Brooks S L, Westesson P L
Department of Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor.
Radiology. 1993 Aug;188(2):317-21. doi: 10.1148/radiology.188.2.8327672.
To evaluate the use of coronal magnetic resonance (MR) imaging in assessment of disk position in the temporomandibular joint (TMJ), sagittal and coronal 1.5-T MR images were obtained of 158 TMJs in 79 patients. From the sagittal images, medial or lateral displacement was suspected in 24 joints. Displacement could be confirmed from coronal images in 21 joints but could not be confirmed in three. In 18 other joints, the coronal images revealed a lateral or medial displacement that was not evident on sagittal images. In seven of these 18, displacement was purely lateral or purely medial, whereas the other 11 had a combination of anterior and lateral or medial displacement. On the basis of only sagittal images, the seven with pure displacement would have been diagnosed as normal. Use of the coronal plane added diagnostic information to that obtained with sagittal imaging and may increase diagnostic accuracy. Coronal images are therefore recommended as a supplement to sagittal images in MR imaging evaluation of the TMJ.
为评估冠状面磁共振（MR）成像在颞下颌关节（TMJ）盘位置评估中的应用，对79例患者的158个TMJ进行了矢状面和冠状面1.5-T MR成像。在矢状面图像上，24个关节疑似有内侧或外侧移位。在冠状面图像上，21个关节的移位得以证实，但有3个未得到证实。在另外18个关节中，冠状面图像显示出矢状面图像上不明显的外侧或内侧移位。在这18个关节中的7个，移位为单纯外侧或单纯内侧，而另外11个则同时存在前侧与外侧或内侧移位。仅基于矢状面图像，这7个单纯移位的关节会被诊断为正常。冠状面的使用为矢状面成像所获信息增添了诊断信息，可能会提高诊断准确性。因此，在TMJ的MR成像评估中推荐将冠状面图像作为矢状面图像的补充。
