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目的与方法 :用 TCD和 CDFI观察了 4 4例椎基底动脉供血不足 ( VBI)患者颅内、外血管的血流动力学 ,颈动脉和椎动脉形态、结构。结果患者组存在颈动脉、椎动脉内中膜增厚、内膜面粗糙 ,斑块 4 2处 ,平均血流速度减慢 ,搏动指数、阻力指数增高。结论 :提示患者组存在动脉粥样硬化 ,脑供血不足。TCD和 CDFI联合检查可系统地了解颅内外的供血情况及血管的形态、结构 ,可作为 VBI病因诊断、治疗效果观察的客观依据。
PURPOSE AND METHODS: The hemodynamics of intracranial and extravascular vessels, morphology and structure of carotid artery and vertebral artery in 44 vertebrobasilar insufficiency (VBI) patients were observed by TCD and CDFI. Results There were carotid artery and vertebral artery intima-media thickening and rough endometrial surface in 42 patients. The average blood flow velocity slowed down, and the pulsatility index and resistance index increased. Conclusion: It is suggested that there is atherosclerosis in patients with cerebral insufficiency. TCD and CDFI joint examination can be systematically understand the intracranial blood supply and vascular morphology and structure, can be used as an etiological diagnosis of VBI, objective observation of the therapeutic effect.