ECG trigger methods synchronize the heartbeat in order to minimize motion artifacts, whereat the r-wave is used as the trigger. ECG gating techniques are useful whenever data acquisition is too slow to occur during a short fraction of the cardiac cycle.

See also Triggering and Trigger Delay.

Cardiology is a medicine sector that covers the clinical study, treatment and imaging of the heart actions and diseases.

See also Ischemia, Calcium Score, Cardiac Phase, Diastole, Adventitia, Defibrillator, ECG Trigger, Arrhythmia Rejection.