74例缺血性脑血管病颈动脉超声多普勒检测及其临床

The Ultrasonic Quantitative Blood Measurement and Clinic 74 Patients with Ischemic Cerebrovascular Diseases

使用多普勒超声血流计量仪(QFM),对74例有 CT 脑扫描资料的缺血性脑血管病病人,进行了双侧颈总动脉血流各值的测定,发现异常者39例.随后对此39例作颈动脉 B 超,并对其中4例作了脑血管造影,其中27例证实颈动脉颅外段病变。作者根据临床表现,CT 资料、颈动脉 B超以及脑血管造影进行全面分析,认为 QFM 对颈部血管病检查有一定可靠性,特别是临床表现为缺血性脑血管病,而 CT 扫描正常者,QFM 异常可提示颈内动脉颅外段病变,并作为 CT 检查的补充.研究还发现,颈动脉系循环阻抗,可作为判断脑动脉硬化的计量参考指标.

By use of the ultrasonic quantitative blood flow measurement system (QFM),blood flow in both common carotid arteries were detected in 74 patients with ischemie stroke.In thorn CT scan was all performed.The resultss bowed that 39 of them patients with abnormal QFM were founded.Subsequently, carotid artery ultrasonic imaging was performed in the 39 patients.The results showed that extracranial stenoses or occlusions were demonstrated in 27 of the 39 patients with abnormal QFM.According to their histories, clinical finding,CT scan,carotid ultrasonic imaging and angiography,results suggest that there is a certain reliabitity of QFM to detect the cervical partion of carotid arteries.The abnormal QFM of patients with ischemic stroke may indicate the presence of extracranial carotid stenesis or occlusion,especially in patients both apparent in clinical symptomes and normal in CT scan.Thus,it is valuable to use QFM even after normal CT scan.His also found that the caroti dand cerebral circulation resistance(o)could be considered as quantitative indexes to assess cerebral atherosolerosis.