P V Prasad

Summary

Affiliation: Evanston Northwestern Healthcare
Country: USA

Publications

  1. ncbi Delayed gadolinium-enhanced magnetic resonance imaging of cartilage in knee osteoarthritis: findings at different radiographic stages of disease and relationship to malalignment
    Ashley Williams
    Beth Israel Deaconess Medical Center and Harvard Medical School, 4 Blackfan Circle, Boston, MA 02115, USA
    Arthritis Rheum 52:3528-35. 2005
  2. pmc Kidneys in hypertensive rats show reduced response to nitric oxide synthase inhibition as evaluated by BOLD MRI
    Luping Li
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 17:671-5. 2003
  3. ncbi Evaluation of intra-renal oxygenation by BOLD MRI
    Pottumarthi V Prasad
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Ill 60201, USA
    Nephron Clin Pract 103:c58-65. 2006
  4. pmc Changes in intrarenal oxygenation as evaluated by BOLD MRI in a rat kidney model for radiocontrast nephropathy
    P V Prasad
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 13:744-7. 2001
  5. pmc Functional MRI of the kidney: tools for translational studies of pathophysiology of renal disease
    Pottumarthi V Prasad
    Dept of Radiology, Walgreen Jr Bldg, Suite 507, Evanston Northwestern Healthcare, 2650 Ridge Ave, Evanston, IL 60201, USA
    Am J Physiol Renal Physiol 290:F958-74. 2006
  6. ncbi Captopril MR renography in a swine model: toward a comprehensive evaluation of renal arterial stenosis
    P V Prasad
    Departments of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Radiology 217:813-8. 2000
  7. ncbi Quantitative assessment of pulmonary perfusion with dynamic contrast-enhanced MRI
    H Hatabu
    Department of Radiology, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA 02215, USA
    Magn Reson Med 42:1033-8. 1999
  8. ncbi Pulmonary ventilation: dynamic MRI with inhalation of molecular oxygen
    H Hatabu
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Eur J Radiol 37:172-8. 2001
  9. ncbi Protective effect of aminophylline on renal perfusion changes induced by high-energy shockwaves identified by Gd-DTPA-enhanced first-pass perfusion MRI
    A J Chan
    Division of Urology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
    J Endourol 14:117-21. 2000
  10. ncbi Noninvasive evaluation of intrarenal oxygenation with BOLD MRI
    P V Prasad
    Department of Radiology and Medicine, Beth Israel Hospital, Boston, MA 02215, USA
    Circulation 94:3271-5. 1996

