Meterials and Methods: Cardioangiography images were measured in sixty three cases of Tetralogy of Fallot by using DAR 2400 digital subtraction angiography. This data was compared with postoperative results of patients.

• 材料和方法：采用DSA?2400型数字减影血管造影机（DSA）测量了63例法乐四联症患者心血管造影图像，并与手术结果进行对照分析。