Imaging

Authors: Jonathan D. C. Anderson, BVM&S; Larry D. Galuppo, DVM, DACVS; Bradd C. Barr, DVM, DACVP; Sarah M. Puchalski, DVM, DACVR; Melinda
Journal: Journal of the American Veterinary Medical Association

Objective—To describe clinical and scintigraphic abnormalities in horses with a bone fragility disorder. Design—Retrospective case series. Animals—16 horses with scintigraphic evidence of multiple sites of increased radiopharmaceutical uptake (IRU). Procedures—Medical records were reviewed for information on signalment; history; clinical, clinicopathologic, and diagnostic imaging findings; and treatment. Follow-up information was obtained through telephone interviews with owners. Results—Horses ranged from 4 to 22 years old; there were 8 castrated males and 8 females.

Authors: JENNIFER M. COHEN VMD, ROBERT K. SCHNEIDER DVM, MS, Diplomate ACVS, CHAD J. ZUBROD DVM, MS, Diplomate ACVS, SARAH N. SAMPSON DVM
Journal: Veterinary surgery

Objective—(1) To describe the clinical signs and abnormalities observed on magnetic resonance imaging (MRI) in 7 horses with desmitis of the distal digital annular ligament (DDAL); (2) to describe the normal magnetic resonance (MR) appearance and thickness of the DDAL in health; and (3) to describe a tenoscopic surgical technique for treating horses with desmitis of the DDAL. Study Design—Retrospective study. Animals—Horses (n=7) with desmitis of the DDAL. Methods—MR examinations of 20 sound horses were reviewed to determine the normal appearance of the DDAL.

Category: Equine - Imaging - Ligament - MRI
Authors: ALEC J.R. JORGENSEN, OLGA SECO DIAZ, VIRGINIA B. REEF
Journal: Veterinary Radiology and Ultrasound

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Category: Equine - Imaging - Tendon - Ultrasound
Authors: Lauren G. Kleine, DVM; Mauricio Solano, MV; Mary Rusckowski, PhD; Kathleen E. Hunt, BS; Karen L. Johnson, BS; Carl A. Kirker-Head, MA, VetMB
Journal: American Journal of Veterinary Research

Objective—To evaluate the use of technetium Tc 99m–labeled EDTA-biotin monomer (99mTc-EB1) as a scintigraphic imaging agent for soft tissue inflammatory lesions in horses.

Animals—6 healthy adult horses.

Authors: Katrien Vanderperren, DVM; Benoit Ghaye, MD; Frédéric R. Snaps, DVM, PhD; Jimmy H. Saunders, DVM, PhD
Journal: American Journal of Veterinary Research

Objective—To determine the detailed computed tomography (CT) anatomy of the metacarpophalangeal (MCP) joint in healthy horses.

Sample Population—10 cadaveric forelimbs from 10 adult horses without orthopedic disease.

Category: CT - Equine - Imaging
Authors: Dyson, S.
Journal: Equine Veterinary Education

Acquisition of a sufficient number of high quality radiographic views is an essential prerequisite to accurate radiological interpretation of the navicular bone. This requires appropriate preparation of the foot, careful attention to limb position and to both centring and direction of the x-ray beam, according to hoof capsule conformation. Artefacts are easily created.

Category: Equine - Imaging - Radiography
Authors: Driver, A.J.; Nagy, A.
Journal: Equine Veterinary Education

Proximal hindlimb lameness remains a diagnostic challenge despite modern imaging techniques. In the case described here, a fracture of the ischium produced false negative results on initial ultrasound and scintigraphy examinations, despite a 14 day delay from onset of clinical signs to the time of the nuclear bone scan. However, the history and clinical examination were strongly suggestive of a pelvic injury and this was only confirmed by the use of a novel radiographic technique.

Category: Bone - Equine - Imaging - Lameness