CAJ | 학술논문

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%.本研究表明DTI开创了WPW预激旁路无创性定位研究的新领域.
채색다보륵조직성상(DTI)시다보륵초성중적일항신기술,가용우연구심기운동속도화시서.본문응용DTI적가속도모식,대21례현성예격증후군(WPW)환자,재사빈소융치료전후진행예격방로정위연구,여소융시심내전생리정위비교.결과현시,DTI대예격부위정위정학솔위81%.본연구표명DTI개창료WPW예격방로무창성정위연구적신영역.
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 intraeardiac electrophysiological location of the bypass tract during the rediofrequency ablation.The results demonstracted that the DTI could accurately indieate 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.