扩散张量成像技术在脑梗死患者肌力恢复情况预后判断中的价值初探

目的应用MR扩散张量成像（DTI）及扩散张量纤维束成像（DTT）技术对脑梗死患者进行检查,研究患者临床肌力表现及预后与皮质脊髓束的关系。方法对33例脑梗死患者行常规MRI检查及DTI检查,并进行皮质脊髓束三维DTT成像,与患者临床肌力表现及治疗结果相比较。结果患者临床肌力表现分为：肌力无减退13例,治疗后肌力恢复9例（急性期6例,亚急性期2例,慢性期1例）,无恢复11例（急性期5例,亚急性期3例,慢性期3例）,DTT图显示皮质脊髓束分别为无受压,受压无中断及中断、破坏。有肢体症状的20例患者,病变部位均位于皮质脊髓束走行区,病变范围均大于1.5cm。13例无肢体症状的患者,病变部位远离皮质脊髓束走行区或与之相邻,但病变范围较小,小于1.5cm。结论DTI及DTT技术,对脑梗死患者肌力恢复情况预后判断有重要价值。

Primary study on diffusion tensor imaging in diagnosis of prognosis of myodynamia recovery for patients with cerebral infarction

[Objective] To evaluate the relationship between cortical spinal tracts and myodynamia by diffusion tensor imaging(DTI) and diffusion tensor tract(DTT). [Methods] 33 patients with cerebral infarction were examined by conventional imaging and DTI, and the cortical spinal tract(CST) was performed DTT. The clinical appearance and the therapeutic result were compared. [Results] The 13 patients' myodynamia were normal, 9 patients' myodynamia recoverrd after therapy (6 acute, 2 subacute, and 1 chronic) and 11 pat...