CT、MRI对脊柱转移瘤的诊断价值

目的探讨CT、MRI诊断脊柱转移瘤的价值。方法回顾性分析55例经病理、临床证实脊柱转移瘤患者的CT和MRI表现。结果 CT、MRI检出55例脊柱转移瘤123个椎体受累,累及附件89个,累及椎管53处,椎旁软组织肿块65处,病理性骨折12处。CT表现为溶骨型、成骨型、混合型三种骨质改变。MRI表现为多数椎体形态无改变,少数椎体楔形变,双凹变形或伴前后径增大。椎体信号呈三种类型改变:均匀或略不均匀长T1、长T2信号;长T1短T2信号;T1WI不均匀低信号,T2WI混杂信号。MRI增强后病灶呈不同程度强化。结论 CT、MRI诊断脊柱转移瘤各有优势。CT显示脊柱转移瘤的骨质破坏改变优于MRI。MRI在鉴别诊断脊柱转移瘤病理性压缩骨折和诊断早期脊柱转移瘤中明显优于CT。

The value of CT and MRI in the diagnosis of spinal metastases

Objective To evaluate the value of CT and MRI in the diagnosis of spinal metastases.Methods CT and MRI data of 55 patients with clinically and pathologically proved spinal metastases were analyzed retrospectively.Results CT and MRI demonstrated 123 involved vertebral bodies,89 involved appendages,53 involved vertebral canals,65 paravertebral soft tissue masses,and 12 pathological fractures in 55 patients.CT showed three-patterns of bony changes which comprised osteolytic,osteogenic and mixed bony destructio...