Westesson P L, Katzberg R W, Tallents R H, Sanchez-Woodworth R E, Svensson S A, Espeland M A
Radiology. 1987 Jul;164(1):59-64. doi: 10.1148/radiology.164.1.3588927.
The accuracy of magnetic resonance (MR) imaging in the assessment of internal derangements of the temporomandibular joint (TMJ) has not been systematically evaluated. We obtained multiple 3-mm-thick sagittal and coronal MR images of 15 fresh TMJ autopsy specimens and compared the MR imaging findings with observations in corresponding sagittal cryosections. MR imaging correctly delineated the position of the disk in 11 (73%) joints and incorrectly delineated it in four (27%) joints. Disk configuration was depicted accurately in nine (60%) joints, inaccurately in five (33%), and was not visible in one (7%). Errors observed with sagittal MR images were correlated with mediolateral alterations of disk position. These abnormalities were depicted in coronal images, however. Osseous anatomy was correctly assessed in nine joints (60%). MR imaging demonstrated the margin between the disk and its attachments, which is not possible by arthrography. MR imaging is an acceptable alternative to other imaging modalities for assessing soft and hard tissues of the TMJ.
磁共振成像（MR）在评估颞下颌关节（TMJ）内部紊乱方面的准确性尚未得到系统评估。我们获取了15个新鲜TMJ尸检标本的多个3毫米厚的矢状面和冠状面MR图像，并将MR成像结果与相应矢状面冷冻切片的观察结果进行了比较。MR成像在11个（73%）关节中正确描绘了盘的位置，在4个（27%）关节中错误描绘了盘的位置。盘的形态在9个（60%）关节中被准确描绘，在5个（33%）关节中描绘不准确，在1个（7%）关节中不可见。矢状面MR图像观察到的误差与盘位置的内外侧改变相关。然而，这些异常在冠状面图像中被描绘出来。9个关节（60%）的骨性解剖结构被正确评估。MR成像显示了盘与其附着结构之间的边界，这是关节造影无法做到的。MR成像对于评估TMJ的软硬组织是一种可接受的替代其他成像方式的方法。
