目的 探讨多层螺旋CT(MSCT)扫 描及MPR矢状位重建图像技术在胸腰椎压 缩骨折患者影像学诊断的应用价值。方 法 选取我院收治的胸腰椎压缩骨折患者 96例为研究对象，均行X线、MSCT检查， 比较两种方法诊断胸腰椎压缩骨折的灵 敏度、特异度、准确度，并分析椎体骨 折分布情况及不同类型胸腰椎压缩骨折的 显示率，观察胸腰椎压缩骨折的MSCT影像 特征。结果 96例患者骨折椎体114例，范 围为T12-L5椎体，其中以T12-L1椎体最多 (75.44％)；MSCT诊断胸腰椎骨折的灵敏 度75.00％、准确度73.96％明显高于X线 检查60.00％、64.58％(P<0.05)，特异度 比较无显著差异(P>0.05)；MPR重建中矢 状位对胸腰椎压缩骨折的显示率90.91％ 较冠状位69.42％、横断面64.46％高 (P<0.05)；MPR矢状位重建图像显示骨折 整体，立体感强，能很好地显示椎管变 形、椎管内碎骨片。结论 MSCT扫描及MPR 矢状位重建图像技术对胸腰椎压缩骨折具 有重要的诊断价值，值得在临床推广应 用。

Objective To explore the application value of multi-slice spiral CT (MSCT) scanning and MPR sagittal reconstructed image technique in the imaging diagnosis of thoracolumbar vertebral compression fractures. Methods 96 patients with thoracolumbar vertebral compression fractures in our hospital were selected as the study subjects. All subjects underwent X-ray and MSCT examination. The sensitivity, specificity and accuracy in the diagnosis of thoracolumbar vertebral compression fractures were compared between the two methods. The distribution of vertebral fractures and display rates of different types of thoracolumbar vertebral compression fractures were analyzed, and the MSCT findings of thoracolumbar vertebral compression fractures were observed. Results In 96 cases, there were 114 fractured vertebral bodies, and the range was T12-L5, of which T12-L1 was the most (75.44%). The sensitivity and accuracy of MSCT in the diagnosis of thoracolumbar fractures (75.00%, 73.96%) were significantly higher than those of X-ray (60.00%, 64.58%) (P<0.05) but there was no significant difference in specificity between the two diagnostic methods (P>0.05). The display rate of sagittal position in MPR reconstruction for thoracolumbar vertebral compression fractures (90.91%) was higher than coronal position (69.42%) and transverse section (64.46%) (P<0.05). MPR sagittal reconstructed images showed the overall fractures, and the three-dimensional sense was strong. It could well display spinal deformation and broken bone tablets in vertebral canal. Conclusion MSCT scan and MPR sagittal reconstructed image technique are of important value in diagnosis of thoracolumbar vertebral compression fractures.