低场MRI对老年人脊柱转移瘤的诊断价值及其鉴别诊断

Diagnosis of Low Field Intensity MR in Spinal Metastatic Tumor in Aged People

目的:评价低场MRI对脊柱转移瘤的敏感性及诊断价值,并且评价MRI在老年人非外伤性多椎体压缩骨折病因诊断及鉴别诊断中的价值。方法:分析56例老年人非外伤性多椎体压缩骨折的MRI表现。每例均同时进行矢状位T1WI,T2WI,轴位T1WI检查,增强50例。结果:脊柱转移瘤30例,表现为椎体后缘突出,部分椎弓根骨质破坏,有时伴有硬膜外肿块。T1WI增强病变椎体、椎弓根呈不均匀强化。脊柱骨质疏松症23例,压缩椎体后缘骨皮质向前折迭成角,部分伴骨片向椎管内突出。T1WI增强病变锥体呈带状强化或不强化。结论:MRI是老年人多发性椎体压缩病因鉴别诊断的敏感和可靠的方法。

Objective：To evaluate the diagnostic value and sensitivity of low field intensity MR in spinal metastatic tumor and the differential diagnostic value in non-traumatic multiple vertebral collapse in aged people.Methods：The MRI appearances in 56 cases with non-traumatic multiple vertebral collapse in aged people were analyzed,The sagittal T1WI、T2WI and axial T1WI MRI scanning were performed in all patients,and 50 cases were enhanced.Results：In Spinal metastatic tumor（n=30）,their images showed the convex posterior cortex,destructions vertebral of pedicles and epidurel mass.Both compressed vertebral and pedicles of vertebral were enhanced mixedly on T1WI.In osteoporosis（n=23）,their images showed retropulsion of bouy fragments of the collapsed vertebral body into the spinal canal were unenhanced or enhanced flakelikely.Conclusion：MRI was useful in the differentiations of the non-traumatic multiple vertebral collapse in aged people.