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electrogram
electrogram (ɪˈlɛktrəʊˌɡræm) na record of an organ's electrical activity, measured by monitoring changes in electric potentialelectrogram
electrogram[i′lek·trə‚gram] (electronics) A record of an image of an object made by sparking, usually on paper. (meteorology) A record, usually automatically produced, which shows the time variations of the atmospheric electric field at a given point. (physiology) The graphic representation of electric events in living tissues; commonly, an electrocardiogram or electroencephalogram. electrogram
electrogram [e-lek´tro-gram] 1. any record produced by changes in electric potential.2. specifically, a cardiogram taken from the chambers of the heart or from a specific position within the chambers.His bundle electrogram an intracardiac electrogram of potentials in the lower right atrium, atrioventricular node, and His-Purkinje system, obtained by positioning intracardiac electrodes near the tricuspid valve; it is used to pinpoint the site, extent, and mechanisms of arrhythmias and conduction defects.intracardiac electrogram a record of changes in the electric potentials of specific cardiac loci as measured by electrodes placed within the heart via cardiac catheters; it is used for loci that cannot be assessed by body surface electrodes, such as the bundle of His or other regions within the cardiac conducting system. e·lec·tro·gram (ē-lek'trō-gram), 1. Any record on paper or film made by an electrical event. 2. In electrophysiology, a recording taken directly from the surface by unipolar or bipolar leads. electrogram Cardiology The recording of the cardiac waveforms as taken at an electrode in the heart; electrogram may be transmitted from an implanted pacemaker by telemetrye·lec·tro·gram (ĕ-lek'trō-gram) 1. Any record on paper or film made by an electrical event. 2. electrophysiology A recording taken directly from the surface by unipolar or bipolar leads. |