Drawing of the ECG, with labels of intervals<unk>  is the science of elucidating, diagnosing, and treating the electrical activities of the heart. The term is usually used in a clinical context to describe studies of such phenomena by invasive (intracardiac) catheter recording of spontaneous activity as well as of cardiac responses to programmed electrical stimulation (PES), see Clinical<unk> .<unk>  also encompasses basic research and translational research components. Someone who studies<unk> , either clinically or solely through research, is known as a<unk> st.
Cardiac electrophysiology
Vectorcardiography
Coronary CT calcium scan
Clinical cardiac electrophysiology
Electrical cardiometry
Cardiac magnetic resonance imaging
Cardiac magnetic resonance imaging perfusion
Magnetocardiography