Standing Equine PET Now In Use At UC Davis

UC Davis has welcomed the latest standing equine PET scanner, the MILEPET, into clinical use, less than six years after performing the world's first PET scan on a horse.

Thanks to funding support from the UC Davis Center for Equine Health and the Stronach Group, the UC Davis veterinary hospital recently installed the most recent MILEPET. After the installation of the first scanner at Santa Anita Park racetrack, a second scanner was set up on the East Coast at the University of Pennsylvania. This newest instrument at UC Davis will provide the most innovative equine imaging technique using only standing sedation to the Northern California horse population.

Since the first equine PET scan was performed at UC Davis in 2015, there have been many other “firsts” as the team, led by Dr. Mathieu Spriet, worked to develop the use of the technique to improve detection of injuries in equine limbs. The   s were performed two years ago, removing the need for horses to undergo general anesthesia during imaging. Subsequently, our group validated the first scanner designed specifically to image horses prior to its installation at Santa Anita in Southern California. This scanner has now been used for over 200 studies at the racetrack, contributing to reducing the number of catastrophic injuries in racehorses.

For the past five years, the UC Davis veterinary hospital's robust equine clinical program has imaged over 100 horses, but until recently, all of these scans were performed with the piPET, a scanner originally developed to image the human brain. This program accomplished several milestones in the development of equine PET, establishing applications not only for racehorse safety, but also for diagnosis of bone and soft tissue injuries in sport horses and improved understanding of laminitis. The clinical use of the technique was limited due to the requirement to anesthetize horses, which increases costs and risks associated with the procedure.

The initial clinical case utilizing the new scanner at the UC Davis veterinary hospital was another first, a mule named Jool. She was the first patient included in a clinical trial aimed at combining standing PET with standing MRI to provide the most advanced imaging for foot lameness in horses (or mules).

In addition, a second standing PET study is underway, aimed at assessing the progression of laminitis. Laminitis is an extremely debilitating disease that can unfortunately be fatal. Laminitic patients require long-term, careful hoof care performed by an experienced farrier. UC Davis veterinary hospital farrier Shane Westman has a long list of these challenging patients. In order to manage the trimming and shoeing optimally, Westman relies on imaging techniques. In a pilot study performed on laminitic cases at UC Davis, PET demonstrated its value in precisely assessing the involvement of the soft tissues of the foot with laminitis. As PET now becomes available using simple sedation, it simplifies the use of the technique and allows for repeated scans every time a patient comes for shoeing and trimming.

In addition to these two specific clinical research studies, standing PET is now available to any equine patient in Northern California. Standing PET can image any area of the limb from the foot to the carpus (knee) or tarsus (hock).

The racehorse population of Golden Gate Fields racetrack will also benefit from the new PET scanner. As the technique has quickly gained in popularity at Santa Anita Park, a few Northern California racehorses have traveled south to be imaged with PET. Now these horses won't need to travel so far. In addition to being in operation at UC Davis, the MILEPET scanner will soon be transported on a weekly basis to image horses at the equine hospital at Golden Gate Fields.

Dr. Spriet was very enthusiastic about these latest developments in the UC Davis equine PET program, “The standing PET scanner will allow us to offer this cutting-edge modality to more cases than we could before. Repeating scans on the same patient will help us optimize treatment and rehabilitation for better outcomes.”

“Through support from our donors and endowments, we have been able to support the equine PET program at UC Davis since 2016 by providing both research and equipment support,” said Dr. Carrie Finno, director of the UC Davis Center for Equine Health. “It is incredibly rewarding to see this technology now being used to prevent catastrophic injuries in racehorses across California.”

More horses, and mules, will be scanned in the near future!

Read more here.

The post Standing Equine PET Now In Use At UC Davis appeared first on Horse Racing News | Paulick Report.

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Can Foals With Septic Arthritis Go On To Successful Racing Careers?

Drs. Thomas O'Brien, Sarah Rosanowski, Keith Mitchell, Joan Carrick, Troy Butt and Angus Adkins completed a retrospective study of 114 Thoroughbred foals that had septic arthritis and compared them to their maternal siblings.

Foals involved with the study had undergone treatments for septic arthritis over a 6-year period. These treatments included arthroscopic, cannulae or through-and-through needle lavage. The stifle joint was the most affected (35 percent of foals), with hocks (20 percent affected) not far behind.

In total, 130 synovial fluid samples were cultured; bacterial growth was detected in 80 percent of samples. Thirty-nine of the foals needed repeat lavage of the synovial joint structure to clear the infection.

Overall, 90 foals were discharged alive (78 percent). Foals that were less than 26 days old when they were admitted were five times less likely to be discharged alive. Foals that were also afflicted with multisystemic disease were six times less likely to be discharged alive.

The researchers found that 67 percent of foals discharged alive started in one or more races; there was no difference in the proportion of foals that started or in racing performance between foals that had been treated for septic arthritis and their maternal siblings.

The scientists conclude that the prognosis for the survival of foals with septic arthritis is good and that future racing performance does not seem to be affected by this infection.

Read the published piece here.

Read more at EquiManagement.

The post Can Foals With Septic Arthritis Go On To Successful Racing Careers? appeared first on Horse Racing News | Paulick Report.

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