Additional Data on Body Surface Potential Maps of Ventricular Repolarization in Normal Adults.
نویسندگان
چکیده
منابع مشابه
The effect of psychoemotional load on ventricular repolarization reflected in integral body surface potential maps.
The aim of the present study was to investigate the reflection of psychoemotional stress in the body surface potential distribution as documented by isointegral maps of cardiac activation and recovery. In 72 young men (18.3+/- 7.3 y.) with no cardiovascular history body surface potential maps (BSPMs) at rest and during the test of mental arithmetic were recorded. The digitalized data for each p...
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Use of activation-recovery interval (ARI) in surface ECG leads as possible indicator of changed repolarization in the underlying myocardium was studied. Model ECG data representing normal and pathological myocardium repolarization were simulated on surface of realistic inhomogeneous torso. Results of simulations suggest that shortening and prolongation of action potentials in anterior myocardia...
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Within-group variability of body surface potential maps was assessed on data from 685 carefully validated normal subjects (348 men and 337 women). Sources of within-group variability were evaluated by subgrouping maps by patient sex, age, height, and weight. Contribution of reproducibility error to total variance was assessed in a separate group of 52 normal subjects in whom multiple maps were ...
متن کاملInterpolation of body surface potential maps.
The performance of four methods for interpolation of body surface potential maps (BSPMs) for different electrode grid densities was assessed. This study is part of a research project on the influence of the variability of 12-lead electrocardiograms on computer interpretation due to small electrode position changes. Interpolated BSPMs can be used to simulate this variability. The set of BSPMs st...
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We suggested a method for localization of ischemic lesions from difference integral body surface potential maps (IBSPMs) computed by subtraction of IBSPM without manifestation of ischemia from the IBSPM during ischemia that can be obtained at rest and during the stress test. In this work the possible changes in IBSPMs of healthy subjects with increasing HR were studied. BSPMs were measured duri...
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ژورنال
عنوان ژورنال: Japanese Heart Journal
سال: 1997
ISSN: 0021-4868,1348-673X
DOI: 10.1536/ihj.38.473