Smith Meredith A, Dyson Sue J, Murray Rachel C
Centre for Equine Studies, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk CB87UU, UK.
Vet Radiol Ultrasound. 2011 Jan-Feb;52(1):61-70.
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.
评估了马掌指关节（MCP）在高场（1.5T）与低场站立（0.27T）磁共振（MR）图像上的表现。目的是：（1）描述从20匹无跛行马的尸体肢体上获取的马MCP关节图像中具有临床意义的解剖结构的MR表现，使用高场和低场系统；（2）将低场MR图像上解剖结构的清晰程度与作为金标准的高场图像进行分类比较。我们发现，较大的解剖结构在高场和低场图像上均可见且边缘清晰，较小的结构在低场图像上不太清晰，因此在低场图像上对较小结构的解读必须谨慎进行。