Collaborators

Detail Information

Publications45

  1. ncbi Delayed gadolinium-enhanced magnetic resonance imaging of cartilage in knee osteoarthritis: findings at different radiographic stages of disease and relationship to malalignment
    Ashley Williams
    Beth Israel Deaconess Medical Center and Harvard Medical School, 4 Blackfan Circle, Boston, MA 02115, USA
    Arthritis Rheum 52:3528-35. 2005
    ....
  2. pmc Kidneys in hypertensive rats show reduced response to nitric oxide synthase inhibition as evaluated by BOLD MRI
    Luping Li
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 17:671-5. 2003
    ..We hypothesized that the magnitude of the change would be reduced in the kidneys of hypertensive subjects relative to normal controls...
  3. ncbi Evaluation of intra-renal oxygenation by BOLD MRI
    Pottumarthi V Prasad
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Ill 60201, USA
    Nephron Clin Pract 103:c58-65. 2006
    ..Availability of a non-invasive technique such as BOLD MRI should allow for better understanding of the factors involved in the maintenance of renal oxygenation status, not only in animal models, but also in humans...
  4. pmc Changes in intrarenal oxygenation as evaluated by BOLD MRI in a rat kidney model for radiocontrast nephropathy
    P V Prasad
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 13:744-7. 2001
    ..BOLD MRI can noninvasively evaluate changes in medullary oxygenation in rats that appear to predispose acute renal failure. J. Magn. Reson. Imaging 2001;13:744-747...
  5. pmc Functional MRI of the kidney: tools for translational studies of pathophysiology of renal disease
    Pottumarthi V Prasad
    Dept of Radiology, Walgreen Jr Bldg, Suite 507, Evanston Northwestern Healthcare, 2650 Ridge Ave, Evanston, IL 60201, USA
    Am J Physiol Renal Physiol 290:F958-74. 2006
    ..In this article, we review the state-of-the-art functional MRI technique as applied to the kidneys...
  6. ncbi Captopril MR renography in a swine model: toward a comprehensive evaluation of renal arterial stenosis
    P V Prasad
    Departments of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Radiology 217:813-8. 2000
    ..To test the feasibility of captopril magnetic resonance (MR) renography and to validate the technique in an animal model of renal arterial stenosis...
  7. ncbi Quantitative assessment of pulmonary perfusion with dynamic contrast-enhanced MRI
    H Hatabu
    Department of Radiology, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA 02215, USA
    Magn Reson Med 42:1033-8. 1999
    ..This study demonstrates that MR has the potential to evaluate pulmonary perfusion quantitatively. Magn Reson Med 42:1033-1038, 1999...
  8. ncbi Pulmonary ventilation: dynamic MRI with inhalation of molecular oxygen
    H Hatabu
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Eur J Radiol 37:172-8. 2001
    ....
  9. ncbi Protective effect of aminophylline on renal perfusion changes induced by high-energy shockwaves identified by Gd-DTPA-enhanced first-pass perfusion MRI
    A J Chan
    Division of Urology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
    J Endourol 14:117-21. 2000
    ..In addition, the renoprotective effect of intravenous aminophylline was evaluated on the perfusion on kidneys undergoing SWL...
  10. ncbi Noninvasive evaluation of intrarenal oxygenation with BOLD MRI
    P V Prasad
    Department of Radiology and Medicine, Beth Israel Hospital, Boston, MA 02215, USA
    Circulation 94:3271-5. 1996
    ....
  11. ncbi Noninvasive pulmonary perfusion imaging by STAR-HASTE sequence
    H Hatabu
    Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
    Magn Reson Med 44:808-12. 2000
    ..Our initial results suggest that noninvasive evaluation of pulmonary perfusion by magnetic resonance imaging without administration of an exogenous agent is possible...
  12. ncbi Serial diffusion tensor imaging detects white matter changes that correlate with motor outcome in premature infants
    Alexander Drobyshevsky
    Department of Pediatrics, Evanston Northwestern Healthcare, Evanston, Ill 60201, USA
    Dev Neurosci 29:289-301. 2007
    ..A low value of FA at 30 weeks and a higher change of FA predicted less favorable motor outcome at 2 years and suggests that early subtle white matter injury can be detected in premature infants even without obvious signs of injury...
  13. ncbi Functional imaging of the kidneys with fast MRI techniques
    P V Prasad
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    Eur J Radiol 29:133-48. 1999
    ..We also introduce BOLD renal MRI, a method that may allow basic understanding of human renal physiology and pathophysiology in a way that has not been previously possible...
  14. ncbi MR ventilation-perfusion imaging of human lung using oxygen-enhanced and arterial spin labeling techniques
    V M Mai
    Department of Radiology, Evanston Northwestern Healthcare and Northwestern University, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 14:574-9. 2001
    ..This V/Q imaging scheme is completely noninvasive, does not involve ionized radiation, and shows promising potential for clinical use in the diagnosis of lung diseases such as pulmonary embolism...
  15. pmc Changes in renal medullary pO2 during water diuresis as evaluated by blood oxygenation level-dependent magnetic resonance imaging: effects of aging and cyclooxygenase inhibition
    P V Prasad
    Departments of Radiology and Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
    Kidney Int 55:294-8. 1999
    ..We used BOLD MRI to measure the effects of aging and of inhibiting prostaglandin synthetase on the renal response to water diuresis in healthy human subjects...
  16. ncbi Dynamic three-dimensional magnetic resonance abdominal angiography and perfusion: implementation and preliminary experience
