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评估颈动脉CT血管成像(CTA)对狭窄进行分级的最佳方法,比较目测与尺测,确定相对于数字减影血管造影(DSA)的观察者间差异及一致性。对46例有症状的颈动脉狭窄病人、55条颈动脉行CTA及DSA。CTA对狭窄的定量使用目测法(CTAVE)(方法1),与主观最佳宽视窗下的尺测法(方法2)或预设的对比依赖
The best way to assess stenosis by carotid artery CT angiography (CTA) was to compare the visual and the ruler measurements to determine interobserver differences and coherence with respect to digital subtraction angiography (DSA). In 46 patients with symptomatic carotid stenosis, 55 carotid arteries underwent CTA and DSA. CTA visualization of stenosis (CTAVE) was used (method 1), in contrast to the subjective best width-window ruler (method 2) or a preset contrast