Imaging

Authors: Jean-Michel Vandeweerd, Nathalie Kirschvink, Benoit Muylkens, Celine Cintas, Charles Vande Catsyne, Fanny Hontoir, Peter Clegg, Richard Coomer and Jean-Francois Nisolle
Journal: Veterinary Surgery

Abstract
Objective

To describe magnetic resonance imaging (MRI) anatomy of the ovine stifle and investigate meniscotibial and cruciate ligaments anatomy.
Study Design

Descriptive ex vivo study.
Animals

Pelvic limbs (n = 44) from 22 adult Texel ewes.
Methods

Forty limbs (n = 40) were scanned using 3 Tesla MRI before gross anatomic dissection. Two other limb pairs were frozen and transected to obtain sections that were compared with MRI images for identification of anatomic structures.
Results

Category: Imaging - Ruminant
Authors: Tatiana Figueiredo, Bruna Dzyekanski, Cláudia T. Pimpão, Andressa B. Silveira, Luiz G. Capriglione, Pedro Vicente Michelotto Jr.
Journal: Journal of Equine Veterinary Science

Athletic horses often experience painful conditions of the musculoskeletal system, but their ability to compete can be prolonged using certain anesthetic agents. The present study investigated the ability of thermography to detect fetlock and middle carpal intrasynovial injections of bupivacaine hydrochloride in five mares. Saline injections were performed in the contralateral limbs. Thermographic evaluation was conducted at the dorsal and palmar aspects before (basal) and 15, 30, 60, 90, 120, and 1440 minutes after injection.

Authors: Pablo Espinosa, DVM; Mathieu Lacourt, DVM; Kate Alexander, DMV, MS, DACVR; Florent David, DVM, MSC, DACVS; Sheila Laverty, MVB, DACVS
Journal: Journal of the American Veterinary Medical Association

Objective—To identify the prevalence of fragmentation of the proximal tubercle of the talus (FPTT) in a hospital population of horses, characterize the anatomic features of the affected area and fragments, and describe clinical findings, diagnosis, treatment, and outcome for horses with FPTT.

Design—Retrospective case series.

Animals—9 horses with FPTT.

Authors: Dennis M. Meagher, DVM, PhD, DACVS; Julia L. Bromberek, MSPH; Daniel T. Meagher, DVM, MS, DACVS; Ian A. Gardner, BVSC, MPVM, PhD; Sarah M. Puchalski, DVM, DACVR; Susan M. Stover, DVM, PhD, DACVS
Journal: Journal of the American Veterinary Medical Association

Objective—To estimate the prevalence of radiographic abnormalities (lesions) in Thoroughbred racehorses at 2-year-old in-training sales and determine whether these lesions and 1-furlong presale workout times were associated with subsequent racing performance.

Design—Retrospective cohort study.

Animals—953 Thoroughbreds.

Authors: Francesca Beccati, Heather J. Chalmers, Sara Dante, Eleonora Lotto and Marco Pepe
Journal: Veterinary Radiology and Ultrasound

Osteochondrosis lesions commonly occur on the femoral trochlear ridges in horses and radiography and ultrasonography are routinely used to diagnose these lesions. However, poor correlation has been found between radiographic and arthroscopic findings of affected trochlear ridges. Interobserver agreement for ultrasonographic diagnoses and correlation between ultrasonographic and arthroscopic findings have not been previously described.

Authors: Ann Carstens, Robert M. Kirberger, Leif E. Dahlberg, Leon Prozesky, Lizelle Fletcher and Eveliina Lammentausta
Journal: Veterinary Radiology and Ultrasound

The purpose of this study was to determine whether delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) and T2 mapping are accurate techniques for measuring cartilage thickness in the metacarpus3/metatarsus3 (Mc3/Mt3) of Thoroughbred racehorses. Twenty-four Mc3/Mt3 cadaver specimens were acquired from six healthy racehorses.

Category: Cartilage - Equine - Imaging - MRI
Authors: MS Hall, JR Vasey, JW Russell, T Russell
Journal: Australian Veterinary Journal

Objective
To evaluate the racing performance of horses that underwent ultrasound-guided intralesional injection of autologous bone marrow aspirate for treatment of selected forelimb suspensory ligament (body or branch) core lesions.
Design
Retrospective cohort study of 13 Standardbred and 17 Thoroughbred race horses.
Methods
Autologous bone marrow aspirated from the sternebrae was injected, under ultrasound guidance, into suspensory ligament core lesions (body or branch). Racing records were reviewed for a comparison of performance before and after surgery.
Results

Authors: Julien Olive, DMV, MSc; Thibault Vila, DMV; Nicolas Serraud, DMV
Journal: American Journal of Veterinary Research

Objective—To compare navicular bone marrow lesion (BML) conspicuity in the feet of horses as determined via 2 fat-suppressed MRI techniques, including standard short tau inversion recovery (STIR) and inversion recovery gradient echo (IRGE).

Sample—Feet (n = 150) of horses with lameness referable to the distal portion of the digit.

Category: Bone - Equine - Imaging - MRI
Authors: Simone Westermann, Heinz H. F. Buchner, Johannes P. Schramel, Alexander Tichy, Christian Stanek
Journal: Journal of the American Veterinary Medical Association

Objective—To assess effects of camera angle and distance on measurement and reproducibility of thermographically determined temperatures of the distolateral aspect of the forelimbs in horses.

Design—Evaluation study.

Animals—10 adult horses.

Category: Equine - Imaging
Authors: Amanda M. Arens, Sarah M. Puchalski, Mary Beth Whitcomb, Robin Bell, Ian A. Gardner, Susan M. Stover
Journal: Journal of the American Veterinary Medical Association

Objective—To define scintigraphic, physical examination, and scapular ultrasonographic findings consistent with bone fragility syndrome (BFS) in horses; develop indices of BFS severity; and assess accuracy of physical examination, scapular ultrasonography, and serum biomarkers for BFS diagnosis.

Design—Prospective case-control study.

Animals—48 horses (20 horses with BFS and 28 control horses).