    J W Goldfarb
    Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 11:201-7. 2000
    ..Feasibility is demonstrated in three healthy volunteers. The trade-offs among spatial resolution, temporal resolution, and spatial coverage as well as the technical aspects of gadolinium-enhanced pulse sequences are discussed...
  17. pmc Motor deficits are triggered by reperfusion-reoxygenation injury as diagnosed by MRI and by a mechanism involving oxidants
    Alexander Drobyshevsky
    Department of Pediatrics, NorthShore University Healthcare Research Institute, Evanston, Illinois 60201, USA
    J Neurosci 32:5500-9. 2012
    ..The etiological link between early injury and later motor deficits can thus be investigated by MRI, and allows us to distinguish between critical oxidative stress that causes motor deficits and noncritical oxidative stress that does not...
  18. pmc Evaluation of the reproducibility of intrarenal R2* and DeltaR2* measurements following administration of furosemide and during waterload
    Lu Ping Li
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 19:610-6. 2004
    ..To estimate the reproducibility of BOLD MRI measurements in the evaluation of intrarenal oxygenation levels...
  19. pmc Effect of free radical scavenger (tempol) on intrarenal oxygenation in hypertensive rats as evaluated by BOLD MRI
    Lu Ping Li
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois, USA
    J Magn Reson Imaging 21:245-8. 2005
    ..To demonstrate a differential response following administration of a free radical scavenger, tempol, in kidneys of hypertensive compared to normotensive rats...
  20. pmc Evaluation of intra-renal oxygenation during water diuresis: a time-resolved study using BOLD MRI
    S M Tumkur
    Biomedical Engineering Department, Northwestern University, Evanston, Illinois, USA
    Kidney Int 70:139-43. 2006
    ..056 1/(s min) vs without naproxen=0.25 1/(s min)). The observed effects of naproxen were consistent with previous findings with COX inhibition...
  21. ncbi Effect of nitric oxide synthase inhibition on intrarenal oxygenation as evaluated by blood oxygenation level-dependent magnetic resonance imaging
    Lu Ping Li
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, IL, USA
    Invest Radiol 44:67-73. 2009
    ....
  22. ncbi T1 efficacy of EVP-ABD: a potential manganese-based MR contrast agent for hepatic vascular and tissue phase imaging
    C S Zuo
    Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 16:668-75. 2002
    ..To evaluate the T1 efficacy of EVP-ABD, a new manganese (Mn)-based contrast agent, for vascular and liver tissue enhancement in comparison with currently approved agents...
  23. ncbi Proton nuclear magnetic resonance measurement of p-boronophenylalanine (BPA): a therapeutic agent for boron neutron capture therapy
    C S Zuo
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Med Phys 26:1230-6. 1999
    ..The study examines potential interferences, demonstrates a linear NMR signal response with concentration, and presents BPA NMR spectra in ex vivo blood samples and in vivo brain tissues...
  24. ncbi Magnetic resonance imaging in endourology
    A J Chan
    Division of Urology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    J Endourol 15:17-23. 2001
    ....
  25. ncbi dGEMRIC as a function of BMI
    C Tiderius
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA
    Osteoarthritis Cartilage 14:1091-7. 2006
    ..However, adipose tissue has lower extracellular water (ECW) than lean tissue. The aims of this study were to measure (1) plasma Gd-DTPA(2-) levels vs body mass index (BMI), and (2) dGEMRIC vs BMI after correcting for the dose-BMI effect...
  26. ncbi Fetal brain magnetic resonance imaging response acutely to hypoxia-ischemia predicts postnatal outcome
    Alexander Drobyshevsky
    Department of Pediatrics, Evanston Northwestern Healthcare and Northwestern University, Evanston, IL 60201, USA
    Ann Neurol 61:307-14. 2007
    ..Our objective was to examine whether the immediate response of the fetus to an acute H-I event determined the motor deficits associated with cerebral palsy...
  27. ncbi Three-dimensional delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) at 1.5T and 3.0T
    Charles A McKenzie
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    J Magn Reson Imaging 24:928-33. 2006
    ..5T and 3.0T...
  28. ncbi Evaluation of intrarenal oxygenation in mice by BOLD MRI on a 3.0T human whole-body scanner
    Lu Ping Li
    Center of Advanced Imaging, Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 25:635-8. 2007
    ..To extend observations on intra-renal oxygenation with blood oxygen level-dependent (BOLD) MRI in human and rats to mouse kidneys imaged with a human whole-body scanner...
  29. ncbi Computing oxygen-enhanced ventilation maps using correlation analysis
    Vu M Mai
    Department of Radiology, Evanston Hospital, Evanston Northwestern Healthcare, Illinois 60201, USA
    Magn Reson Med 49:591-4. 2003
    ..66 +/- 0.07 for the complete series and 0.75 +/- 0.08 for the selected series. It was concluded that correlation analysis could be used to reconstruct qualitative oxygen-enhanced ventilation maps...
  30. ncbi Renal artery stenosis in swine: feasibility of MR assessment of renal function during percutaneous transluminal angioplasty
    Jonathan K Park
    Department of Radiology, Northwestern University Feinberg School of Medicine, 448 E Ontario St, Suite 700, Chicago, IL 60611, USA
    Radiology 244:144-50. 2007
    ..To prospectively test--in a swine model of renal artery stenosis (RAS)--the hypothesis that magnetic resonance (MR) imaging can reveal changes in renal function at the time of percutaneous transluminal angioplasty (PTA)...
  31. ncbi Accuracy of T1 measurement with 3-D Look-Locker technique for dGEMRIC
