The Relationship of Unipolar Chest Leads to the Electrical Field of the Heart

Abstract

Using a method for measuring the electrical forces of the human heart in three dimensional space, studies of the precordial leads are reported which were designed to determine whether these deflections are principally measurements of the electrical field of the heart as a whole or are dominated by the forces from the region of the heart immediately beneath the electrode. It was found that the former was the case, which leads to a simpler and more rational method for interpreting the electrocardiogram than has been available heretofore.