Algorithm matches human cardiologists in detecting heart attacks

One of the best ways to diagnose a heart attack is to use an electrocardiograph to measure the electrical output from the heart. A standard ECG records the electrical signal from 12 different leads attached to different parts of the patient's body. These signals reveal the electrical behavior of the heart in various ways. Cardiologists have long known that the signals from some of these leads are more useful diagnostically than others when it comes to heart attacks. But interpreting the data is hard.