Evaluation of esophageal electrodes for recording His-Purkinje activity based upon signal variance.
D000328:Adult; D001698:Biomedical Engineering; D002036:Bundle of His / Q000502:physiology*; D004566:Electrodes; D004594:Electrophysiology; D004947:Esophagus; D006329:Heart Conduction System / Q000502:physiology*; D006801:Humans; D008297:Male; D011690:Purkinje Fibers / Q000502:physiology*