The abnormal initial contractions in both planar and tomographic phase image were compared with the sites of accessory pathway (ACP) based on ECG and radiofrequency ablation .

• 用平面和断层时相分析对预激综合征病人进行旁道定位，并分别同射频消融术所证实的旁道定位与心电图的旁道定位对比。