目的 对比研究椎体脆性骨折 (骨质疏松性骨折)的X线平片、CT及MRI 等多模态影像的诊断价值。方法 回顾性 分析78例经我院诊治的椎体脆性骨折的 X线平片、CT及MRI影像资料，比较其诊 断价值。结果 78例共计发生椎体新鲜脆 性骨折118处，其中单发椎体骨折52例 (66.7%)，多发椎体骨折26例(33.3%)。 MRI诊断椎体新鲜骨折118处，无漏诊； CT诊断椎体新鲜骨折90个，漏诊28个， 漏诊率23.7%(28/118)；X线平片诊断椎 体新鲜骨折或形态变扁83个，漏诊48 个，漏诊率40.7%(48/118)。结论 MRI可 鉴别新鲜骨折与陈旧性骨折，是诊断椎 体脆性骨折的最佳影像检查方法；CT检 查漏诊率较高， X线平片漏诊率最高。

Objective To compare the diagnostic value of X-ray plain films, CT and MRI images of fragile vertebral fractures (osteoporotic fractures). Methods The imaging findings of X-ray plain film, CT and MRI in 78 cases diagnosed as brittle fracture of vertebral body were analyzed retrospectively, and the diagnostic value of three methods for brittle fracture of vertebral body were contrastive studied. Results There were 118 fresh brittle fractures of the vertebral body in 78 cases, of which 52 cases were single vertebral fracture (66.7%), and 26 cases were multiple vertebral fractures (33.3%). MRI diagnosed 118 cases of fresh vertebral fractures without missed diagnosis. CT diagnosed 90 cases of fresh vertebral fractures with missed diagnosis of 28 cases, missed diagnosis rate 23.7% (28/118); X-ray plain film diagnosis of fresh vertebral fractures or flatting 83, 48 missed diagnosis, missed diagnosis rate 40.7% (48/118). Conclusion In the diagnosis of vertebral fragile fracture, MRI is helpful for differentiating fresh fracture from old fracture and it is the best imaging method. The missed diagnosis rate of CT is high, and the rate of missed diagnosis is the highest.