螺旋CT三维重建在髁突骨折诊断中的应用  

Clinical application of spiral CT scanning and 3D imaging reconstruction in the diagnosis of mandibular condylar fractures

作　　者：黄盛兴[1] 张春雷[2] 范海东[1] 陈鹏[1] 孙海鹏[1] 李莹[1] 

机构地区：[1]暨南大学医学院第二附属医院 [2]暨南大学医学院口腔系,广东广州510632

出　　处：《中国口腔颌面外科杂志》2004年第1期9-11,共3页China Journal of Oral and Maxillofacial Surgery

基　　金：深圳市科技局卫生科技项目(199805035)

摘　　要：目的:应用螺旋CT三维影像重建技术诊断髁突骨折。方法:对28例髁突骨折行螺旋CT扫描检查,作冠状平面与颌面骨三维立体重建,与下颌全景X线片进行对比观察。结果:螺旋CT对28例髁突骨折均可确诊并分类,低、中、高位骨折分别为9、11和8例,全景X线片分别为9、9、4例,剩余2例中位和4例高位骨折漏诊。术后CT复查显示手术复位效果满意。结论:螺旋CT冠状平面重建对中、高位骨折有特殊诊断价值,三维立体重建影像直观地显示了骨折情况,对髁突骨折的诊断、治疗方案的制定和疗效评价有重要作用。下颌全景X线片的诊断作用有限,可用于颌面外伤患者的初步检查。PURPOSE:To introduce the clinical application of spiral CT scanning and3D imaging reconstruction in the diagnosis and treatment of mandibular condylar fractures.METHODS:28cases with condylar fracture were examined by spiral CT scanning and3D imaging reconstruction were completed.Condylar fractures were classified according to panoramic X-ray film and3D CT imaging.Open reduction and internal fixation were carried out for26cases(34joints)and surgical effect were observed by radiology.RESULTS:All28condylar fractures(36joints)could be clearly diag-nosed by spiral CT and classified as lower(9),middle(11)and high(sagittal)fracture(8),respectively only22cases were diagnosed by panoramic X-ray film and classified as lower(9),middle(9)and high(4),the other6failed to be diagnosed.The effect of surgical reduction was satisfactory by X ray film and spiral CT examination.CONCLUSION:Spiral CT plays a very important role in diagnosis and treatment of condylar fractures,especially coronal reconstruction imaging for high condylar sagittal fractures.3D reconstruction imaging displays the most direct vision to condylar fractures.Panoramic X-ray film has a limited diagnostic valuable and should only be used as a preliminary examination of maxillofacial trau-ma.

关 键 词：髁突骨折 螺旋CT 三维重建 诊断 全景X线片 

分 类 号：R816.98[医药卫生—放射医学]