About Us

Lab Members

Daniel Costa, M.D.

Prostate Cancer. Dr. Costa is an abdominal imaging radiologist with expertise in prostate cancer imaging. Specific areas of interest include the role of multiparametric MR imaging in the early detection and characterization of prostate cancer; MRI-ultrasound targeted fusion biopsy of the prostate; registration of histopathologic images with in vivo MRI data; and MRI-guided prostate cancer focal therapy.

Alberto Diaz de Leon, M.D.

Interests-Research and Clinical:
MR Imaging; Quantitative Imaging; Genitourinary Imaging. Dr. Diaz de Leon is an abdominal radiologist with an interest in genitourinary imaging, particularly in the qualitative and quantitative assessment of renal masses, and technical development. His specific research focus is on CT/MR imaging of renal cell carcinoma and motion correction techniques in MRI.

David Fetzer, M.D.

Quantitative and Computational Imaging, Multimodality Imaging, Hepatic Fibrosis Quantification, and the Effects of Motion and Physiologic Processes on Quantitative Techniques Dr. Fetzer’s complementary background in the imaging sciences and interest in translational research constitute a foundation for his work in multimodality comparison and quantification, particularly in hepatobiliary, pancreatic, and thyroid imaging.

Gaurav Khatri, M.D.

Interests- Research and Clinical:
Hepatobiliary MRI, MR Defecography, MRI of Pelvic Floor Mesh, MR Enterography, and Gastrointestinal Oncology Dr. Khatri’s interest in hepatobiliary MRI stems from his fellowship work in liver MRI, as well as his current association with clinicians as part of the Hepatocellular Carcinoma and GI Malignancy disease-oriented teams. He helped launch the MR Enterography and MR Defecography programs at UT Southwestern and continues to work with clinicians and the body MRI faculty to research and improve MR imaging techniques and applications in those areas.

Takeshi Yokoo, M.D., Ph.D.

Interests- Research and Clinical:
MR Imaging, Spectroscopy, and Physics; Quantitative and computational Imaging; Liver Imaging; and Contrast Media Dr. Yokoo is an abdominal radiologist with interest and expertise in liver MR and image analysis/processing. His main research focus is on the development and validation of emerging quantitative MR imaging techniques, such as liver fat, iron, fibrosis, and inflammation.

Qing Yuan, Ph.D.

Interests-Research and Clinical:
Application of Advanced MRI and MRS Techniques in Clinical Studies, Quantitative Multiparametric MR Imaging for Cancer Research, Fat Quantification Using MRI and MRS, and Iron Overload Dr. Yuan’s research focus is to develop quantitative methods for dynamic contrast enhancement, diffusion, and Oxygen-Enhanced MRI. She works closely with radiologists, fellows, and technologists to improve clinical MRI protocols.