Lee Friedman

Summary

Country: USA

Publications

  1. ncbi request reprint Report on a multicenter fMRI quality assurance protocol
    Lee Friedman
    Department of Psychiatry, University of California Irvine, Irvine, California, USA
    J Magn Reson Imaging 23:827-39. 2006
  2. pmc Chronic smoking and the BOLD response to a visual activation task and a breath hold task in patients with schizophrenia and healthy controls
    Lee Friedman
    PO Box 51, Newbury, OH 44065, USA
    Neuroimage 40:1181-94. 2008
  3. ncbi request reprint Reducing inter-scanner variability of activation in a multicenter fMRI study: role of smoothness equalization
    Lee Friedman
    Department of Psychiatry and Human Behavior, University of California Irvine, CA 92617, USA
    Neuroimage 32:1656-68. 2006
  4. ncbi request reprint Reducing interscanner variability of activation in a multicenter fMRI study: controlling for signal-to-fluctuation-noise-ratio (SFNR) differences
    Lee Friedman
    Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, CA 92617, USA
    Neuroimage 33:471-81. 2006
  5. pmc Test-retest and between-site reliability in a multicenter fMRI study
    Lee Friedman
    Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, USA
    Hum Brain Mapp 29:958-72. 2008
  6. ncbi request reprint Increased presence of white matter hyperintensities in adolescent patients with bipolar disorder
    Jay J Pillai
    Department of Radiology, Division of Neuroradiology, The Medical College of Georgia, 1120 15th Street, Augusta, GA 30912, USA
    Psychiatry Res 114:51-6. 2002
  7. pmc Measurement of Signal-to-Noise and Contrast-to-Noise in the fBIRN Multicenter Imaging Study
    Vincent A Magnotta
    Department of Radiology, University of Iowa, 0453 D JCP, Iowa City, IA 52242, USA
    J Digit Imaging 19:140-7. 2006

Detail Information

Publications7

  1. ncbi request reprint Report on a multicenter fMRI quality assurance protocol
    Lee Friedman
    Department of Psychiatry, University of California Irvine, Irvine, California, USA
    J Magn Reson Imaging 23:827-39. 2006
    ..Based on the findings reported herein, the authors are convinced that monitoring QA in this way will improve the quality of fMRI data...
  2. pmc Chronic smoking and the BOLD response to a visual activation task and a breath hold task in patients with schizophrenia and healthy controls
    Lee Friedman
    PO Box 51, Newbury, OH 44065, USA
    Neuroimage 40:1181-94. 2008
    ....
  3. ncbi request reprint Reducing inter-scanner variability of activation in a multicenter fMRI study: role of smoothness equalization
    Lee Friedman
    Department of Psychiatry and Human Behavior, University of California Irvine, CA 92617, USA
    Neuroimage 32:1656-68. 2006
    ..This work highlights the need to account for differences in smoothness when comparing scanners on activation effect size in multicenter fMRI studies...
  4. ncbi request reprint Reducing interscanner variability of activation in a multicenter fMRI study: controlling for signal-to-fluctuation-noise-ratio (SFNR) differences
    Lee Friedman
    Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, CA 92617, USA
    Neuroimage 33:471-81. 2006
    ..Thus, controlling for scanner variation in SFNR may be an effective method to homogenize activation effect sizes in multicenter studies...
  5. pmc Test-retest and between-site reliability in a multicenter fMRI study
    Lee Friedman
    Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, USA
    Hum Brain Mapp 29:958-72. 2008
    ..These findings should provide guidance toothers on the best practices for future multicenter studies...
  6. ncbi request reprint Increased presence of white matter hyperintensities in adolescent patients with bipolar disorder
    Jay J Pillai
    Department of Radiology, Division of Neuroradiology, The Medical College of Georgia, 1120 15th Street, Augusta, GA 30912, USA
    Psychiatry Res 114:51-6. 2002
    ..The association between WMH and bipolar disorder appears to extend to the adolescent years...
  7. pmc Measurement of Signal-to-Noise and Contrast-to-Noise in the fBIRN Multicenter Imaging Study
    Vincent A Magnotta
    Department of Radiology, University of Iowa, 0453 D JCP, Iowa City, IA 52242, USA
    J Digit Imaging 19:140-7. 2006
    ..5-108.7 at 3 T and 50.8 at 4 T). Similar results were obtained for CNR measurements between gray/white matter at 1.5 T (9.5-10.2), again increasing at higher fields (10.1-28.9 at 3 T and 10.9 at 4 T)...