Kadota E, Kaneda H, Makinaga G, Taneda M, Irino T
Stroke. 1982 May-Jun;13(3):381-5. doi: 10.1161/01.str.13.3.381.
Reversed ophthalmic blood flow in the occlusions (33 patients) and stenoses (11 patients) of the internal carotid artery (ICA) was examined using the ultrasonic Doppler technique. The Doppler shift frequencies of the blood flow signal were analyzed to obtain their sound spectrogram. In stenosis of the ICA, "presystolic notch" was more frequently observed and "d/S" value (S, d; maximum blood flow velocity at systolic and diastolic) was smaller than in occlusion. These two characteristics of stenosis distinguish it from occlusion with 89% accuracy although this method is applicable only for the patients with reversed ophthalmic blood flow.
采用超声多普勒技术对33例颈内动脉（ICA）闭塞和11例ICA狭窄患者的眼动脉血流逆转情况进行了检查。对血流信号的多普勒频移进行分析以获得其声谱图。在ICA狭窄中，“收缩前期切迹”更为常见，且“d/S”值（S、d分别为收缩期和舒张期最大血流速度）小于闭塞患者。狭窄的这两个特征可将其与闭塞区分开来，准确率达89%，尽管该方法仅适用于眼动脉血流逆转的患者。
