S S Vasanawala

Summary

Affiliation: Stanford University
Country: USA

Publications

  1. ncbi request reprint Prospective MR signal-based cardiac triggering
    S S Vasanawala
    Department of Electrical Engineering, Stanford University, CA 94305 9510, USA
    Magn Reson Med 42:82-6. 1999
  2. pmc Combined respiratory and cardiac triggering improves blood pool contrast-enhanced pediatric cardiovascular MRI
    Shreyas S Vasanawala
    Department of Radiology, Stanford University School of Medicine, Lucile Packard Children s Hospital, 725 Welch Road, Room 1679, Stanford, CA 94305 5913, USA
    Pediatr Radiol 41:1536-44. 2011
  3. doi request reprint Volumetric fat-water separated T2-weighted MRI
    Shreyas S Vasanawala
    Department of Radiology, Stanford University, Lucile Packard Children s Hospital, Palo Alto, CA 94304, USA
    Pediatr Radiol 41:875-83. 2011
  4. pmc A method of rapid robust respiratory synchronization for MRI
    Shreyas S Vasanawala
    LPCH Department of Radiology, 725 Welch Road, Stanford, CA 94305, USA
    Pediatr Radiol 40:1690-2. 2010
  5. pmc Improved pediatric MR imaging with compressed sensing
    Shreyas S Vasanawala
    Department of Pediatric Radiology, Stanford University School of Medicine, 725 Welch Rd, Room 1679, Stanford, CA 94305 5913, USA
    Radiology 256:607-16. 2010
  6. doi request reprint MRI of the liver--how to do it
    Shreyas S Vasanawala
    Lucile Packard Children s Hospital, Stanford University School of Medicine, 725 Welch Road, Stanford, CA 94305, USA
    Pediatr Radiol 40:431-7. 2010
  7. pmc Navigated abdominal T1-W MRI permits free-breathing image acquisition with less motion artifact
    Shreyas S Vasanawala
    Department of Radiology, Lucile Packard Children s Hospital, Stanford University, Stanford, CA 94305 5913, USA
    Pediatr Radiol 40:340-4. 2010
  8. doi request reprint MR voiding cystography for evaluation of vesicoureteral reflux
    Shreyas S Vasanawala
    Department of Radiology, Lucile Packard Children s Hospital and Stanford University, 725 Welch Road, Stanford, CA 94305 5654, USA
    AJR Am J Roentgenol 192:W206-11. 2009
  9. ncbi request reprint Value of delayed imaging in MDCT of the abdomen and pelvis
    Shreyas S Vasanawala
    Department of Radiology, Stanford University, 300 Pasteur Dr, Stanford, CA 94305 5105, USA
    AJR Am J Roentgenol 187:154-63. 2006
  10. pmc Advances in pediatric body MRI
    Shreyas S Vasanawala
    Department of Radiology, Lucile Packard Children s Hospital, Stanford University, 725 Welch Road, Palo Alto, CA 94304, USA
    Pediatr Radiol 41:549-54. 2011

