短暂脑缺血发作患者颈动脉及椎动脉彩色多普勒监测

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。

Color Doppler Detection of Carotid and Vertebral Arteries in the Patients with Transient Ischemia Attacks

The bloodflows of 79 carotid and 122 vertebral arterles in the patients with transient ischemic attacks(TIA)were detected by 2-dimensional color Doppler flowing images(2D-CDFI).The results were compared with those detected in 60 normal persons.The carotid walls with atherosclerotic plaques were found in 15 cases(18. 97%).There was no statistically significant difference of hemodynamics between carotid wall with atherosclerotic plaque and normal carotid. Abnormal vertebral arteries were found in 58 cases(47.54%).The positive manifestations were:1.The diameters of 69. 62%vertebral arteries thinned less than 0.32cm;2.The Vmax of 51. 9%vertebral arteries decreased obviously less than 38cm/s; 3. Six vertebral arteries incurvated without or incompletely color filled;4.The local walls of vertebral arteries thickened and atherosclerotic plaques were found in 5 casex,2D-CDFl is a simply,direct and accurate method for diagnosing TIA when the lesions involves extracranial carotid and vertebral arteries.