    Wei Li
    Department of Radiology, Evanston Northwestern Healthcare and Northwestern University Feinberg School of Medicine, Evanston, IL 60201, USA
    J Magn Reson Imaging 27:678-82. 2008
    ....
  32. ncbi Functional magnetic resonance imaging of the kidney
    Pottumarthi V Prasad
    Department of Radiology, Evanston Northwestern Healthcare, IL, USA
    Methods Mol Med 124:197-224. 2006
    ..Three parameters, renal perfusion, filtration or excretory function, and oxygenation are reviewed in depth. Illustrative examples are provided and advantages discussed...
  33. ncbi Band artifacts due to bulk motion
    Pippa Storey
    Department of Radiology, MRI Research, Evanston Hospital, vanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    Magn Reson Med 48:1028-36. 2002
    ..The fact that the position of the bands changes with the phase-encoding direction suggests that they may be artifacts due to motion of the heart walls during the image acquisition period...
  34. ncbi Myocardial delayed enhancement imaging using inversion recovery single-shot steady-state free precession: initial experience
    Wei Li
    MRI Research, Department of Radiology, Evanston Hospital and Northwestern University Feinberg School of Medicine, 2650 Ridge Avenue, Evanston, IL 60201, USA
    J Magn Reson Imaging 20:327-30. 2004
    ....
  35. ncbi Dark flow artifacts with steady-state free precession cine MR technique: causes and implications for cardiac MR imaging
    Wei Li
    Evanston Hospital and Northwestern University Feinberg School of Medicine, 2650 Ridge Ave, Room 5108, Evanston, IL 60201, USA
    Radiology 230:569-75. 2004
    ..These artifacts appeared to be caused by spins moving within an inhomogeneous magnetic field...
  36. pmc Evaluation of intrarenal oxygenation by BOLD MRI at 3.0 T
    Lu Ping Li
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, Illinois 60201, USA
    J Magn Reson Imaging 20:901-4. 2004
    ..To examine the benefit of using higher field strengths for BOLD MRI to detect changes in renal medullary oxygenation following pharmacological maneuvers...
  37. 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...
  38. ncbi Feasibility of blood oxygenation level-dependent MR imaging to monitor hepatic transcatheter arterial embolization in rabbits
    Thomas K Rhee
    Department of Radiology, Northwestern University, Chicago, Illinois 60611, USA
    J Vasc Interv Radiol 16:1523-8. 2005
    ..The use of BOLD MR imaging to monitor changes in hepatic tumor oxygenation after embolization is feasible. These functional MR imaging measurements of hypoxia may be targeted as an endpoint for therapy in future studies...
  39. ncbi Simultaneous magnetic resonance gadolinium-enhanced 2D perfusion and 3D angiographic imaging
    James W Goldfarb
    Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Magn Reson Imaging 21:585-91. 2003
    ..No image artifacts were attributed to the technique. The combined information may be useful in detecting, as well as characterizing, vascular abnormalities...
  40. ncbi MR assessment of left ventricular function: quantitative comparison of fast imaging employing steady-state acquisition (FIESTA) with fast gradient echo cine technique
    Wei Li
    Evanston Hospital and Northwestern University Feinberg School of Medicine, Evanston, Illinois, USA
    J Magn Reson Imaging 16:559-64. 2002
    ..To evaluate the agreement of fast imaging employing steady-state acquisition (FIESTA) cine technique with segmented k-space fast gradient echo (GRE) cine technique when using them for assessment of cardiac function...
  41. ncbi Preliminary evaluation of EVP 1001-1: a new cardiac-specific magnetic resonance contrast agent with kinetics suitable for steady-state imaging of the ischemic heart
    Pippa Storey
    Department of Radiology, Evanston Northwestern Healthcare, Evanston, IL, USA
    Invest Radiol 38:642-52. 2003
    ..To investigate the potential of a novel manganese-based magnetic resonance (MR) contrast agent, EVP 1001-1 for the evaluation of myocardial ischemia...
  42. ncbi Full-limb and knee radiography assessments of varus-valgus alignment and their relationship to osteoarthritis disease features by magnetic resonance imaging
    Sakeba N Issa
    Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
    Arthritis Rheum 57:398-406. 2007
    ....
  43. ncbi Magnetic resonance imaging of myocardial infarction using a manganese-based contrast agent (EVP 1001-1): preliminary results in a dog model
    Pippa Storey
    Radiology Department, Evanston Northwestern Healthcare, Evanston, Illinois, USA
    J Magn Reson Imaging 23:228-34. 2006
    ..To investigate the MRI characteristics of an intracellular manganese-based contrast agent, EVP 1001-1 (Eagle Vision Pharmaceutical Corp.), in a canine model of myocardial infarction...
  44. ncbi Effect of diabetes on renal medullary oxygenation during water diuresis
    Franklin H Epstein
    Department of Medicine, Beth Israel Deaconess Medical Center, Joslin Diabetes Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Diabetes Care 25:575-8. 2002
    ..To study the effect of water diuresis on renal medullary and cortical oxygenation in patients with diabetes using blood oxygenation level--dependent magnetic resonance imaging (BOLD MRI)...
  45. pmc Evaluation of intrarenal oxygenation at 3.0 T using 3-dimensional multiple gradient-recalled echo sequence
    Santosh Tumkur
    Biomedical Engineering Department, Northwestern University, Evanston, Illinois, USA
    Invest Radiol 41:181-4. 2006
    ..The objective of this study was to validate quantitation of R2* and DeltaR2* measurements obtained with a 3-dimensional (3-D) multiple gradient-recalled echo (mGRE) sequence for evaluating intrarenal oxygenation in humans...