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首页> 外文期刊>Veterinary Radiology & Ultrasound >CORRELATION OF ARTICULAR CARTILAGE THICKNESS MEASUREMENTS MADE WITH MAGNETIC RESONANCE IMAGING, MAGNETIC RESONANCE ARTHROGRAPHY, AND COMPUTED TOMOGRAPHIC ARTHROGRAPHY WITH GROSS ARTICULAR CARTILAGE THICKNESS IN THE EQUINE METACARPOPHALANGEAL JOINT
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CORRELATION OF ARTICULAR CARTILAGE THICKNESS MEASUREMENTS MADE WITH MAGNETIC RESONANCE IMAGING, MAGNETIC RESONANCE ARTHROGRAPHY, AND COMPUTED TOMOGRAPHIC ARTHROGRAPHY WITH GROSS ARTICULAR CARTILAGE THICKNESS IN THE EQUINE METACARPOPHALANGEAL JOINT

机译：等效角POP软骨关节中磁共振成像，磁共振关节造影和计算机断层造影与总关节软骨厚度的关节软骨厚度测量值的相关性

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摘要

Osteoarthritis of the metacarpophalangeal joint is common cause of lameness in equine athletes, and is hallmarked by articular cartilage damage. An accurate, noninvasive method for measuring cartilage thickness would be beneficial to screen for cartilage injury and allow for prompt initiation of interventional therapy. The objective of this methods comparison study was to compare computed tomographic arthrography (CTA), magnetic resonance imaging (MRI), and magnetic resonance arthrography (MRA) measurements of articular cartilage thickness with gross measurements in the metacarpophalangeal joint of Thoroughbred horses. Fourteen cadaveric, equine thoracic limbs were included. Limbs were excluded from the study if pathology of the metacarpophalangeal articular cartilage was observed with any imaging modality. Articular cartilage thickness was measured in nine regions of the third metacarpal bone and proximal phalanx on sagittal plane MRI sequences. After intra-articular contrast administration, the measurements were repeated on sagittal plane MRA and sagittal CTA reformations. In an effort to increase cartilage conspicuity, the volume of intra-articular contrast was increased from 14.5 ml, to maximal distention for the second set of seven limbs. Mean and standard deviation values were calculated, and linear regression analysis was used to determine correlations between gross and imaging measurements of cartilage thickness. This study failed to identify one imaging test that consistently yielded measurements correlating with gross cartilage thickness. Even with the use of intra-articular contrast, cartilage surfaces were difficult to differentiate in regions where the cartilage surfaces of the proximal phalanx and third metacarpal bone were in close contact with each other. (C) 2015 American College of Veterinary Radiology.
机译：掌指关节的骨关节炎是马运动员la行的常见原因，并且以关节软骨损伤为特征。准确，无创的测量软骨厚度的方法将有利于筛查软骨损伤并允许迅速开始介入治疗。此方法比较研究的目的是比较纯种马的掌指关节中的关节软骨厚度的计算机断层摄影术（CTA），磁共振成像（MRI）和磁共振成像（MRA）测量。包括十四具尸体，马胸四肢。如果以任何成像方式观察到掌指关节软骨的病理，则将肢体排除在研究范围之外。在矢状面MRI序列上测量了第三掌骨和近指骨的九个区域的关节软骨厚度。关节内造影剂给药后，在矢状面MRA和矢状CTA重建处重复测量。为了增加软骨的显眼性，关节内造影剂的体积从14.5 ml增加到第二组七个肢体的最大扩张。计算平均值和标准偏差值，并使用线性回归分析确定软骨厚度的总体和影像测量值之间的相关性。这项研究未能确定一项影像学检查，该影像学检查始终能产生与软骨总厚度相关的测量结果。即使使用关节内造影剂，在近节指骨和第三掌骨的软骨表面彼此紧密接触的区域中，也难以区分软骨表面。 （C）2015年美国兽医放射学院。

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