Localization of late potentials using body surface mapping
نویسندگان
چکیده
منابع مشابه
Localization of Accessory Pathway in the Heart Using Body Surface Potentials
Results of noninvasive localization of arrhythmogenic tissue in the heart are presented. Location of the accessory pathway in preexcitations was estimated by inverse computations using body surface ecg potentials from limited number of leads, approximate geometry of the patient torso and multiple dipole model of cardiac electric generator. The method was first tested on simulated ecg data and i...
متن کاملResolution of pace mapping stimulus site separation using body surface potentials.
BACKGROUND Several studies have related 12-lead ECG waveform during ventricular tachycardia to ECG waveform during ventricular pacing to identify ablation sites for therapy of ventricular tachycardia. QRS isopotential maps and QRS isointegral maps derived from body surface isopotential maps have also been correlated with left ventricular pacing sites with the same objective. The comparison proc...
متن کاملCharacterization of the spatial distribution of late ventricular potentials by body surface mapping in patients with ventricular tachycardia.
Low-level activity at the end of the QRS complex was analyzed from 63 thoracic leads in 15 normal subjects and in 21 patients with ventricular tachycardia (VT). The latter had old myocardial infarction and no conduction disturbances and had not been receiving antiarrhythmic drugs. In both normal subjects and patients with VT, isopotential maps of the time-averaged and filtered (25 Hz high-pass)...
متن کاملThe Use of Simultaneous Multichannel Endocardial and Surface Electrocardiograms for Verification of Exit Site Localization Using Body Surface Mapping
Exit sites of monomorphic ventricular tachycardia and focal sites of ventricular extrasystoles can be localized using an endocardial catheter in conjunction with a multichannel surface ECG, in order to find a suitable site for ablation. For this procedure, as well as for the diagnosis of these types of arrhythmia it is desirable to know the relation between surface ECG and site of origin accura...
متن کاملBody surface late potentials: effects of endocardial resection in patients with ventricular tachycardia.
We studied 37 patients undergoing endocardial resection for medically refractory ventricular tachycardia (VT). Each was studied before and after surgery by programmed ventricular stimulation and signal-averaged electrocardiography. Low-amplitude late potentials were identified preoperatively in 76% of patients. In the 24 patients without postoperative VT the effect of surgery was to shorten the...
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ژورنال
عنوان ژورنال: Biomedizinische Technik/Biomedical Engineering
سال: 2001
ISSN: 0013-5585,1862-278X
DOI: 10.1515/bmte.2001.46.s2.204