Mary Ann Keenan, DMP, DABR, earned her MS and Doctorate in Medical Physics from Vanderbilt University School of Medicine. Dr. Keenan is an Assistant Professor of Radiology and Radiological Sciences. She joined the Vanderbilt faculty in 2005. She is a member of the American Association of Physicists in Medicine and the American College of Radiology, where she also actively participates in societal committees and panels.

Section: Radiological Sciences

Christopher S. Jones, MD, is a graduate of Pennsylvania State University and earned his medical degree from Drexel University College of Medicine. He completed a residencies in Diagnostic Radiology and Transitional/Internal Medicine at Albert Einstein Medical Center and a fellowship in Cross Sectional Imaging at Johns Hopkins Hospital. He joined the Vanderbilt faculty in 2018 as Assistant Professor of Clinical Radiology and Radiological Sciences, and he was appointed Section Chief of Body Imaging in 2019. Dr. Jones is a member of the American College of Radiology, American Roentgen Ray Society and the Radiological Society of North America.

Section: Abdominal Imaging

Xiaoyu Jiang, PhD, earned his undergraduate in Engineering Physics and his masters degree in Physics at Tsinghua University in Beijing, China and his PhD in Chemistry from Washington University in St. Louis, MO. He completed his postdoctoral training at Vanderbilt University Institute of Imaging Science (VUIIS), which focused on development, validation, and evaluation of advanced MRI techniques, including temporal diffusion spectroscopy imaging and quantitative magnetic transfer imaging, in preclinical and translational cancer imaging. He joined the Vanderbilt faculty in 2018 as Research Instructor in Radiology and Radiological Sciences. In 2022, he was promoted to Research Assistant Professor.

Section: Vanderbilt University Institute of Imaging Science

Reza Imani, MD, MS, is a graduate of the University of Iowa and earned his medical degree from the Howard University College of Medicine in Washington, D.C. He completed a residency in Diagnostic Radiology at Virginia Commonwealth University and a fellowship in Vascular Interventional Radiology at Vanderbilt University Medical Center (VUMC). Dr. Imani joined the Vanderbilt faculty in 2019. He is a member of the Society of Interventional Radiology, Radiological Society of North America, and the American College of Radiology. In 2023, after serving as Associate Program Director for the Integrated Interventional Radiology Residency program, he assumed the leadership position of Program Director.

Section: Interventional Radiology

After attending Indiana University for undergraduate education, Dr. Hoyt went to Indiana University School of Medicine for both medical school and diagnostic radiology residency. She came to Nashville for a Women's Imaging Fellowship at Vanderbilt University Medical Center, and stayed as faculty after completion. Dr. Hoyt divides her clinical time doing both breast imaging and ultrasound imaging.

Section: Breast and Women's Imaging

Melissa Hilmes, MD, is an honors graduate and earned her medical degree from Vanderbilt University School of Medicine. She completed a residency in Diagnostic Radiology at University of Michigan Medical Center, which she served as chief resident, and a fellowship in Pediatric Radiology at C.S. Mott Children’s Hospital. She joined the Vanderbilt faculty in 2007 as Assistant Professor following one year in private practice. In 2019, she was promoted to Associate Professor. In 2025, Dr. Hilmes was promoted to Professor of Radiology and Radiological Sciences.

Dr. Hilmes’s many academic interests include medical student education at multiple levels, including faculty leadership in the Vanderbilt Program for Interprofessional Learning (VPIL), serving as a portfolio coach and co-director, and serving as course director for an ACE in pediatric radiology, a course for students in the 3rd and 4th years. Dr. Hilmes previously directed the elective in pediatric radiology for pediatric residents and interested fellows, as well as graduate students in medical physics. Research interests include MR imaging characteristics of the pancreas in diabetic patients, which is partially grant-funded. More recently, she is involved with the PRISM study, a study of children with COVID and MIS-C. The study is sponsored and funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health. In 2023, she received a VUSM Faculty Award for Excellence in Teaching in the Small Group Setting. She has been a member of the Academy of Excellence in Education since 2020.

