摘要64层容积CT(VCT)冠状动脉成像(CTA)作为一种安全、可靠和无创伤的影像学检查方法,已广泛用于冠状动脉狭窄的定量评价和介入治疗的筛选。目前公认其具有较高的特异性,但却有一定的假阳性,或者将病变程度严重化。检查前对患者进行3～5d常规的抗凝、扩管、对症等治疗,可明显减少假阳性的发生率(23.2% vs 3.8%)。
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