【摘要】 目的 探讨二维多普勒组织加速度图(2D-Doppler tissue acceleration，2D-DTA)技术对预激综合征(wolf-parkinson-white syndrome,WPW)旁道定位的可行性和准确性。方法 选择60例体表心电图诊断为WPW的患者，在行导管射频消融(radiofrequency catheter ablation,RFCA)术前，采用2D-DTA初步确定旁道位置即最早心室激动点，并以心内膜靶点准确定位标测做对照。结果 DTA 技术所确定的心室最早激动亮点出现时限与同步记录的心电图δ波出现时限完全相同，DTA技术对旁道定位的准确性79%。结论 DTA能比较直观地确定旁道位置，评价RFCA的效果，该技术无创、安全、重复性良好，为心内电生理标测技术有益的补充。

    关键词 多普勒组织成像 旁道 预激综合征

    Study of Doppler tissue acceleration localizing manifest accessory pathways in wolf-parkinson-white syndrome

    Gu Xiang,Cao Kejiang,Chen Yong,et al.

    Department of Cardiovascular,Affiliated Hospital of Yangzhou University,Yangzhou 225001.

    【Abstract】 Objective To investigate the feasibility and accuracy of Doppler tissue acceleration (DTA) technique evaluating early ventricular contraction associated with manifest accessory pathways (MAP) in wolf-parkinson-white (WPW) syndrome.Methods 60 patients with WPW syndrome were examined to localize the AP preliminarily by using the DTA before radiofrequency ......