F Graham Sommer

Summary

Affiliation: Stanford University
Country: USA

Publications

  1. ncbi request reprint Can single-kidney glomerular filtration rate be determined with contrast-enhanced CT?
    F Graham Sommer
    Department of Radiology, Stanford University Medical Center, 300 Pasteur Dr, H 1307, Stanford, CA 94305 5105, USA
    Radiology 242:325-6. 2007
  2. doi request reprint Applicators for magnetic resonance-guided ultrasonic ablation of benign prostatic hyperplasia
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
    Invest Radiol 48:387-94. 2013
  3. ncbi request reprint Determination of 3-dimensional zonal renal volumes using contrast-enhanced computed tomography
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, Stanford, CA 94305 5105, USA
    J Comput Assist Tomogr 31:209-13. 2007
  4. ncbi request reprint Measurement of renal extraction fraction using contrast-enhanced computed tomography
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, Stanford, California 94305, USA
    Med Phys 31:37-8. 2004
  5. ncbi request reprint Estimation of renal extraction fraction based on postcontrast venous and arterial differential T1 values: an error analysis
    Yakir S Levin
    Department of Electrical Engineering, Stanford University, Stanford, California, USA
    Magn Reson Med 54:309-16. 2005
  6. ncbi request reprint Noninvasive measurement of extraction fraction and single-kidney glomerular filtration rate with MR imaging in swine with surgically created renal arterial stenoses
    Curtis H Coulam
    Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, H 1307, Stanford, CA 94305, USA
    Radiology 223:76-82. 2002
  7. ncbi request reprint Evaluation of renal growth by magnetic resonance imaging and computerized tomography volumes
    Roman Heuer
    Department of Urology, Stanford University School of Medicine, California 94305, USA
    J Urol 170:1659-63; discussion 1663. 2003
  8. pmc Referenceless MR thermometry for monitoring thermal ablation in the prostate
    Viola Rieke
    Radiological Sciences Laboratory, Department of Radiology, Stanford University, Stanford, CA 94305, USA
    IEEE Trans Med Imaging 26:813-21. 2007
  9. doi request reprint Monitoring prostate thermal therapy with diffusion-weighted MRI
    Jing Chen
    Department of Electrical Engineering, Stanford University, Stanford, California 94305 5488, USA
    Magn Reson Med 59:1365-72. 2008
  10. ncbi request reprint Referenceless PRF shift thermometry
    Viola Rieke
    Department of Radiology, Stanford University, Stanford, California 94305 5488, USA
    Magn Reson Med 51:1223-31. 2004

