Li K C, Higgs J, Aisen A M, Buckwalter K A, Martel W, McCune W J
Department of Radiology, University of Michigan Medical Center, Ann Arbor 48109.
Magn Reson Imaging. 1988 May-Jun;6(3):229-36. doi: 10.1016/0730-725x(88)90396-7.
In a prospective study, 10 patients with well-documented osteoarthritis (O.A.) of the hips were imaged using spin-echo pulse sequences (TR = 0.5 to 1.5 s and TE = 28 to 60 ms). After analyzing the changes observed, an MR grading system for assessing severity of O.A. in the hips was developed. Using this grading system and an established grading system for osteoarthritis using roentgenograms (both systems use grades 0-4), two radiologists independently graded the MR studies and plain films separately, twice. The roentgenogram grading system was more accurate in predicting symptoms in the more severe cases, whereas the MR grading system was slightly more useful in the less severe cases. Our results show that MR can demonstrate a spectrum of changes of O.A. in the hips. Its ability to directly image articular cartilage makes it a powerful research and clinical tool.
在一项前瞻性研究中，对10例有充分记录的髋部骨关节炎（O.A.）患者使用自旋回波脉冲序列（TR = 0.5至1.5秒，TE = 28至60毫秒）进行成像。在分析观察到的变化后，开发了一种用于评估髋部骨关节炎严重程度的磁共振成像（MR）分级系统。使用该分级系统和一种既定的利用X线片的骨关节炎分级系统（两种系统均使用0 - 4级），两名放射科医生分别对MR研究和普通X线片进行了两次独立分级。X线片分级系统在预测更严重病例的症状方面更准确，而MR分级系统在不太严重的病例中略有用处。我们的结果表明，MR能够显示髋部骨关节炎的一系列变化。其直接对关节软骨成像的能力使其成为一种强大的研究和临床工具。
