Stress testing is one of the most widely used tools in cardiology. It provides diagnostic and prognostic information in patients with suspected or known coronary heart disease, and is a useful tool for assessing the…

The electrocardiogram (ECG) is a visual representation of the electrical impulses generated by the heart with each beat. Ever since Willem Einthoven developed the ECG in the early 1900s, it has become an invaluable tool…