[Multiple chest leads to evaluate the course of acute myocardial infarction (author's transl)].

At present, precordial mapping is the only reliable method to define the course of myocardial ischemia in patients with acute myocardial infarction. To improve registration technique and evaluation an elastic synthetic plate with 48 electrodes and a computer program for calculation of the different ecg-changes have been developed. Registration and evaluation require an average period of 15 minutes (+/-3 minutes) thus allowing repeated application within time intervals.