Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, IN 46202, USA.
AJR Am J Roentgenol. 2012 Jun;198(6):W602-4. doi: 10.2214/AJR.11.7189.
T2 relaxation time is sensitive in detecting early cartilage damage. There are few reports of T2 mapping for smaller joints because of technical challenges. The purpose of this study is to evaluate the feasibility of T2 mapping of the metacarpal head cartilage in children.
T2 mapping of the metacarpal head cartilage is feasible in children on a 3-T scanner with commercially available coils. An increase in the T2 values near the osteochondral junction likely reflects the secondary physis.
T2 弛豫时间在检测早期软骨损伤方面很敏感。由于技术挑战，很少有关于较小关节 T2 成像的报道。本研究的目的是评估在 3T 扫描仪上使用商用线圈对儿童掌骨头软骨 T2 成像的可行性。
在配备商用线圈的 3T 扫描仪上，掌骨头软骨 T2 成像在儿童中是可行的。靠近骺软骨结合处 T2 值的增加可能反映了次级骺板。
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