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目的观察ＭＲＩ各序列对脊椎转移瘤的诊断价值并分析其ＭＲＩ征象。方法对２２例脊椎转移瘤病人行Ｔ１ＷＩ，Ｔ２ＷＩ，Ｐ（Ｎ）Ｉ，小翻转角准Ｔ２ＷＩ等序列检查并对病变信号的清晰度分级。结果Ｔ１ＷＩ和小翻转角准Ｔ２ＷＩ对病变检出率高且较清晰。脊椎转移瘤的ＭＲＩ征象包括：①早期为长Ｔ１长Ｔ２均匀信号；②椎体破坏压缩时信号混杂；③附件转移均为长Ｔ１长Ｔ２／信号且易形成软组织肿块和脊髓压迫；④邻近椎间盘可有信号改变。结论ＭＲＩ，Ｔ１ＷＩ和小反转角Ｔ２ＷＩ对显示病变的信号、大小和数目较好。
Objective To observe the diagnostic value of MRI sequences in spinal metastases and analyze their MRI signs. Methods Twenty-two patients with metastases from the spine were examined on T1WI, T2WI, P(N)I, and T2WI with small flip angles, and the clarity of the lesion signal was graded. Results The detection rate of lesions was high and clear on T1WI and T2WI. MRI signs of spinal metastases include: 1 early long T1 long T2 uniform signal; 2 vertebral destruction and compression signal mixed; 3 attachment transfer are long T1 long T2/signal and easy to form soft tissue mass and spinal cord compression; 4 adjacent intervertebral disc There may be signal changes. Conclusions The signal, size and number of lesions on MRI, T1WI and T2WI are better.