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目的探讨MR不同序列在诊断早期脊椎转移瘤中的价值。方法25例临床怀疑脊柱转移瘤患者行脊柱磁共振检查,磁共振扫描序列包括自旋回波(SE)T1WI、快速自旋回波(TSE)序列T2WI、快速翻转恢复序列(STIR)、梯度回波(GRE)序列二维多回波聚合(Me-2D)。结果25例均发现脊柱转移瘤病灶,共73个椎体和45个附件受累。椎体的异常在各序列图像显示情况不同,T1WI显示73个异常椎体,T2WI显示55个,STIR显示69个,Me-2D显示73个。在T1WI序列图像有24个椎体表现为弥漫性异常信号,49个椎体局部信号异常。Me-2D序列显示椎体局部受累病灶边缘及骨小梁结构清晰。结论SET1WI,TSET2WI及GREMe-2D序列结合能够更敏感地发现椎体受累早期改变。
Objective To investigate the value of different MR sequences in the diagnosis of early spinal metastases. Methods Twenty-five patients with suspected spinal metastases underwent spinal magnetic resonance imaging. Magnetic resonance scan sequences included spin echo (SE) T1WI, rapid spin echo (TSE) sequence T2WI, rapid inversion recovery sequence (STIR), gradient echo GRE) sequence two-dimensional multiple echo aggregation (Me-2D). Results Spinal metastases were found in 25 cases, involving 73 vertebral bodies and 45 appendages. Vertebral body abnormalities showed different conditions in each series. T1WI showed 73 abnormal vertebrae, 55 with T2WI, 69 with STIR and 73 with Me-2D. Twenty - six vertebral bodies in T1WI sequence showed diffuse abnormal signal and 49 vertebral body local signal abnormalities. Me-2D sequence showed that the vertebral body lesions and borderline trabecular clear structure. Conclusions The combination of SET1WI, TSET2WI and GREMe-2D sequences can detect the early changes of vertebral involvement more sensitively.