Section: Pediatric Radiology

Dr. Schulman came to the US from Cuba at 10 years of age. After learning English and spending one of her high school years in Spain¸ she entered Princeton University, where she earned an AB degree before entering medical school. Upon graduation, she completed a residency in Pediatrics and a second residency in Radiology, subsequently graduating from a two year fellowship in Pediatric Radiology from The Children’s Hospital Boston and Harvard Medical School.

During her years at Vanderbilt, she has given back to her institution and to the Pediatric Radiology Community. She has led the division of Pediatric Radiology to a multimodality, multispecialty pediatric service at the Monroe Carell Jr. Children’s Hospital at Vanderbilt, with a goal of excellence in service and family-centered care. That division now includes 11 pediatric radiologists, with pediatric subspecialty training in pediatric neuroradiology, pediatric nuclear medicine, pediatric interventional and pediatric musculoskeletal imaging.

She has written over 40 chapters and review articles and is a co-editor of the major text: Caffey’s Pediatric Diagnostic Imaging 11th, 12th and upcoming 13th editions. She has authored over 140 peer-reviewed articles, over 100 abstracts and presentations, and has mentored over 40 medical students, houseofficers and faculty, receiving several awards including the RSNA’s Best Research including a resident. Some of her pioneer work includes investigation potential etiologic findings and ultrasound of pyloric stenosis, investigation of the inhibition of phagocytosis by barium in the peritoneal cavity, for which she received the Caffey Award, the highest honor bestowed by the Society for Pediatric Radiology for scientific research and has been PI or Co-PI in 13 grants.

Nationally, Dr. Schulman has chaired or co-chaired many committees and has held office in national organizations. At the American College of Radiology (ACR) she has chaired the Ultrasound Committee, the Pediatric Section of the National In-Service examination, the Guidelines (now Parameters Committee) and the Pediatric Commission as a member of the ACR’s Board of Chancellors, as well as its Vice-President. She received the Presidential Recognition Award from the Society for Pediatric Radiology (SPR) for her work with the Pediatric Radiology journal, has been President and Chairman of the Board of the Society for Pediatric Radiology, and has been awarded its Gold Medal, its highest honor and recognition, for the work that she has done to improve the imaging care of children.

Dr. Schulman reviews for many scientific journals, has been a member of the Editorial Board of 'Radiology' and is currently a member of the editorial board of 'Pediatric Radiology.' She is a Fellow of the American College of Radiology and of the American Academy of Pediatrics. Among her many services to the American Board of Radiology, she has chaired the ABR’s Committee on the MOC examination in Pediatric Radiology, and has received the ABR’s Lifetime Service Award. She is a founding and current member of the Steering Committee of Image Gently, and led the Pause and Pulse Campaign for radiation protection in pediatric fluoroscopy, which was the recipient of the Aunt Minnie Award for best philanthropic campaign in 2011. In addition to the SPR, she has been a member or chaired the Pediatric Program Committees of the RSNA and ARRS over multiple cycles, and has delivered multiple invited lectures nationally and internationally.

Section: Pediatric Radiology

Sara Harvey, MD, is an honors graduate from the University of Memphis and earned her medical degree from the University of Tennessee. She completed a residency in Radiology at St. Luke’s-Roosevelt Hospital Center Columbia University College of Physicians and Surgeons and served as chief resident. Dr. Harvey completed a fellowship in Women’s Imaging at Vanderbilt University Medical Center. She joined the Vanderbilt faculty in 2010, and was promoted to Associate Professor in 2020.

Section: Breast and Women's Imaging

Bryan Hartley, M.D., earned his medical degree from Vanderbilt University Medical Center and then completed residency in Diagnostic Radiology and subspecialty training with a fellowship in Vascular and Interventional Radiology also at Vanderbilt. In 2015 he received the America College of Radiology Gold-Merit Abstract Award. He is a member of the Radiological Society of North America and the Society of Interventional Radiology and his focus is on medical device development and innovation.

Section: Body Imaging