【摘要】 目的 探讨磁共振3D-CISS序列在中脑导水管梗阻诊断中的应用价值。方法 利用3.0T超导MR扫描仪对46例中脑导水管梗阻患者脑部进行FLASH T₁ WI、TSE T₂ WI和3D-CISS序列扫描,并对3D-CISS序列原始图像进行重建,观察3种序列对中脑导水管结构的显示情况,进行对比分析。结果 FLASH T₁WI、TSE T₂WI及3D-CISS序列对中脑导水管梗阻病变显示率分别为13%、71.7%、100%。3种序列两两对比均有显著差异（P<0.016 7）。结论 3D-CISS序列在显示中脑导水管梗阻病变方面较常规序列存在优势。更多还原

【Abstract】 Objective To explore the value of three-dimensional constructive inference in steady state sequence（3D-CISS sequence） in case of midbrain aqueduct obstruction.Methods 46 cases with midbrain aqueduct obstruction were scanned with FLASH T₁ WI、TSE T₂ WI and 3D-CISS sequence at 3.0T superconductive MR scanner.The original images of the 3D-CISS sequence were reconstructed.The images of three sequences showing midbrain aqueduct obstruction were observed and analyzed.Results The detection rate of the midbrain aqueduct obstruction was 13% 、71.7% and 100% in FLASH T₁ WI、TSE T₂ WI and 3D-CISS sequence,respectively.The difference between the three sequences were significant（P<0.0167）.Conclusion 3D-CISS sequence shows midbrain aqueduct obstruction more accurately.更多还原