彩色多普勒超声与三维增强磁共振血管成像在糖尿病椎-基底动脉供血不足患者诊断中的应用比较

Application and comparison between CDFI and 3D CE MRA in diagnosing vertebral arterial insufficiency of diabetes mellitus

目的探讨彩色多普勒超声(CDFI)与三维增强磁共振血管成像(3D CE MRA)在糖尿病椎-基底动脉供血不足(VBI)患者病因诊断中的价值。方法对46例糖尿病患者临床诊断椎-基底动脉供血不足患者行3D CE MRA及CDFI检查,观察椎动脉走形、管径,是否存在狭窄、血流参数以及病变的部位。结果CDFI检查阳性38例,其中单侧椎动脉受累32例,双侧受累6例。3D CE MRA检查阳性发现者40例,其中单侧椎动脉受累33例,双侧受累7例,两种方法对对椎动脉狭窄诊断符合率较高(平均88.1%),对椎动脉闭塞的诊断符合率为100%。结论CDFI检查对细小的局限性病变及其所致狭窄的诊断较准确,检查中可变换体位,缺点是由于骨骼干扰不能全面显示椎动脉整体结构。3D CE MRA容易诊断弥漫性长节段狭窄,闭塞及走形异常,不足之处为对局部微小病变及所致狭窄诊断率稍低,检查中无法随时改变体位。

Objective To evaluate the diagnostic values of color doppler flow imaging(CDFI)and three dimentional contrast enhance magnetic resonance angiography(3D CE MRA)in patients with vertebral arterial insufficiency of diabetes mellitus.Methods Fourty-six vertebral arterial insufficiency patients in diabetes mellitus were diagnosed clinically.All the patients were examined by CDFI and 3D CE MRA to investigate the tracks,diameters and stenosis location of vertebral arterials.Results CDFI was positive in 38 patients...