The following MRI practice guidelines were developed by the AAVR for use by the veterinary community. These protocols were developed based on the experience of the MRI Practice Guidelines Team.

Recommended Canine Protocols:

Recommended Equine Protocols:


Meet Our Team

Seth Wallack DVM DACVR: Dr. Wallack received his veterinary degree and completed a four-year radiology residency at University of California, Davis. He is board certified in radiology and has special interests in MRI, small animal ultrasound and exotic animal radiography. He has published scientific articles specific for MRI and authored “The Handbook of Veterinary Contrast Radiography.” He has lectured on various topics, including MRI, emergency ultrasound, and radiography, in both regional and national meetings. His most recent projects include founding the AAVR, creating the Ultrasound in Emergency Situations Course (USES) for the AAVR, and developing the thyroid to background ratio for feline hyperthyroid therapy.

John Posh RT(R)(MR): John Posh is a professional imaging technologist with over 20 years experience in MRI operations, education, research, and management. He has been a consultant nationally and internationally on the design and operation of veterinary imaging facilities, MRI safety issues, and technologist training and education. He is currently the Director of the MRI Internship Program at the Hospital of the University of Pennsylvania.

Carter Judy DVM DACVS: Originally from Pasadena, California, Dr. Judy attended the University of California, San Diego for his undergraduate work in Animal Physiology and Neurosciences. He then attended the School of Veterinary Medicine at the University of California, Davis. After achieving his veterinary degree, he completed an internship in large animal medicine and surgery at Texas A&M University and a residency in equine surgery and performance evaluation at U.C. Davis. Having successfully completed the strenuous board accreditation process, Dr. Judy is a Diplomate of the American College of Veterinary Surgeons. Dr. Judy has joined the veterinary team at Alamo Pintado and now resides in the town of Ballard.

Travis Saveraid DVM DACVR: Dr. Saveraid received his Doctor of Veterinary Medicine degree from Iowa State University, following in the footsteps of his father and grandfather.  After practicing in Maine for two years, he completed a radiology residency at Washington State University where he acquired extensive training in equine and small animal MRI.  Following his residency, Dr. Saveraid was a clinical faculty member at the University of Minnesota, College of Veterinary Medicine, where he led development of the small animal and equine 3T MRI clinical imaging program. He currently works at the University of Zurich, Switzerland, and owns a diagnostic imaging consulting company, VetRadiologist, LLC.  Dr. Saveraid serves as a consulting radiologist in small animal and equine MR imaging for veterinary hospitals nationally and internationally. His email is This email address is being protected from spambots. You need JavaScript enabled to view it.

Bernard Walsh MVB, MRCVS, CVR, DACVR: Dr. Walsh graduated from the Veterinary College of Ireland, University College Dublin in 1987.  He was awarded a Certificate in Veterinary Radiology from the Royal College of Veterinary Surgeons in 1993. He subsequently completed a three-year radiology residency at the University of Pennyslvania, Philadelphia, to become a Diplomate of the American College of Veterinary Radiology in 1998. He has lectured in universities in the UK, the Caribbean and the US. Bernard is managing director of VETSCAN with which he continues to provide a cutting-edge diagnostic imaging service to companion animal vets in the southeast of the UK and via telemedicine the rest of the world.

Russell Tucker DVM DACVR: Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman



AAVR Veterinary Association for Veterinarians & Technicians

The AAVR offers free and fee based educational information about veterinary imaging. Within the educational information, both unrelated and related company products may be mentioned and/or paid advertising may be displayed. Companies related directly to the AAVR through ownership or member participation are,, San Diego Veterinary Imaging and the Veterinary Imaging Center of San Diego, Inc. The AAVR and ACVR are separate, independent companies.