64排螺旋CT三维影像后处理技术在胫骨平台骨折中的诊断价值(1)
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[摘要] 目的 探讨64排螺旋CT三维影像后处理技术在胫骨平台骨折中的诊断价值。 方法 回顾性分析40例胫骨平台骨折患者的X线平片和64排螺旋CT三维重组影像(多平面重组MPR和容积再现重组VRT)表现,并进行Schatzker分型,然后根据术中所见,比较二者的诊断符合率。 结果 3例患者X线平片无法明确诊断,7例X线平片分型错误,其诊断符合率为75%,64排螺旋CT三维重组影像对40例患者均做出了准确诊断和分型,其诊断符合率为100%。 结论 64排螺旋CT三维影像后处理技术能对胫骨平台骨折正确诊断及分型,对治疗方法的选择有指导意义。
[关键词] 体层摄影术;X线平片;胫骨平台骨折;Schatzker分型
[中图分类号] R445.3 [文献标识码] A [文章编号] 1674-4721(2012)03(c)-0093-02
Diagnosis value of 64-slice multi-detector CT 3D reconstruction on tibial plateau fractures
SHI Jian SHI Xiaoping WANG Qinying WANG Qiang
Department of CT Room of Suzhou Mudu People's Hospital in Jiangsu Province, Suzhou 215000, China
[Abstract] Objective To evaluate the value of 64-slice multi-detector CT (MSCT) 3D reconstruction in the diagnosis of tibial plateau fractures. Methods Retrospective analysis of plain radiographs and MSCT 3D reconstruction images were performed in 40 cases with tibial plateau fractures and Schatzker classification was made respectively. Results of image studies were compared with those attained on the basis of surgical treatment. Results With plain radiographs, fracture diagnoses were not confirmed in 3 cases and classification errors happened in 7 cases. The diagnostic accordance rate was 75%. The diagnoses and classification of fractures were correct in all cases with MSCT 3D reconstruction images; the diagnostic accordance rate was 100%. Conclusion MSCT 3D reconstruction can make correct diagnosis and classification in tibial plateau fractures, which is very helpful in choosing a best treatment.
[Key words] X-ray computed tomography; Plain radiographs; Tibial plateau fractures; Schatzker classification
胫骨平台骨折(tibial plateau fracture,TPF)在膝关节外伤中是一种较为常见的骨折,由于其解剖关系复杂,X线平片及普通CT很难全面完整地反映关节内骨折及移位的具体情况,对骨折的分型也较为粗略。64排螺旋CT采用薄层容积扫描,得到的数据基本各相同性,通过多平面重组(multiplanar reconstruction,MPR)和容积再现重组(volume rendering technique,VRT)影像后处理技术后能够从对受损关节进行全方位立体观察,从而对骨折进行准确诊断和分型,为治疗方式的选择提供依据。本研究就40例胫骨平台骨折患者的X线平片,64排螺旋CT三维重组影像以及术中所见进行回顾性分析,探讨64排螺旋CT影像后处理技术在诊断胫骨平台骨折中的应用价值。
1 资料与方法
1.1 一般资料
本院2010年2月~2011年10月因TPF接受手术的患者40例,男29例,女11例,年龄19~72岁,平均41.2岁。车祸伤28例,高空坠落8例,不慎跌倒3例,重物砸伤1例,其中3例为双膝骨折,其余均为单膝骨折,所有患者均行X线平片及64排螺旋CT检查。
1.2 方法
X线设备使用Philips DR,AEC自动曝光控制 ......
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