多普勒组织成像对预激旁道的定位初探  

Preliminary Application of Doppler Tissue Imaging Technique in Evaluating Accessory Pathways in Wolff-Parkinson-White Syndrome

作　　者：王钰[1] 陆映珠[2] 郭涛[1] 顾云[1] 赵玲[1] 刘中梅[1] 李淑敏[1] 

机构地区：[1]昆明医学院第一附属医院心内科,云南省昆明市650031 [2]昆明医学院第二附属医院心内科

出　　处：《中国循环杂志》2002年第6期415-417,共3页Chinese Circulation Journal

摘　　要：目的 :评价多普勒组织成像 (DTI)探测显性预激旁道的准确性及其临床应用价值。方法 :9例临床明确诊断为预激综合征致阵发性房室折返性心动过速的患者 ,应用DTI寻找到与心电图δ波起始部同步出现的心室内异位兴奋点 ,与心内电生理检查和射频导管消融术的标测靶点相比较。结果 :DTI对 9例患者房室旁道的定位除 1例位置偏前外其余都与心内电生理检查相吻合 ,对 1例存在双侧旁道的患者更体现了DTI的指导意义。结论 :在DTI的帮助下 ,医患双方接受的射线量减小 ,手术操作时间缩短 ,消融彻底无复发。Objective: To examine the accuracy and practical value of radiofrequency catheter ablation(RFCA). Methods: We used Doppler tissue imaging(DTI) technique to analyze the different early contraction sites, which were coded by a yellow or green color spot appearing at the time of the δ wave in the electrocardiogram in 9 patients with Wolff Parkinson White(WPW) syndrome. Results: The DTI determined early contraction sites coincided with the sites of the accessory pathways determined by the electrophysiologic examination. Moreover,DTI helped us detect two accessory pathways in one patient diagnosed as WPW syndrome before RFCA. Conclusion: DTI system is helpful for the location of the accessory pathways, which makes the RFCA successful,shortens the operating time and reduces X ray exposure.

关 键 词：预激旁道 定位 多普勒组织成像 预激综合征 心内电生理检查 射频导管消融术 

分 类 号：R445.1[医药卫生—影像医学与核医学] R541.[医药卫生—诊断学]