When people show signs of having a heart attack an electrocardiograph (EKG) is often used to diagnose their condition  In a study, a computer program for EKG diagnosis of heart attacks was pitted against a very experienced, highly skilled cardiologist  The program correctly diagnosed a significantly higher proportion of the cases that were later confirmed to be heart attacks than did the cardiologist
Interpreting EKG data, ttherefore, should be left to computer programs
In a considerable percentage of cases, EKG data alone are insufficient to enable either computer programs or cardiologists to make accurate diagnoses.