BODY SURFACE POTENTIAL MAPPING IN HYPERTENSIVE RAT DURING VENTRICULAR DEPOLARIZATION

Imaging electrocardiographic dispersion of depolarization and repolarization during ischemia: simultaneous body surface and epicardial mapping.

BACKGROUND Myocardial ischemia creates abnormal electrophysiological substrates that result in life-threatening ventricular arrhythmias. Identifying patients at risk of such abnormalities by use of body surface electrical measures is controversial. We investigated the sensitivity of torso measures, recorded simultaneously with epicardial electrograms, to changes in dispersion of depolarization ...

Body surface distribution of equipotential lines during atrial depolarization and ventricular repolarization.

Body Surface Potential Mapping Data Conversion Method

Abstract. In body surface potential mapping, data conversion can be required whenever merging data sets taken by slightly different data acquisition systems. In this case, we face with a kind of conversion problem. This paper describes a method for solving the problem according to the least-square principle, so the datasets of physically different body surface potential mapping systems become c...

Body surface distribution of electrical potential during atrial depolarization and repolarization.

Limited information is available documenting body surface isopotential distributions during atrial excitation and recovery. To expand the current data base, body surface isopotential maps from 40 normal subjects were examined. Data were acquired at a gain of 10,000 and isopotential distributions constructed at 2-msec intervals from the onset of the P wave to the onset of the QRS complex. During...

Ventricular electrical activation in cardiac resynchronization as characterized by body surface potential mapping.

OBJECTIVES To assess cardiac electrical activation by using body surface potential mapping (BSPM), in patients with congestive heart failure (CHF) and left bundle branch block (LBBB) undergoing cardiac resynchronization therapy (CRT) with biventricular pacemaker (BIV-PM) implantation. METHODS Mean cardiac electrical activation times were analyzed in the right ventricle (RV) (mean RV activatio...