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彩色多普勒血流显像(CDFI),是近年问世的心血管疾病诊断技术。由于 CDFI迅速、直观、简便的显示方式,为血流动力学的研究开辟了新的途径。一、诊断分流性先天性心脏病1.房间隔缺损(ASD):CDFI 对 ASD 的诊断不如对室间隔缺损敏感.根据目前国内外的报导,对左至右分流诊断的敏感性为70%—100%,特异性为90%—100%.能检出的最小缺损为3毫米。对诊断右至左分流的敏感性各家报导不一,但一致认为:对比超声心动图诊断右至左分流比 CDFI 更敏感.CDFI优于非彩色脉冲多普勒,在于它能分辨心腔
Color Doppler flow imaging (CDFI), is the advent of cardiovascular diagnostic technology in recent years. Due to the rapid, intuitive and easy display of CDFI, it opens up new avenues for the study of hemodynamics. First, the diagnosis of shunt congenital heart disease 1. Atrial septal defect (ASD): CDFI diagnosis of ASD is not as sensitive as ventricular septal defect.According to the current domestic and international reports, the sensitivity of left to right shunt diagnosis of 70% 100% with a specificity of 90% -100% The smallest defect that can be detected is 3 mm. Sensitivity to diagnosing right-to-left shunt varies widely, but it is agreed that contrast echocardiography is more sensitive than CDFI in diagnosing right-to-left shunting, and CDFI is superior to non-color impulse Doppler in that it distinguishes the heart chamber