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小儿先心病手术前最重要的确诊方法是心导管检查和彩色多普勒(CDI)。心导管检查是用X线不能透过的塑料导管由周围血管插入心脏和肺循环,以诊断心血管疾病和研究血流动力学改变。但属有创性检查,可给患儿带来一定的痛苦,也能发生一些并发症,如:心律紊乱、心壁穿孔、麻醉并发症、心衰甚至死亡。CDI是最新型的一种多普勒超声技术,既能实时显示心脏解剖结构,又有彩色血流信息成像;既可宏观寻查异常血流位置,又能微观精测各种流速数据。但也有不足之
Pediatric congenital heart disease before surgery the most important diagnostic methods are cardiac catheterization and color Doppler (CDI). Cardiac catheterization is the insertion of a percutaneous vascular catheter into the heart and pulmonary circulation through an X-ray impervious plastic catheter to diagnose cardiovascular disease and to study hemodynamic changes. However, an invasive examination can bring some pain to children and can also cause some complications such as heart rhythm disorder, perforation of the heart wall, complications of anesthesia, heart failure and even death. CDI is the latest type of Doppler ultrasound technology, both real-time display of cardiac anatomy, color blood flow imaging information; both macroscopic abnormal blood flow location, but also micro-precision measurement of various velocity data. But there are also shortcomings