Research Grants

  1. Rapid Robust Pediatric MRI
    Shreyas S Vasanawala; Fiscal Year: 2010

Detail Information

Publications24

  1. ncbi request reprint Prospective MR signal-based cardiac triggering
    S S Vasanawala
    Department of Electrical Engineering, Stanford University, CA 94305 9510, USA
    Magn Reson Med 42:82-6. 1999
    ..The technique is demonstrated with coronary artery imaging using both conventional two-dimensional Fourier transform scans and spiral trajectories...
  2. pmc Combined respiratory and cardiac triggering improves blood pool contrast-enhanced pediatric cardiovascular MRI
    Shreyas S Vasanawala
    Department of Radiology, Stanford University School of Medicine, Lucile Packard Children s Hospital, 725 Welch Road, Room 1679, Stanford, CA 94305 5913, USA
    Pediatr Radiol 41:1536-44. 2011
    ..Contrast-enhanced cardiac MRA suffers from cardiac motion artifacts and often requires a breath-hold...
  3. doi request reprint Volumetric fat-water separated T2-weighted MRI
    Shreyas S Vasanawala
    Department of Radiology, Stanford University, Lucile Packard Children s Hospital, Palo Alto, CA 94304, USA
    Pediatr Radiol 41:875-83. 2011
    ..Volumetric T2 imaging with Dixon-type fat-water separation might address this challenge, but it is a lengthy process...
  4. pmc A method of rapid robust respiratory synchronization for MRI
    Shreyas S Vasanawala
    LPCH Department of Radiology, 725 Welch Road, Stanford, CA 94305, USA
    Pediatr Radiol 40:1690-2. 2010
    ..Respiratory motion degrades MRI exams. Adequate detection of respiratory motion with pneumatic respiratory belts in small children is challenging and time-consuming...
  5. pmc Improved pediatric MR imaging with compressed sensing
    Shreyas S Vasanawala
    Department of Pediatric Radiology, Stanford University School of Medicine, 725 Welch Rd, Room 1679, Stanford, CA 94305 5913, USA
    Radiology 256:607-16. 2010
    ..To develop a method that combines parallel imaging and compressed sensing to enable faster and/or higher spatial resolution magnetic resonance (MR) imaging and show its feasibility in a pediatric clinical setting...
  6. doi request reprint MRI of the liver--how to do it
    Shreyas S Vasanawala
    Lucile Packard Children s Hospital, Stanford University School of Medicine, 725 Welch Road, Stanford, CA 94305, USA
    Pediatr Radiol 40:431-7. 2010
    ..When performed well, MRI provides superior diagnostic information relative to CT for evaluation of hepatic tumors, liver transplants, and biliary disease...
  7. pmc Navigated abdominal T1-W MRI permits free-breathing image acquisition with less motion artifact
    Shreyas S Vasanawala
    Department of Radiology, Lucile Packard Children s Hospital, Stanford University, Stanford, CA 94305 5913, USA
    Pediatr Radiol 40:340-4. 2010
    ..This work demonstrates the feasibility and potential utility of navigation for pediatric abdominal T1-W imaging...
  8. doi request reprint MR voiding cystography for evaluation of vesicoureteral reflux
    Shreyas S Vasanawala
    Department of Radiology, Lucile Packard Children s Hospital and Stanford University, 725 Welch Road, Stanford, CA 94305 5654, USA
    AJR Am J Roentgenol 192:W206-11. 2009
    ..CONCLUSION: MR voiding cystography with a real-time interactive MR fluoroscopic technique on an open MRI magnet is feasible for the evaluation of VUR in children...
  9. ncbi request reprint Value of delayed imaging in MDCT of the abdomen and pelvis
    Shreyas S Vasanawala
    Department of Radiology, Stanford University, 300 Pasteur Dr, Stanford, CA 94305 5105, USA
    AJR Am J Roentgenol 187:154-63. 2006
    ..OBJECTIVE: Our objective was to illustrate the benefits of obtaining delayed CT images. CONCLUSION: There are several clinical scenarios in which delayed CT images may improve diagnostic specificity...
  10. pmc Advances in pediatric body MRI
    Shreyas S Vasanawala
    Department of Radiology, Lucile Packard Children s Hospital, Stanford University, 725 Welch Road, Palo Alto, CA 94304, USA
    Pediatr Radiol 41:549-54. 2011
    ..This article reviews developments in pediatric body MRI that might reduce these barriers: high field systems, acceleration, navigation and newer contrast agents...
  11. ncbi request reprint Fluctuating equilibrium MRI
    S S Vasanawala
    Magnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305 9510, USA
    Magn Reson Med 42:876-83. 1999
    ..A technique for combining lipid and water images generated with this sequence for angiography is described and other potential applications are suggested. Magn Reson Med 42:876-883, 1999...
  12. ncbi request reprint Rapid musculoskeletal MRI with phase-sensitive steady-state free precession: comparison with routine knee MRI
    Shreyas S Vasanawala
    Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, Stanford, CA 94305 5105, USA
    AJR Am J Roentgenol 184:1450-5. 2005
    ..The aim of this work was to show the potential utility of a novel rapid 3D fat-suppressed MRI method for joint imaging...
  13. ncbi request reprint Linear combination steady-state free precession MRI
    S S Vasanawala
    Department of Electrical Engineering, Stanford University, California, USA
    Magn Reson Med 43:82-90. 2000
