van Oosterom A
Department of Cardiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
J Electrocardiol. 2004;37 Suppl:193-7. doi: 10.1016/j.jelectrocard.2004.08.056.
This contribution discusses the dominant T wave, a concept providing an overall view on the repolarization currents of the ventricular myocardium. The dominant T wave is a weighted mean of the T waves on the body surface. It can be estimated from the matrix of sampled observed potentials. The timing of its peak reveals the mean of the repolarization times of the involved transmembrane potentials. Its amplitude is independent of the volume conductor properties of the tissues surrounding the heart.
本文讨论了主导T波,这一概念提供了对心室肌复极化电流的整体视图。主导T波是体表T波的加权平均值。它可以从采样观测电位矩阵中估算出来。其峰值出现的时间揭示了所涉及跨膜电位复极化时间的平均值。其幅度与心脏周围组织的容积导体特性无关。