Comparison of Limb and Precordial Vectorcardiographic Systems

Abstract

Two advanced types of vectorcardiographic systems have been applied to 104 miscellaneous patients for the purpose of comparing practical features and electric results. The 2 systems showed satisfactory average agreement, as expected, but there were marked individual differences in many cases. Despite corrections for torso shape and typical eccentric ventricle location, the limb electrode system yielded results significantly outside attainable limits, and hence is considered unsatisfactory for quantitative work despite its practical advantages.