    ..Several potential applications of the technique, referred to as linear combination steady-state free precession (LCSSFP), are demonstrated: fast musculoskeletal, abdominal, angiographic, and brain imaging...
  14. ncbi request reprint Accommodation of requests for emergency US and CT: applications of queueing theory to scheduling of urgent studies
    Shreyas S Vasanawala
    Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305 5105, USA
    Radiology 235:244-9. 2005
    ..US rescheduling was near that predicted. CT rescheduling exceeded that predicted, which reflected increasing CT use. By using more recent CT data for prediction, a more concordant rescheduling rate resulted...
  15. ncbi request reprint Dual-acquisition phase-sensitive fat-water separation using balanced steady-state free precession
    Brian A Hargreaves
    Department of Radiology, Stanford University, Stanford, CA 94305 5488, USA
    Magn Reson Imaging 24:113-22. 2006
    ..Finally, dual-acquisition phase-sensitive SSFP can be combined with other magnetization preparation schemes to produce specific image contrast in addition to separating fat and water signals...
  16. ncbi request reprint Comparison of new sequences for high-resolution cartilage imaging
    Brian A Hargreaves
    Department of Electrical Engineering, Magnetic Resonance Systems Research Laboratory, Stanford University, Stanford, CA 94305 9510, USA
    Magn Reson Med 49:700-9. 2003
    ..Additionally, these methods markedly decrease minimum scan times, while providing 3D coverage without the characteristic blurring seen in fast spin-echo images...
  17. doi request reprint State-of-the-art in pediatric body and musculoskeletal magnetic resonance imaging
    John D MacKenzie
    Division of Pediatric Radiology, Lucile Packard Children s Hospital, Stanford University, Palo Alto, CA 94304, USA
    Semin Ultrasound CT MR 31:86-99. 2010
    ..Given the increasing saliency of concerns regarding ionizing radiation from computed tomography, these advances could not be more welcome...
  18. ncbi request reprint Fat-suppressed steady-state free precession imaging using phase detection
    Brian A Hargreaves
    Department of Electrical Engineering, Stanford University, Stanford, California 94305 9510, USA
    Magn Reson Med 50:210-3. 2003
    ..This phase difference can be used for fat-water separation in SSFP without any increase in scan time. The technique is shown to produce excellent non-contrast-enhanced, flow-independent angiograms of the peripheral vasculature...
  19. ncbi request reprint Analysis of multiple-acquisition SSFP
    Neal K Bangerter
    Department of Electrical Engineering, Stanford University, Stanford, California, USA
    Magn Reson Med 51:1038-47. 2004
    ..The sum-of-squares SSFP technique (SOS-SSFP) delivers both robust banding artifact reduction and higher SNR efficiency than other multiple-acquisition techniques, while preserving SSFP contrast...
  20. doi request reprint Advances in pediatric MR imaging
    John D MacKenzie
    Pediatric Radiology, Lucile Packard Children s Hospital, Stanford University, 725 Welch Road, Palo Alto, CA 94304, USA
    Magn Reson Imaging Clin N Am 16:385-402, v. 2008
    ..Several future directions in the field of pediatric body and musculoskeletal imaging also are highlighted...
  21. ncbi request reprint Balanced SSFP imaging of the musculoskeletal system
    Garry E Gold
    Department of Radiology, Stanford University, Stanford, California, USA
    J Magn Reson Imaging 25:270-8. 2007
    ..Sensitivity to fluid and fat suppression are important issues in these techniques to improve delineation of cartilage contours, for detection of marrow edema and derangement of other joint structures...
  22. ncbi request reprint Articular cartilage of the knee: evaluation with fluctuating equilibrium MR imaging--initial experience in healthy volunteers
    Garry E Gold
    Department of Radiology, Stanford University, 300 Pasteur Dr, SO 68B, Stanford, CA 94305 5105, USA
    Radiology 238:712-8. 2006
    ..04). Cartilage volume measurements with fluctuating equilibrium and 3D SPGR were similar. Fluctuating equilibrium MR imaging is a promising method for evaluating articular cartilage in the knee...
  23. ncbi request reprint Characterization and reduction of the transient response in steady-state MR imaging
    B A Hargreaves
    Magnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, CA 94305 9510, USA
    Magn Reson Med 46:149-58. 2001
    ..Although the second stage of the method exhibits some sensitivity to B(1) variations, our results show that the transient time can be significantly reduced, allowing imaging in a shorter total scan time. Magn Reson Med 46:149-158, 2001...
  24. ncbi request reprint Controversies in protocol selection in the imaging of articular cartilage
    Garry E Gold
    Department of Radiology, Stanford University, Stanford, California 94305, USA
    Semin Musculoskelet Radiol 9:161-72. 2005
    ..However, many of these methods remain to be tested in the clinical setting. Protocol selection for cartilage imaging requires understanding of the patient population and the advantages and limitations of these techniques...

Research Grants1

  1. Rapid Robust Pediatric MRI
    Shreyas S Vasanawala; Fiscal Year: 2010
    ....