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本义运用二维彩色多普勒血流图（２Ｄ－ＣＤＦＩ）对短暂脑缺血发作（ＴＩＡ）患者进行７９例颈动脉和１２２例推动脉颅外段血流监测，并与６０例正常人测值对照，发现颈动脉壁粥样硬化斑片１５例，占１８．９７％，其血流动力学与正常相比无显著差异。椎动脉异常４７．５８例，占４７．５４％，表现为：①管径变细，Ｄ＜０．３２ｃｍ者５５支占６９．６２％；②Ｖｍａｘ明显降低，＜３８ｃｍ／ｓ者４１支占５１．９％；③血管走行扭曲，彩色充盈差或不显色，本组病例中有６支椎动脉；④少数患者椎动脉内膜增厚，有粥样硬化斑片，本组发现５例。结果表明：对于因颈椎动脉颅外段病变引起的ＴＩＡ，２Ｄ－ＣＤＦＩ不失为简便、直观和准确的诊断方法。
The original meaning of two-dimensional color Doppler flowgraphy (2D-CDFI) for transient ischemic attack (TIA) patients with 79 cases of carotid artery and 122 cases of extracranial artery blood flow monitoring, and 60 cases of normal people measured Value of control, found that carotid atherosclerotic plaque in 15 cases, accounting for 18.97%, the hemodynamics compared with normal no significant difference. Abnormal 47.58 cases of vertebral artery, accounting for 47.54%, manifested as: ① diameter thinner, D <0.32cm 55 accounted for 69.62%; ② Vmax significantly reduced, <38cm / s 41 accounted for 51 .9%; ③ distorted blood vessels, poor color filling or no color, in this group of patients with 6 vertebral artery; ④ a few patients with vertebral artery intimal thickening, atherosclerotic plaques, the group found in 5 cases. The results show that TIA and 2D-CDFI are the simple, intuitive and accurate diagnostic methods for the extracranial lesions of the cervical vertebral artery.