Interphalangeal joint cartilage: High-spatial-resolution in vivo MR T2 mapping - A feasibility study
Interphalangeal joint cartilage: High-spatial-resolution in vivo MR T2 mapping - A feasibility study
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DOI：
10.1148/radiol.2331031791
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发表时间：
2004-10-01
期刊：
影响因子：
19.7
通讯作者：
Smith, MB
中科院分区：
文献类型：
--
作者：
Lazovic-Stojkovic, J;Mosher, TJ;Smith, MB
本研究的目的是评估磁共振（MR）T2标测食指近端指间关节的可行性。使用3.0 T MR成像仪从5名无症状受试者（4名男性和1名女性，年龄24-45岁）中获得了面内分辨率为39 μ m的软骨T2图。图像采集时间为9.6分钟。所有软骨T2图显示的空间变化与之前报道的膝关节软骨相似，T2值向关节面增加。这些结果证明了获得手部小关节软骨T2图的可行性。将T2技术应用于非承重关节可能会提供一种区分局部生物力学和全身因素的方法，这些因素可能会影响软骨T2值。（C）RSNA，2004年。
The purpose of this study was to evaluate feasibility of magnetic resonance (MR) T2 mapping of the proximal interphalangeal joint of the index finger. Cartilage T2 maps with an in-plane resolution of 39 mum were obtained from five asymptomatic subjects- four men and one woman, aged 24-45 years-by using a 3.0-T MR imager. Image acquisition time was 9.6 minutes. All cartilage T2 maps demonstrated spatial variation similar to that reported previously for knee cartilage, with T2 values increasing toward the articular surface. These results demonstrated the feasibility of aquiring cartilage T2 maps of small joints in the hand. Application of T2 techniques to non-weight -bearing joints may provide a means for differentiation of local biomechanical and systemic factors that can affect cartilage T2 values. (C)RSNA, 2004.