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THE APPEARANCE OF THE EQUINE METACARPOPHALANGEAL REGION ON HIGH-FIELD VS. STANDING LOW-FIELD MAGNETIC RESONANCE IMAGING

Authors


  • Meredith Smith was funded by The Horse Trust during this study. Hallmarq Veterinary Imaging Ltd. provided financial assistance for this study.

Address correspondence and reprint requests to Dr. Meredith A. Smith at The Newmarket Equine Hospital, Cambridge Road, Newmarket CB8 0FG, UK. E-mail: meredith.smith@neh.uk.com

Abstract

The appearance of the equine metacarpophalangeal (MCP) joint on high-field (1.5 T) vs. low-field standing (0.27 T) magnetic resonance (MR) images was evaluated. Objectives were (1) to describe the MR appearance of anatomic structures of clinical interest on images of the equine MCP joint obtained from 20 equine cadaver limbs from horses without lameness using high-field and low-field systems, (2) to categorize the clarity of appearance of anatomic structures on low-field MR images in comparison to high-field images as a gold standard. We found that larger anatomic structures were visible with sharp margins on both high- and low-field images, smaller structures were less distinct on low-field images and therefore interpretation of smaller structures on low-field images must be done with care.

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