Cerebrovascular disease is one of the common illnesses threatening humankind’s health, of which the speciifc one is stroke, with characteristics of high morbidity rate, high disability rate, high death rate and multiple complications. The cerebrovascular hemodynamic parameters and the spectrum features of blood lfow signals are critical factors for early diagnosis of cerebrovascular disease, and the common carotid arteries usually act as the important window for detecting and analyzing these parameters. In this study, a system and device for detecting and analyzing the hemodynamic parameters and spectrum features of blood lfow signals in the common carotid arteries is proposed. By comparing the detecting and analyzing results from the proposed system and device with those from Aloka Color Doppler Ultrasound, it is found that the system and device proposed in this study has high accuracy and provides much more plentiful hemodynamic information of the common carotid arteries. Comparing with Aloka Color Doppler Ultrasound, it’s structure-simpler, cheaper, more portable and practical and would be able to be applied to the early diagnosis of cerebrovascular disease in the future.%脑血管疾病是危害人类健康的常见病症之一，特别是脑卒中，具有高发病率、高致残率、高死亡率、高复发率和多并发症的特点。脑血管血流动力学参数和血流信号频谱特征参数是早期诊断脑血管疾病的重要参数，而颈总动脉是检测和分析这些参数的重要窗口。本文设计了一种能检测和分析颈总动脉血流动力学参数和血流信号频谱特征参数的系统和装置。将本文装置检测和分析的结果与日本Aloka公司的彩色超声多普勒检测和分析的结果进行比较，表明本文所设计的系统和装置具有较高的准确性，可提供更加丰富的颈总动脉血流动力学信息。与Aloka公司的彩超相比，该系统装置具有结构简单、经济实用、便于携带、操作简便等优点，可望应用于脑血管疾病的早期诊断。
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