摘要
目的探讨彩色多普勒诊断颈内动脉狭窄的方法及准确性。方法采用彩色多普勒检测８３例颈动脉硬化症患者，１２８侧颈内动脉起始处有不同程度狭窄。按狭窄程度分成三组，轻度（１～３９％）６９侧，中度（４０～６９％）４４侧，重度（７０～９９％）１５侧。测定颈内动脉收缩期峰值流速（ＩＣＡＳＰＶ）及颈内动脉与颈总动脉流速之比（ＶＩＣＡ／ＣＣＡ）。结果轻度狭窄时血流无明显改变，中度狭窄时，ＩＣＡＳＰＶ及ＶＩＣＡ／ＣＣＡ轻度增加；重度狭窄时，狭窄口呈现五彩色血流信号，ＩＣＡＳＰＶ及ＶＩＣＡ／ＣＣＡ均明显增加；尤以ＶＩＣＡ／ＣＣＡ敏感。部分超声检测结果与动脉造影及／或手术对照符合率为８９７１％。结论超声检查诊断颈内动脉起始处狭窄准确、无创，可作为临床首选方法；判断狭窄程度应以颈内与颈总动脉流速之比作为主要依据，结合峰值流速及二维切面图检测情况；中度狭窄，ＶＩＣＡ／ＣＣＡ＞１４，ＩＣＡＳＰＶ＞９５ｃｍ／ｓ；重度狭窄，ＶＩＣＡ／ＣＣＡ＞３０，ＩＣＡＳＰＶ＞２００ｃｍ／ｓ。
Objective To determine method and accuracy of color Doppler in
diagnosing the stenosis of internal carotid artery.Methods We detected 128 internal carotid
arteries with atherosclerotic stenosis in 83 cases by color Doppler.All studies were divided into
three groups upon the degree of stenosis:slight (1～39%)69;moderate (40～69%)44; severe
(70～99%)15.Peak systolic velocity in internal carotid artery (ICASPV) and ratio of internal
carotid artery velocity to common carotid artery velocity (VICA/CCA) were measured.Results No
significant hemodynamic changes occurred in slight group;ICASPV and VICA/CCA elevated
slightly in moderate group;the color mosaic were presented in severe group,ICASPV and
VICA/CCA were increased significantly,especially VICA/CCA.A part of results were compared with
digital subtraction angiography (DSA) and/or operation.The accuracy was 89.71%.Conclusion
Sonographic scanning is an accurate,noinvasive method in diagnosing the internal carotid
artery stenosis and may be selected primarily in clinic.Determination of stenosis should be
upon VICA/CCA,combining with the ICASPV and 2 D scanning,moderate
stenosis:VICA/CCA>1.4,ICASPV>95cm/s;severe:VICA/CCA>3.0,ICASPV>200cm/s. [
出处
《中国医学影像技术》
CSCD
北大核心
1999年第3期181-182,共2页
Chinese Journal of Medical Imaging Technology
关键词
颈内动脉狭窄
诊断
彩超
准确性
Internal carotid artery Stenosis Color Doppler diagnosis
