    1 Department of Radiology, Northwestern Memorial Hospital, 737 N Michigan Ave, Ste 1600, Chicago, IL 60611
    AJR Am J Roentgenol 202:886-93. 2014
    ..The objective of our study was to assess the diagnostic performance of quiescent-interval single-shot (QISS) MR angiography (MRA) at 3 T for the evaluation of chronic lower limb ischemia...
  12. 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
    ....
  13. doi request reprint 4D Dark blood arterial wall magnetic resonance imaging: methodology and demonstration in the carotid arteries
    Ioannis Koktzoglou
    Department of Radiology, NorthShore University Healthsystem, Evanston, IL60201, USA
    Magn Reson Med 69:956-65. 2013
    ....
  14. doi request reprint Fully automated reconstruction of ungated ghost magnetic resonance angiograms
    Sotirios A Tsaftaris
    Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60208, USA
    J Magn Reson Imaging 31:655-62. 2010
    ..To completely automate the reconstruction process during noncardiac-gated unenhanced ghost magnetic resonance angiography (MRA)...
  15. ncbi request reprint Cerebral venography using fluid-suppressed STARFIRE
    Robert R Edelman
    Department of Radiology, NorthShore University Health System, Evanston, Illinois, USA
    Magn Reson Med 62:538-43. 2009
    ..Further investigation will be required to determine the accuracy for cerebral venous thrombosis...
  16. ncbi request reprint Factors influencing fast low angle positive contrast steady-state free precession (FLAPS) magnetic resonance imaging
    Rohan Dharmakumar
    Department of Radiology, Northwestern University, Chicago, IL, USA
    Phys Med Biol 52:3261-73. 2007
    ....
  17. ncbi request reprint Rapid whole-brain magnetic resonance imaging with isotropic resolution at 3 Tesla
    Robert R Edelman
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, IL 60201, USA
    Invest Radiol 44:54-9. 2009
    ..Although further clinical study is needed in a larger patient cohort, these initial results suggest substantial clinical promise for the technique...
  18. doi request reprint Fast projective carotid MR angiography using arterial spin-labeled balanced SSFP
    Ioannis Koktzoglou
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 28:778-82. 2008
    ..To determine whether pulsed arterial spin-labeled (pulsed ASL) balanced steady-state free precession (bSSFP) imaging allows for rapid projective depiction of the carotid arteries without electrocardiographic (ECG) gating...
  19. ncbi request reprint Dark-blood MRI of the thoracic aorta with 3D diffusion-prepared steady-state free precession: initial clinical evaluation
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University Feinberg School of Medicine, 448 E Ontario St, Suite 700, Chicago, IL 60611, USA
    AJR Am J Roentgenol 189:966-72. 2007
    ..The purpose of this study was to compare the performance of 3D diffusion-prepared balanced steady-state free precession (SSFP) imaging with that of 3D contrast-enhanced MR angiography in evaluation of the thoracic aorta...
  20. ncbi request reprint Dephased FLAPS for improved visualization of susceptibility-shifted passive devices for real-time interventional MRI
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University, Suite 700, 448 E Ontario St, Chicago, IL 60611, USA
    Phys Med Biol 52:N277-86. 2007
    ..In comparison to FLAPS imaging, results demonstrate that dFLAPS imaging of thick, projection-like slices improves the contrast of susceptibility-shifted devices relative to background signal with no increase in acquisition time...
  21. pmc Prospective self-gated nonenhanced magnetic resonance angiography of the peripheral arteries
    Erik J Offerman
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois, USA
    Magn Reson Med 69:158-62. 2013
    ..05). Image quality with pulse gating was inferior...
  22. doi request reprint Nonenhanced extracranial carotid MR angiography using arterial spin labeling: improved performance with pseudocontinuous tagging
    Ioannis Koktzoglou
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 34:384-94. 2011
    ..To compare pulsed arterial spin labeling (PASL) and pseudocontinuous arterial spin labeling (PCASL) for nonenhanced extracranial carotid MR angiography (MRA)...
