Positions of 18 monitoring leads electrodes can reflect objective change of ST-T and QRS waves of routine 18-lead electrocardiogram. This method may be used widely.

This paper introduces a data acquisition circuit that is able to acquire ventricular late potentials and standard 12-lead electrocardiogram signals.

Objective To explore difference of t wave shape in right precordial lead electrocardiogram between normal male and female and its clinical value.