目的 探讨腰3-5椎棘结核并冷脓 肿的MRI影像学特征及MRI诊断价值。方 法 回顾性分析2012年1月至2016年5月在 本院进行MRI影像检查并经手术病理确认 的50例腰3-5椎棘结核并冷脓肿患者的临 床资料和影像资料，同时对病变的类型、 强化程度及对周围组织的感染程度等进行 归类分析。结果 MRI扫描整体正确诊断 率为88%。对并发冷脓肿型患者诊断率为 91.3%。误检率为2%(1/50)。MRI影像特 征：病灶区T1WI信号由高减低；T2WI信号 呈现增强特征；平扫STAIR序列，信号以 高为主。增强扫描时，病灶区骨质被破 坏，周围肌肉有不均匀强化。结论 腰3-5 椎棘结核并冷脓肿在MRI影像中有着典型 的影像特征，MRI可对其作出准确诊断。

Objective To make a thorough inquiry about the MRI imaging features of the tuberculosis of lumbar spine 3-5 with cold abscess and to explore the diagnostic value of MRI in this area. Methods To analyse the MRI images of 50 patients with tuberculosis of Lumbar spine between L3 and L5 with cold abscess identified by surgery from June 2012 to May 2016 in our hospital. And enhancement degree, type of the tumour and the infection degree of surrounding tissue were classified and analyzed. Results The results of analysis told that: the total diagnostic rate was 88%. The diagnosis rate of patients with concurrent cold abscess was 91.3%. The features of MRI image show: T1WI signal of the lesion area was decreased; the T2WI signal was enhanced, and when the STAIR sequence was flat, the signal was high. In enhanced scan, the lesion area of bone was destructed and the surrounding muscles are not evenly enhanced. Conclusion There is a typical image features in MRI image of tuberculosis of Lumbar spine between L3 and L5 with cold abscess and MRI can make an accurate diagnosis.