Department Chair, Department of Cancer Systems Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX

Professor, Department of Cancer Systems Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX

Executive Director, Quantitative Imaging Analysis Core (QIAC), Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX

Gerald Dewey Dodd, Jr., Endowed Distinguished Chair in Diagnostic Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX

Professor, Department of Cancer Biology, Division of Basic Science Research, The University of Texas MD Anderson Cancer Center, Houston, TX

Professor, Department of Bioengineering, Rice University, Houston, TX

1987-1988 Fellow, Magnetic Resonance Imaging, Harvard Medical School, Brigham and Women's Hospital, Boston, MA

1986-1987 Chief Resident, Diagnostic Radiology, Harvard Medical School and Brigham and Women's Hospital, Boston, MA

1984-1984 Postdoctoral Research Fellow, Physiology, Duke University Medical Center, Durham, NC

1984-1986 Residency, Diagnostic Radiology, Harvard Medical School and Brigham and Women's Hospital, Boston, MA

Graduate Faculty, Division of Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, TX, 2013 - Present

Professor, Division of Cell Biology & Physiology, Washington University Medical School, St. Louis, MO, 2010 - 2013

Professor, Division of Developmental Biology, Washington University Medical School, St. Louis, MO, 2008 - 2013

Professor, Division of Radiology, Washington University Medical School, St. Louis, MO, 1998 - 2013

Professor, Division of Molecular Biology & Pharmacology (2008, department renamed), Washington University Medical School, St. Louis, MO, 1998 - 2008

Deputy Division Head, Department of Research Affairs, The University of Texas MD Anderson Cancer Center, Houston, TX, 2013 - 2021