CT扫描体位设计在桡骨头骨折分型中的作用  

The utility of different planes of CT scan in classification of radial head fracture

作　　者：王予生[1] 刘霞[1] 屈辉[1] 程晓光[1] 吴志钢[1] 

机构地区：[1]北京积水潭医院放射科,100035

出　　处：《中华放射学杂志》2007年第2期125-127,共3页Chinese Journal of Radiology

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。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. Condusion 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.

关 键 词：桡骨骨折 体层摄影术 X线计算机 体位 

分 类 号：R683.42[医药卫生—骨科学] R816.8[医药卫生—外科学]