螺旋CT及后处理技术在跗骨隐匿性骨折中的诊断价值

The Value of Postprocessing Technique with Spiral CT in Diagnosis of the Tarsal Bones Occult Fracture

目的:通过对螺旋CT以及其后期处理技术进行探讨从而体现其在足跗骨隐匿性骨折中的诊断意义。方法:对经过X线片检测的62例疑似骨折患者进行SCT扫描后,通过特殊的CT图像处理软件包在工作站上进行后处理(MPR、MIP、VRT及SSD),得到外伤部位骨骼高清晰度的二维和三维图像后,进行阅片,统一阅片意见,从而获取诊断结果。结果:62例外伤患者实施X线检查发现阴性或可疑足跗骨骨折的SCT扫描并重建后,39例显示有骨折,其中距骨(Talus)骨折5例,跟骨(Calcaneus)骨折8例,舟骨(Navicular bone)骨折6例,楔骨(Cuneiform bone)骨折11例,骰骨(Cuboid bone)骨折9例。结论:螺旋CT及后处理技术对临床怀疑足跗骨骨折而普通X线(DR)不能确诊为骨折的病例能准确地作出准确诊断,当X线平片检查阴性或可疑跗骨骨折应及时行SCT检查。

Objective Through carries on the discussion to the spiral CT and post-processing technique which embodied in the tarsal bones in the diagnosis of occult fracture.Methods The X-ray detection of 62 cases of suspected fracture underwent SCT scan,through special CT image processing software package for post processing on the workstation（MPR,MIP, VRT and SSD）,traumatic bone obtained high resolution 2D and 3D images,images,unified the views,obtaining the diagnosis results to.Results X-ray findings of SCT scan and reconstruction was ncgativc or doubtful tarsal bone fracture in 62 cases after implementation of trauma patients,39 cases showed fractures,which（Talus） in 5 cases of fracture o~ talus,calcaneus（Calcaneus） in 8 cases of fracture of the scaphoid fractures（Navicular, bone） in 6 cases,cuneiform（Cuneiform bone） fractttre in l 1 cases,cuboid（Cuboid bone） fracture in 9 cases.Conclusion Spiral CT and post-processing technique for clinical suspicion of tarsal bone fiacture and ordinary x-ray（DR） could not be diagnosed fracture were accurately diagnosed accurately, when the X-ray examination was negative or doubtful tarsal bone fracture should be examined by SCT.