[Location of the pre-excitation part in Wolff-Parkinson-White syndrome by Doppler tissue imaging].
[Location of the pre-excitation part in Wolff-Parkinson-White syndrome by Doppler tissue imaging].
Where did the research take place?
The study site has not been established. Author addresses may differ from where the research occurred.
CN · Author affiliation · country only
Department of Ultrasonography, Second Xiangya Hospital, Central South University, Changsha 410011, China.Location evidence
A plain-language reading has not been prepared for this paper yet.
Original abstract
OBJECTIVE: To evaluate the feasibility of newly developed Doppler tissue imaging (DTI) for locating the early contraction sites in Wolff-Parkinson-White (WPW) syndrome. METHODS: The time-sequential changes in ventricular wall motion of thirty-three patients suffering from WPW syndrome were examined by DTI. The pre-excitation site was represented as a red region appearing on the myocardium right after the delta wave of the electrocardiogram and confirmed by electrophysiology. RESULT: Of 21 patients with left-sided accessory pathways, the early contractive sites were correctly identified by DTI in 18 patients, while the sites were determined by DTI in 8 of 12 patients with right-sided accessory pathways. There was no significant difference between the two groups (P > 0.05). CONCLUSION: The DTI system is helpful to localize the accessory pathways and evaluate the results after radiofrequency ablation.