van der Kuijl B, Vencken L M, de Bont L G, Boering G
Orofacial Research Group, University of Groningen, The Netherlands.
J Prosthet Dent. 1990 Dec;64(6):709-15. doi: 10.1016/0022-3913(90)90302-s.
Radiology plays an important role in the diagnosis of temporomandibular disorders. Different techniques are used with computed tomography offering simultaneous imaging of bone and soft tissues. It is therefore suited for visualization of the articular disk and may be used in patients with suspected internal derangements and other disorders of the temporomandibular joint. Previous research suggests advantages to direct sagittal scanning, which requires special positioning of the patient and a sophisticated scanning technique. This study describes the development of a new technique of direct sagittal computed tomographic imaging of the temporomandibular joint using a specially designed patient table and internal light visor positioning. No structures other than the patient's head are involved in the imaging process, and misleading artifacts from the arm or the shoulder are eliminated. The use of the scanogram allows precise correction of the condylar axis and selection of exact slice level.
放射学在颞下颌关节紊乱病的诊断中起着重要作用。不同的技术被应用于计算机断层扫描，它能同时对骨骼和软组织进行成像。因此，它适用于关节盘的可视化，可用于怀疑有颞下颌关节内部紊乱及其他疾病的患者。先前的研究表明直接矢状面扫描具有优势，这需要患者特殊的体位摆放和复杂的扫描技术。本研究描述了一种新技术的发展，即使用专门设计的患者检查床和内置光导面罩定位进行颞下颌关节直接矢状面计算机断层成像。成像过程中除患者头部外没有其他结构参与，消除了来自手臂或肩部的误导性伪影。使用扫描定位图可精确校正髁突轴线并选择准确的层面。
