CT 扫描体位设计在桡骨头骨折分型中的作用

CT 扫描体位设计在桡骨头骨折分型中的作用
王予生 刘霞 屈辉 程晓光 吴志钢
【摘要】 目的 对比分析、研究50 例桡骨头骨折患者的计算机X 线摄影( CR) 平片、CT 冠状面
和轴面体位扫描影像。设计确定桡骨头骨折CT 扫描的常规体位。方法 选用50 例临床拟诊桡骨
头骨折的患者, 分别摄取桡骨头部位CR 平片、冠状面和轴面CT 扫描影像。按临床采用的Mason 分
型, 对全部桡骨头骨折影像进行Ⅰ ～Ⅳ分型。结果 50 例桡骨头骨折患者的CT 扫描诊断阳性率为
96% ( 48 例) ; CR 平片诊断阳性率为78% ( 39 例) 。经CT 冠状面体位设计扫描, 确定分型者占94%
( 47 例) 。经CT 轴面体位设计扫描, 确定分型者占82% ( 41 例) 。结论 CT 扫描体位设计对于桡骨
头骨折分型意义明确。采用冠状面扫描体位可以满足常规临床影像诊断分型的需要, 对于Ⅲ 和Ⅳ型
骨折应加扫轴面和进行三维重组。
【关键词】 桡骨骨折; 体层摄影术, X 线计算机; 体位
The utility of differ ent planes of CT scan in classificat ion of ra dial head fractur e WANG Yu-sheng,
LIU Xia, QU Hui, CHENG Xiao-guang, WU Zhi-ga ng. Depa rtment of Radiology, Beijing J ishuitan Hospital,
Beijing 100035, China
【Abstra ct 】 Objective To analyze and compare images of radial head fracture of 50 patients
acquired by computed radiology( CR) , coronal plane and axial plane of CT scan. And to determine routine
plane of CT scan for radial head fracture. Methods Images of of radial head were acquired by CR, coronal
plane and axial plane of CT scan on 50 patients with radial head fracture initially diagnosed by orthopedists.
classify all the cases of radial head fracture into type Ⅰ、Ⅱ、Ⅲ and Ⅳ according to the classification
proposed by Mason. Results The positive incidence of CT and CR were 96% ( 48 ) and 78% ( 39 )
respectively. Cases of 94% ( 47) through CT coronal scan and 82% ( 41) cases through CT axial scan were
exactly classified. Conclusion The designation of the plane of CT scan is significant to the classification of
the radial head fracture. Coronal plane CT scan can meet the need of imaging clinical classification and is
recommended to be routine plane of radial head fracture. In order to ensure the exact classification axial
plane and 3D reconstruction technique should be added for type Ⅲ and type Ⅳ of radial head fracture.
【Key wor ds】 Radius fractures; Tomography, X-ray computed; Posture

CT 扫描体位设计在桡骨头骨折分型中的作用--骨格.rar