Veterinary Medical Imaging

PO BOX 874
LOOMIS, CA 95650


VMI Radiologists


Steve Harnagel, DVM:


  • BS degree in Zoology: University of California, Davis, 1976
  • DVM degree: UC Davis School of Veterinary Medicine, 1980
  • Radiology Residency: UC Davis School of Veterinary Medicine, 1984-1987
  • Diplomate, American College of Veterinary Radiology, 1987

Upon graduation from veterinary school in 1980, Dr. Harnagel practiced as part owner of a mixed practice in Lockeford, CA until 1984.  He returned to the UCD School of Veterinary Medicine as a house officer in radiology, completing a three year residency in 1987.  He established Veterinary Medical Imaging in 1987, serving the greater Sacramento area and Sacramento and San Joaquin Valleys.  Dr. Harnagel has special interests in ultrasound and general diagnostic radiology.  His interests outside of veterinary medicine include ranching and growing Syrah wine grapes, whitewater rafting, fly-fishing, photography, and woodworking.


Craig Long, DVM:


  • DVM degree: 1994, University of California, Davis
  • Residency: 1995-1999, University of California, Davis
  • American College of Veterinary Radiology Diplomate- 1998

Following a one-year associate veterinarian position in general practice, Dr. Long returned to UC Davis to complete a four-year residency in radiology.  He joined the faculty at UC Davis as half time Clinical  Professor position from 1999 through 2005 and is still involved with the UCDavis with radiology resident training.  He has been an associate with VMI since 2000.  Dr. Long's areas of special interest include diagnostic ultrasound and interventional radiology.  His personal favorite activities include flying, kayaking, home improvement, and outdoor adventures with the family.


Eric Herrgesell, DVM:

Dr. Herrgesell completed his training in Veterinary Radiology in 1997 with the completion of the board certification exam and began as a member of the staff at the University of California Davis in the teaching hospital. While at the university Dr. Herrgesell was involved in the development of ultrasound as an elective course for the second and third year students in addition to clinical duty.  Since 2005 he has been in private practice in the greater Sacramento area providing radiology and ultrasound support for the area veterinarians.  He remains very involved with professional speaking conferences around the country and internationally.


Linda Mellema, DVM:

After graduation from UC Davis School of Veterinary Medicine, Dr. Mellema completed an internship in small animal medicine and surgery at Angell Animal Medical Center in Boston, Massachusetts.  Following a year in small animal private practice, she completed four-year residency in radiology at UC Davis and became board certified in veterinary radiology in 2000.  She spent seven years as a staff radiologist at Angell AMC in Boston.  She currently lives in Davis with her husband and two sons.


Abigail Dimock, DVM:


  • DVM degree: 2006, University of California, Davis
  • Residency: 2008-2012, University of California, Davis
  • Diplomate, American College of Veterinary Radiology: 2011

­­­Prior to beginning a diagnostic imaging residency, Dr. Dimock completed a one year internship and one year of general practice in Bend, Oregon.  After completion of the board certification exam and residency, Dr. Dimock remained at UC Davis as a part-time staff radiologist, primarily tasked with clinical duties and training of residents and senior students.  Dr. Dimock also joined Veterinary Medical Imaging at that time.  Dr. Dimock’s areas of special interest include advanced imaging (CT and MRI), abdominal ultrasound and equine imaging.  Her interests outside of veterinary medicine include hiking with her dog, horseback riding, caring for her small goat herd and traveling.


Britany Lindl Bylicki, DVM:

Dr. Lindl Bylicki is originally from Livermore, CA where her family currently resides. She received a BS from UC Santa Barbara and graduated with high honors in Biopsychology in 2005. She returned to Northern California to attend The School of Veterinary Medicine at UC Davis and graduated in 2010. After that, it was back to Southern California for a rotating small animal internship at the Veterinary Medical and Surgical Group in Ventura, CA. After a year at VMSG, she returned to UC Davis for a four-year residency in diagnostic imaging. Britany became a Diplomate of the American College of Veterinary Radiologist in 2014.

She is an author of several publications in the areas of carotid body tumors, the canine dorsal tracheal membrane, and chondro-osseous respiratory epithelial adenomatoid hamartomas. She serves as a peer reviewer for the Journal of the American Veterinary Medical Association.

She currently lives in Sacramento with her husband. They enjoy hiking and backpacking, snowboarding, and finding new beer to try. Britany is an active member of the River City Rowing Club’s Open Women’s team.


Michele Laurenson, DVM:

Dr. Laurenson obtained her bachelor’s degree from UC Davis in Biological Systems Engineering. She attended UC Davis School of Veterinary Medicine and after graduation completed a rotating internship at VMSG in Ventura, California. After a year of general practice, she completed a four-year radiology residency at UC Davis, and became board certified in 2010. She returned to VMSG and spent four years as a staff radiologist. She enjoys spending time with her husband and daughter.

Britton Nixon, DVM:  

Dr. Nixon is originally from Maui, HI. She received her BA from Smith College in MA in 2002. Dr. Nixon then pursued a career as a full time athlete on the US Women’s lightweight rowing team before returning to academics and attending Oregon State Veterinary College, graduating in 2014. Dr. Nixon then completed a rotating internship at North Caroline State University followed by a four year residency in diagnostic imaging at The School of Veterinary Medicine at UC Davis. She is the author of publications on elbow dysplasia, CT characteristic of Adrenal tumors, and MRI characteristic of equine cartilaginous lesions. She currently lives in Sacramento and enjoys mountain biking, climbing and camping. 


Amy Norvall:    

Dr. Amy Norvall left her native country, Zimbabwe, to attend Louisiana State University. She received her Bachelor of Science in 2008 and her Doctor of Veterinary Medicine in 2011. She went on to complete a one-year specialty equine sports medicine and imaging internship at Virginia Equine Imaging where she subsequently stayed on as a Senior Associate. In 2015 she moved to California to complete a four-year radiology residency at U.C. Davis. She became board-certified in 2018 and passed the inaugural ACVR – Equine Diagnostic Imaging certifying exam in 2019. She has a wide spectrum of diagnostic imaging interests. Outside of veterinary medicine, she and her husband enjoy participating in a range of outdoor activities.