颈动脉的多普勒超声诊断

本文报道颈动脉多普勒超声检查与血管造影对比资料64例69侧次的结果。病例包括临床诊断为脑血栓形成、蛛网膜下腔出血和颈动脉病变者。以多普勒检查波形、波幅差率、舒末差率、颞浅动脉压迫试验及阻力指数作为观察指标,取得有关正常值。本法无损伤、迅速;对预内动脉狭窄超过50％以上、颈外动脉动静脉瘘、引起颅内血流增加的颅内病变的诊断有较大可靠性。

CAROTID DOPPLER ULTRASONOGRAPHIC DETECTION

Sixty-four patients with clinical diagnosis of cerebral thrombosis, subarachnoid hemorrhage, cerebral vascular malformation, and carotid arterial lesion, submitted to both caroted Doppler ultrasonographic detection (CDUD) and arteriography were analysed ( a total of 69 time-sides of carotid arteriography and 5 cases bilaterally).In contrast to arteriography the diagnosis was accurately establiahed by CDUD in 37 patients, including 28 normal carotids, 6 extracranial internal carotid occlusions, 2 internal carotids narrowing by more than 50%, and 1 external carotid arteriovenous fistula. There were no false positive and no false negative in detection of internal carotid constriction by more than 50%.In cases of carotid arteries narrowing by less than 50%. dodichocarotid with minimal kinking and intracranial arterial obstructions, CDUD is of no use in diagnostic approach.