Faculty / Staff
Eric Johnson, DVM, DACVR (Interim Chief of Service)
Johnson is a Clinical Assistant Professor of Diagnostic Imaging. He trained as a student and resident at UC Davis. His special interests include diagnostic ultrasound and imaging of lymphatic pathways.
Rachel Pollard DVM, PhD, DACVR
Dr. Pollard attended the University of Washington in Seattle for her undergraduate work and Washington State University for her Doctorate of Veterinary Medicine. She then moved to New York for a one-year internship at the Animal Medical Center. Dr. Pollard then came to UC Davis and completed a four-year residency in Diagnostic Imaging. She then completed a PhD in Comparative Pathology and joined the faculty in April 2005 and is an Associate Professor of Diagnostic Imaging. Her areas of research focus primarily on quantitative imaging techniques using both contrast enhanced computed tomography and contrast enhanced ultrasound to evaluate tumor blood flow. Additionally, she has a clinical interest in dynamic imaging techniques such as contrast fluoroscopy for the diagnosis of swallowing disorders.
Mathieu Spriet, DVM, MS, DACVR, DECVDI
Dr. Spriet received his DVM from the National Veterinary School of Lyon, France, in 2002. He then completed an internship in equine medicine and surgery as well as a Master's Degree at the University of Montreal, Quebec, Canada. He joined the University of Pennsylvania in 2004 for a diagnostic imaging residency. In 2007, Dr. Spriet became a diplomate of both the American College of Veterinary Radiology and European College of Veterinary Diagnostic Imaging. That same year, he was appointed as an Assistant Professor of clinical diagnostic imaging at the UC Davis, School of Veterinary Medicine. His clinical interests are in equine advanced diagnostic imaging, including magnetic resonance imaging, computed tomography and nuclear scintigraphy.
Erik Wisner, DVM, DACVR
Dr. Wisner received his DVM from UC Davis in 1983. Following five years in mixed practice he returned to UC Davis and completed a radiology residency and became board certified in the American College of Veterinary Radiology in 1991. He held a joint faculty appointment with the UC Davis Schools of Veterinary Medicine and Medicine from 1992-1997. He served as head of radiology at the Ohio State College of Veterinary Medicine from 1997 until 2000 at which time he returned to UC Davis. Dr. Wisner is currently a professor of diagnostic imaging and Chair of the Department of Surgical and Radiological Sciences at the UC Davis School of Veterinary Medicine. His clinical interests are in computed tomography and magnetic resonance imaging. In addition to clinical, research and instructional duties, he is an Associate Hospital Director for Imaging Services in the VMTH and is a past president of the American College of Veterinary Radiology.
Allison Zwingenberger, DVM, DACVR, DECVDI
Dr. Zwingenberger received her DVM degree from the University of Guelph in 1995. She completed a rotating internship at the University of Georgia in 1997, followed by 5 years in small animal and mixed practice. Dr. Zwingenberger completed her residency in diagnostic imaging at the University of Pennsylvania in 2004, where she remained as a lecturer for an additional year. Dr. Zwingenberger joined the faculty in 2005 and is an Associate Professor of Diagnostic Imaging. Her research interests include CT angiography of portosystemic shunts and targeted cancer imaging. Dr. Zwingenberger's clinical interests are in small animal diagnostics and cross-sectional imaging.
Britany Lindl Bylicki
Roxie Zalunardo - Service Coordinator, Sr. Hospital Medical Transcriptionist
Melody Ann Passmore - Sr. Hospital Medical Transcriptionist