目的 探讨胸腰椎压缩性骨折MRI 信号特征及临床应用价值。方法 收集我 院2014年7月至2017年1月收治的胸腰椎 压缩性骨折患者共69例的临床资料、影 像学资料等，总结胸腰椎压缩性骨折MRI 信号特征，分析MRI在检查胸腰椎压缩性 骨折中的应用价值。结果 共86个损伤椎 体中，49个(56.97%)压缩性骨折椎体表 现为不同程度椎体变扁，37个(43.02%) 呈楔形改变；MRI平扫中，37个(43.02%) 椎体前后缘上下角呈现突出状态，多数 患者椎体内依然可见正常骨髓信号，4个 (4.65%)椎体相应层面椎管内或椎旁血肿 形成；29例(42.02%)患者出现前纵韧带断 裂，19例(27.53%)患者后纵韧带断裂， 21例(30.4%)患者棘间韧带、棘上韧带断 裂，17例(24.63%)患者椎间盘损伤；47个 (54.65%)椎体T1WI出现低信号带，11个 (12.79%)椎体T2WI则表现为高信号，21个 (24.41%)椎体T2WI脂肪抑制序列呈现明显 高信号，12个(13.95%)椎体集中于前中部 发现线样水样高信号，16(18.60%)个椎体 见脊髓、圆锥、马尾神经损伤信号改变。 结论 MRI可清晰显示胸腰椎压缩性骨折信 号特征，为临床后期治疗提供可靠的影像 学资料。

Objective To explore the MRI signal characteristics and clinical application value of thoracolumbar compressible fractures. Methods A total of 69 cases of patients with thoracolumbar compressible fractures admitted by our hospital from July 2014 to January 2017 were selected. Clinical data and imaging data of patients were collected, and the MRI signal characteristics of thoracolumbar compressible fractures were summarized, and the application value of MRI in the examination of thoracolumbar compressible fractures was analyzed. Results Among 86 injured vertebral bodies, 49 (56.97%) vertebral bodies of compression fractures showed varying degrees of vertebral body flattening, and 37 (43.02%) showed wedge changes. In non -enhanced MRI scan, 37 (43.02%) vertebral bodies showed prominent position in front and back edge upper and lower angles, and normal bone marrow signals were still seen in most patients' vertebral bodies, and hematoma formation occurred in the vertebral canal or side of vertebral bodies at the corresponding level in 4 (4.65%) vertebral bodies. Anterior longitudinal ligament rupture occurred in 29 cases (42.02%), posterior longitudinal ligament rupture in 19 cases (27.53%), interspinous ligament and supraspinal ligament rupture in 21 cases (30.4%) and intervertebral disc injury in 17 cases (24.63%). Low signal band was found in 47 (54.65%) vertebral body T1WI, high signal in 11 (12.79%) vertebral body T2WI, significantly high signal in 21 (24.41%) vertebral body T2WI fat inhibition sequence, 12 (13.95%) vertebral bodies were concentrated in the anterior central region, and linear water-like signal was found，16 (18.60%) spinal cord, cone and cauda equina nerve injury signal changes were observed in 16 vertebral bodies. Conclusion MRI can display the signal characteristics of thoracolumbar vertebral compressible fracture clearly, and improve the reliable imaging data for the later treatment.