髁状突表面解剖标志的成像位置研究  

Image position research of the anatomic mark on the surface of mandibular condyle

作　　者：曾东林[1] 温奕雄[1] 崔敏毅[1] 涂之平[1] 

机构地区：[1]中山大学口腔医学研究所附属口腔医学影像诊断科,主任讲师广东510055

出　　处：《中华老年口腔医学杂志》2008年第3期172-175,共4页Chinese Journal of Geriatric Dentistry

摘　　要：目的:研究髁状突表面解剖标志在普通X线片位上的成像位置。方法:以带下颌骨的成人颅骨标本作为摄片对象。以细铅丝标识定位髁状突表面解剖标志,拍摄标识侧颞下颌关节的薛氏位、髁状突的经咽侧位和曲面体层片。结果:薛氏位显示髁状突外极处于高位,邻近关节凹底部;内极处于低位,远离关节凹底部。经咽侧位和曲面体层显示髁状突外极处于低位,远离关节凹底部;内极处于高位,邻近关节凹底部。髁状突前斜面约占据髁状突影像的前半部分,前斜面下缘位于髁状突影像前部,呈纵行斜向走行。结论:在普通X线片上,髁状突的内外极影像位置,会随着投照角度的改变而变化。Objective： To research the image position of the anatomic mark on the surface of mandibular condyle. Methods： One dry human skull with full dentition was selected as X-ray projection objective. The anatomic mark on the surface of the right side mandibular condyle was marked by fine lead line. The transcranial lateral-oblique projection of TMJ, transpharyngeal projection of condyle and the panoramic film of the marked side were taken respectively. Therespectively. The image position of the surface anatomic mark of condyle was determined by the image position of the lead line. Results： On transcranial lateral-oblique projection, the external pole of the mandibular condyle was shown at high position which was near the mandibular fossa; the internal pole was shown at low position which was far away from the mandibular fossa. However, on transpharyngeal projection of condyle and the panoramic film, the external pole was shown at low position and the internal pole was shown at high position. The anterior half of the whole image of condyle was almost occupied by anterior incline of condyle. The inferior border of the anterior incline was in the front of the condyle image. Conclusion： When general X-ray film of mandibular condyle was taken, the image position of external and internal pole of condyle would be change according to the different projection angle.

关 键 词：颞下颌关节 髁状突 成像位置 影像技术 

分 类 号：R816.98[医药卫生—放射医学]