Greess Holger, Anders Katherina
Institut für Diagnostische Radiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Maximiliansplatz 1, 91054 Erlangen.
Rontgenpraxis. 2005;56(1):1-11. doi: 10.1016/j.rontge.2005.05.001.
Recurrent pains of the temporomandibular joint represent a frequent symptom with numerous different causes. CT and MRI can reliably show the cause of these disorders and therefore have substituted conventional X-ray imaging. Modern multi-slice-CT (MSCT) allows for examination of the skull base including the mandible in a very short time with thinnest slice collimation (0.75mm). With 2D- and 3D-reformations reconstructed out of this volume data set in parasagittal, coronal or any other arbitrary slice orientation excellent imaging of fractures and bony changes of arthrosis as well as benign and malignant tumors of the temporomandibular joint can be performed. MRI offers very good soft tissue contrast in order to visualize the intra-articular disc, the ligaments and muscles, as well the possibility to acquire cross sectional images in any user-defined orientation. MRI is the method of choice to diagnose ,,internal derangement", particularly displacement of the intra-articular disc and inflammatory disease of the temporomandibular joint. The present paper will provide diagnostic strategies for the use of MSCT or MRI imaging concerning the different causes of disorders of the temporomandibular joint.
颞下颌关节反复疼痛是一种常见症状，病因众多。CT和MRI能够可靠地显示这些病症的病因，因此已取代传统的X线成像。现代多层螺旋CT（MSCT）能够在极短时间内以最薄的层厚准直（0.75mm）对包括下颌骨在内的颅底进行检查。利用从该容积数据集重建的二维和三维图像，在矢状旁、冠状或任何其他任意切片方向上，可以对颞下颌关节的骨折、关节病的骨质改变以及良性和恶性肿瘤进行出色的成像。MRI提供了非常好的软组织对比度，以便显示关节内盘、韧带和肌肉，还能够以任何用户定义的方向获取横截面图像。MRI是诊断“内部紊乱”的首选方法，特别是关节内盘移位和颞下颌关节炎症性疾病。本文将提供关于颞下颌关节病症不同病因的MSCT或MRI成像诊断策略。