Research Grants

Collaborators

Detail Information

Publications19

  1. ncbi request reprint Can single-kidney glomerular filtration rate be determined with contrast-enhanced CT?
    F Graham Sommer
    Department of Radiology, Stanford University Medical Center, 300 Pasteur Dr, H 1307, Stanford, CA 94305 5105, USA
    Radiology 242:325-6. 2007
    ..The findings hold promise that noninvasive in vivo assessment of single-kidney renal function may be achieved in patients...
  2. doi request reprint Applicators for magnetic resonance-guided ultrasonic ablation of benign prostatic hyperplasia
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
    Invest Radiol 48:387-94. 2013
    ....
  3. ncbi request reprint Determination of 3-dimensional zonal renal volumes using contrast-enhanced computed tomography
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, Stanford, CA 94305 5105, USA
    J Comput Assist Tomogr 31:209-13. 2007
    ..To determine the accuracy with which total and cortical renal volumes may be measured in vivo with contrast-enhanced computed tomography (CT) in an animal model...
  4. ncbi request reprint Measurement of renal extraction fraction using contrast-enhanced computed tomography
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, Stanford, California 94305, USA
    Med Phys 31:37-8. 2004
    ..6% and 12.3% for the right and left kidneys, respectively, compared to the accepted value of 15%-20%. EF measurement using CT may provide noninvasive evaluation of renal function, complementing CT-derived morphologic information...
  5. ncbi request reprint Estimation of renal extraction fraction based on postcontrast venous and arterial differential T1 values: an error analysis
    Yakir S Levin
    Department of Electrical Engineering, Stanford University, Stanford, California, USA
    Magn Reson Med 54:309-16. 2005
    ..Because of limitations on measurement accuracy and precision, this method appears to be impractical at this time...
  6. ncbi request reprint Noninvasive measurement of extraction fraction and single-kidney glomerular filtration rate with MR imaging in swine with surgically created renal arterial stenoses
    Curtis H Coulam
    Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, H 1307, Stanford, CA 94305, USA
    Radiology 223:76-82. 2002
    ....
  7. ncbi request reprint Evaluation of renal growth by magnetic resonance imaging and computerized tomography volumes
    Roman Heuer
    Department of Urology, Stanford University School of Medicine, California 94305, USA
    J Urol 170:1659-63; discussion 1663. 2003
    ..We examined whether normative renal growth curves could be constructed from data derived from these imaging modalities, and from these curves assessed normal and abnormal renal development...
  8. pmc Referenceless MR thermometry for monitoring thermal ablation in the prostate
    Viola Rieke
    Radiological Sciences Laboratory, Department of Radiology, Stanford University, Stanford, CA 94305, USA
    IEEE Trans Med Imaging 26:813-21. 2007
    ..The method is demonstrated feasibile in phantoms and during in vivo thermal ablation of canine prostate...
  9. doi request reprint Monitoring prostate thermal therapy with diffusion-weighted MRI
    Jing Chen
    Department of Electrical Engineering, Stanford University, Stanford, California 94305 5488, USA
    Magn Reson Med 59:1365-72. 2008
    ..This study shows that DWI could be a promising method to monitor prostate thermal therapies and to provide insight on tissue damage and tissue remodeling after injury...
  10. ncbi request reprint Referenceless PRF shift thermometry
    Viola Rieke
    Department of Radiology, Stanford University, Stanford, California 94305 5488, USA
    Magn Reson Med 51:1223-31. 2004
    ..A good correlation between temperature maps reconstructed with the referenceless and subtraction methods was found...
  11. ncbi request reprint Rapid measurement of renal artery blood flow with ungated spiral phase-contrast MRI
    Jong B Park
    Magnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA
    J Magn Reson Imaging 21:590-5. 2005
    ..To verify the potential of ungated spiral phase-contrast (USPC), which has been shown to provide accurate and reproducible time-averaged measurements of pulsatile flow, for rapid measurement of renal artery blood flow (RABF) in vivo...
  12. ncbi request reprint Magnetic resonance-guided high-intensity ultrasound ablation of the prostate
    Kim Butts Pauly
    Department of Radiology, Stanford University, Stanford, CA 94305 5488, USA
    Top Magn Reson Imaging 17:195-207. 2006
    ..This paper describes our work in developing techniques and devices for magnetic resonance (MR)-guided high-intensity ultrasound ablation of the prostate and includes review of relevant literature...
  13. ncbi request reprint Measurement of renal extraction fraction with contrast-enhanced CT
    Graham Sommer
    Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, Rm H1307, Stanford, CA 94305, USA
    Radiology 236:1029-33. 2005
    ..3% and 18.0%, respectively, for two observers, compared with the accepted value of 15%-20%. This latter technique also minimized right-left kidney and interobserver variability in the measurement of EF...
  14. ncbi request reprint Single breath-hold diffusion-weighted imaging of the abdomen
    Lawrence C Chow
    Department of Radiology, Stanford University Medical Center, Stanford, California 94305, USA
    J Magn Reson Imaging 18:377-82. 2003
    ..To generate high quality diffusion-weighted images (DWI) and corresponding isotropic ADC maps of the abdomen with full organ (kidneys) coverage in a single breath-hold...
  15. ncbi request reprint Can low-dose unenhanced multidetector CT be used for routine evaluation of suspected renal colic?
    Douglas S Katz
    Department of Radiology, Winthrop University Hospital, 259 First St, Mineola, NY 11501, USA
    AJR Am J Roentgenol 180:313-5. 2003
  16. ncbi request reprint Measurement of renal volumes with contrast-enhanced MRI
    Curtis H Coulam
    Department of Radiology, Stanford University School of Medicine, Stanford, California 94205, USA
    J Magn Reson Imaging 15:174-9. 2002
    ..To determine the accuracy of in vivo magnetic resonance imaging (MRI) measurement of total renal parenchymal volume and medullary fraction. MATERIALS and..
  17. ncbi request reprint Value of curved planar reformations in MDCT of abdominal pathology
    Terry S Desser
    Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, Mail Code 5621, Stanford, CA 94305, USA
    AJR Am J Roentgenol 182:1477-84. 2004
  18. ncbi request reprint Split-bolus MDCT urography with synchronous nephrographic and excretory phase enhancement
    Lawrence C Chow
    Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
    AJR Am J Roentgenol 189:314-22. 2007
    ..Our purpose was to evaluate the utility of CT urography performed using a split contrast bolus that yields synchronous nephrographic and excretory phase enhancement...
  19. pmc Evaluation of dynamic contrast-enhanced MRI in detecting renal scarring in a rat injury model
    Bingyin Wang
    Department of Urology, Stanford University School of Medicine, Stanford, California, USA
    J Magn Reson Imaging 31:1132-6. 2010
    ..To create a reliable rat model with small renal cortical scars and evaluate the accuracy and sensitivity of dynamic contrast-enhanced MRI in detecting the kinds of lesions that are associated with reflux nephropathy...

Research Grants13

  1. Precise MRI-Directed Sonic Ablation of Prostate Cancer
    Frank Sommer; Fiscal Year: 2007
    ..At the completion of this work, we plan to have completely defined an integrated system suitable for clinical ablation of prostatic tissue and prostate cancer. ..
  2. MRI OF RENAL ANATOMY AND FUNCTION IN CHRONIC ISCHEMIA
    Frank Sommer; Fiscal Year: 2002
    ..The utility of the comprehensive exam will be determined by correlating pre- intervention MRI-determined parameters with both clinical outcome measures and post-intervention MRI-determined parameters. ..
  3. PRECISE MRI DIRECTED SONIC ABLATION OF PROSTATE CANCER
    Frank Sommer; Fiscal Year: 2002
    ....
  4. Precise MRI-Directed Sonic Ablation of Prostate Cancer
    FRANK GRAHAM SOMMER; Fiscal Year: 2010
    ..test an integrated system for the controlled ablation of prostate cancer using transurethral devices delivering high-intensity ultrasound to the prostate, directed by MRI thermal imaging, and incorporating rectal and urethral cooling ..