  23. pmc Sub-millimeter isotropic MRI for segmentation of subcortical brain regions and brain visualization
    Ying Wu
    Radiology Department, NorthShore University Healthsystem, Pritzker School of Medicine, The University of Chicago, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 31:980-6. 2010
    ....
  24. pmc Nonenhanced methods for lower-extremity MRA: a phantom study examining the effects of stenosis and pathologic flow waveforms at 1.5T
    Erik J Offerman
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 33:401-8. 2011
    ..5t...
  25. pmc Optimization of single shot 3D breath-hold non-enhanced MR angiography of the renal arteries
    Huan Tan
    Department of Radiology, NorthShore University Healthsystem, 2650 Ridge Avenue, Evanston, IL 60201, USA
    J Cardiovasc Magn Reson 14:30. 2012
    ..A single-shot 3D magnetization-prepared steady-state free precession technique was implemented to allow the full extent of the renal arteries to be depicted within a single breath-hold...
  26. doi request reprint Ghost magnetic resonance angiography
    Ioannis Koktzoglou
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois 60201, USA
    Magn Reson Med 61:1515-9. 2009
    ..Moreover, unlike alternative unenhanced methods, Ghost MRA can be acquired without the need for cardiac synchronization...
  27. ncbi request reprint Dual-contrast cellular magnetic resonance imaging
    Rohan Dharmakumar
    Department of Radiology, Northwestern University, Chicago, IL, USA
    Mol Imaging 8:254-63. 2009
    ..The technique substantially improves the ability of MRI for detecting labeled cells by overcoming the fundamental limits that currently plague negative contrast methods...
  28. doi request reprint Gray blood magnetic resonance for carotid wall imaging and visualization of deep-seated and superficial vascular calcifications
    Ioannis Koktzoglou
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois 60201, USA
    Magn Reson Med 70:75-85. 2013
    ..Taken together, presented data demonstrate that gray and dual blood contrast magnetic resonance imaging provide an efficient means for viewing and characterizing the composition of atherosclerotic plaques...
  29. ncbi request reprint Generating positive contrast from off-resonant spins with steady-state free precession magnetic resonance imaging: theory and proof-of-principle experiments
    Rohan Dharmakumar
    Department of Radiology, Northwestern University, Suite 700, 448 E Ontario St, Chicago, IL 60611, USA
    Phys Med Biol 51:4201-15. 2006
    ..Among practical applications, we anticipate that the proposed technique can potentially facilitate high field magnetic-resonance-based molecular imaging...
  30. doi request reprint Functional MRI of liver using BOLD MRI: effect of glucose
    Muhammad Haque
    Department of Radiology, NorthShore University Healthsystem, Evanston, Illinois, USA
    J Magn Reson Imaging 32:988-91. 2010
    ..We hypothesized that during hyperglycemia, liver stores the glucose and consequently there is a reduction in oxygen consumption, which can be detected using BOLD MRI...
  31. ncbi request reprint Coronary artery wall imaging: initial experience at 3 Tesla
    Ioannis Koktzoglou
    Departments of Radiology and Biomedical Engineering, Northwestern University, Chicago, Illinois, USA
    J Magn Reson Imaging 21:128-32. 2005
    ..To assess the feasibility of black-blood turbo spin-echo imaging of the left anterior descending coronary artery wall at 3 Tesla under free-breathing and breath-hold conditions...
  32. ncbi request reprint Gadofluorine-enhanced magnetic resonance imaging of carotid atherosclerosis in Yucatan miniswine
    Ioannis Koktzoglou
    Department of Radiology, Northwestern University, Chicago, IL 60611, USA
    Invest Radiol 41:299-304. 2006
    ..The aim of this study was to determine whether gadofluorine, a paramagnetic magnetic resonance imaging (MRI) contrast agent, selectively enhances carotid atherosclerotic plaques in Yucatan miniswine...