目的 旨在探讨多层螺旋CT及容 积再现后处理成像技术在诊断腰椎压缩 性骨折中的价值。方法 选取我院2017年 1月-2018年1月收治的71例腰椎压缩性骨 折患者，71例患者均进行了CT平扫及后 处理图像技术，总结腰椎压缩性骨折在CT 后处理技术中的图像特点，比较CT平扫、 CT后处理技术对腰椎压缩性骨折诊断灵敏 度及特异度。结果 71例患者共出现84个 腰椎椎体变形，骨折范围第1腰椎到第7 腰椎；第1腰椎11个，第2腰椎12个，第3 腰椎18个，第4腰椎16个，第5腰椎17个， 第6腰椎6个，第7腰椎4个；椎体压缩程 度：<1/3的椎体34个(40.47%)，1/3-1/2 的椎体39个(46.42%)，>1/2的椎体11个 (13.09%)。VR后处理技术中，71例腰椎压 缩性骨折患者均表现为不同程度的椎体楔 形改变，椎体上缘骨皮质不完整且粗糙， 少数患者伴有部分骨质凹陷，骨小梁结构 模糊、疏密程度不一，排列混乱。CT平扫 对腰椎压缩性骨折灵敏度及特异度分别为 80.28%、78.87%，VR后处理技术对腰椎压 缩性骨折灵敏度及特异度分别100.00%、 98.59%，VR后处理技术对腰椎压缩性骨折 灵敏度及特异度明显高于CT平扫，差异具 有统计学意义(χ2 =15.531、13.806，P均 <0.001)。结论 多层螺旋CT容积再现后处 理成像技术诊断腰椎压缩性骨折灵敏度及 特异度高，能多角度观察具体病情，可为 临床提高相关影像学资料。

Objective To explore the value of multi-slice spiral CT and volumereconstruction posttreatment imaging in the diagnosis of lumbar compression fracture. Methods A total of 71 cases of lumbar compressibility fractures treated in our hospital from January 2017 to January 2018 were selected. All of the 71 cases were treated with CT plain scanning and post-processing image technology. The image features of lumbar compressibility fractures in the post-processing technique were summarized, and the diagnostic sensitivity and specificity of CT plain scanning and CT post-processing for lumbar compressibility fractures were compared. Results A total of 84 lumbar vertebral deformities occurred in the 71 patients, and the fracture range from the 1st lumbar vertebra to the 7th lumbar vertebra. The 1st lumbar spine is 11, the 2nd lumbar spine is 12, the 3rd lumbar spine is 18, the 4th lumbar spine is 16, the 5th lumbar spine is 17, the 6th lumbar spine is 6, and the 7th lumbar spine is 4. Vertebral body compression degree: <1/3 of the vertebral body 34 (40.47%), 1/3-1/2 of the vertebral body 39 (46.42%), >1/2 of the vertebral body 11 (13.09%). In VR post-treatment technology, 71 patients with lumbar compressive fracture all presented different degrees of vertebral wedge change, the upper margin of the vertebral body was incomplete and rough, and a few patients were associated with partial bone depression, with unclear bone trabecula structure, different degrees of density and disordered arrangement. The sensitivity and specificity of CT scanning to lumbar compressibility fracture were 80.28% and 78.87%, respectively. The sensitivity and specificity of VR posttreatment to lumbar compressibility fracture were 100.00% and 98.59%, respectively. Conclusion The diagnostic sensitivity and specificity of lumbar compressive fracture with multi-slice spiral CT volume reconstruction is high, which can be used to observe the specific condition from multiple angles.