Torvaldsen S, McCauley J, Patel A S, Chakera T M
Med J Aust. 1985 May 13;142(10):542-5.
Carotid artery disease is an important factor in the aetiology of stroke and cerebrovascular insufficiency. Angiography remains the definitive technique for the investigation of the carotid arteries, but the risk and expense involved has stimulated research into suitable non-invasive techniques. A comparison between a velocity-sensitive, colour-coded Doppler principle ultrasound flowmeter (Echoflow) and conventional angiography was conducted on 52 patients (101 arteries) investigated at Royal Perth Hospital over a 16-month period. An acceptable correlation was found in 78% of cases. Echoflow scanning proved to be particularly accurate in assessing normal arteries. Our results support the use of Echoflow as a first line of investigation, and in aiding the selection of cases requiring further study, although we caution against routine angiography in all patients with positive Echoflow scan results.
颈动脉疾病是中风和脑血管供血不足病因中的一个重要因素。血管造影术仍然是检查颈动脉的决定性技术，但所涉及的风险和费用促使人们对合适的非侵入性技术展开研究。在皇家珀斯医院为期16个月的时间里，对52例患者（101条动脉）进行了一项速度敏感型、彩色编码多普勒原理超声流量计（Echoflow）与传统血管造影术的对比研究。78%的病例中发现了可接受的相关性。Echoflow扫描在评估正常动脉方面被证明特别准确。我们的结果支持将Echoflow用作一线检查手段，并有助于选择需要进一步研究的病例，不过我们提醒不要对所有Echoflow扫描结果呈阳性的患者进行常规血管造影。
