彩色多普勒组织显像对显性预激症侯群预激部位定位初探  

Noninvasive Identification of the Preexcitation Position in WolffParkinsonWhite Syndrome by Using Doppler Tissue Imaging

作　　者：张友耿[1] 黎春蕾[1] 周玉清[1] 张青萍[1] 王琳[1] 陆再英 

机构地区：[1]同济医科大学附属同济医院超声科

出　　处：《中华超声影像学杂志》1998年第1期7-9,共3页Chinese Journal of Ultrasonography

摘　　要：彩色多普勒组织成像（ＤＴＩ）是多普勒超声中的一项新技术，可用于研究心肌运动速度和时序。本文应用ＤＴＩ的加速度模式，对２１例显性预激症侯群（ＷＰＷ）患者，在射频消融治疗前后进行预激旁路定位研究，与消融时心内电生理定位比较。结果显示，ＤＴＩ对预激部位定位正确率为８１％。Doppler Tissue Imaging (DTI) is a new technique of Doppler ultrasound and can be used to quantify the velocity of the myocardial movement.The acceleration mode of the DTI is a sensitive method to evaluate the time sequence of myocardial excitation. In 21 patients with WolffParkinsonWhite syndrome (WPW),the position of myocardial preexcitation was identified by using the acceleration mode of DTI, and compared with the intracardiac electrophysiological location of the bypass tract during the rediofrequency ablation. The results demonstracted that the DTI could accurately indicate the location of the bypass tract of the WPW in 81% of all patients. This preliminary study shows that DTI is a very promising new method for the noninvasive investigation of abnormal myocardial depolarisation, including the location of the bypass tract in WPW, and the realtime monitoring of radiofrequency ablation.

关 键 词：彩色多普勒 组织显像 预激综合征 

分 类 号：R541.77[医药卫生—心血管疾病]