Link Thomas M
Department of Radiology and Biomedical Imaging, University of California at San Francisco, 400 Parnassus Avenue, A-367, San Francisco, CA 94131, USA.
Radiol Clin North Am. 2009 Jul;47(4):617-32. doi: 10.1016/j.rcl.2009.04.002.
Whole-organ assessment of a joint with osteoarthritis (OA) requires tailored MR imaging hardware and imaging protocols to diagnose and monitor degenerative disease of the cartilage, menisci, bone marrow, ligaments, and tendons. Image quality benefits from increased field strength, and 3.0-T MR imaging is used increasingly for assessing joints with OA. Dedicated surface coils are required for best visualization of joints affected by OA, and the use of multichannel phased-array coils with parallel imaging improves image quality and/or shortens acquisition times. Sequences that best show morphologic abnormalities of the whole joint include intermediate-weighted fast-spin echo sequences. Also quantitative sequences have been developed to assess cartilage volume and thickness and to analyze cartilage biochemical composition.
对骨关节炎（OA）关节进行全器官评估需要定制的磁共振成像（MR）硬件和成像方案，以诊断和监测软骨、半月板、骨髓、韧带和肌腱的退行性疾病。图像质量受益于场强的增加，3.0-T MR成像越来越多地用于评估OA关节。对于OA受累关节的最佳可视化需要使用专用表面线圈，使用具有并行成像的多通道相控阵线圈可提高图像质量和/或缩短采集时间。最能显示整个关节形态异常的序列包括中等加权快速自旋回波序列。此外，还开发了定量序列来评估软骨体积和厚度，并分析软骨生化成分。
