Scanning is a method used in conjunction with coronary angiography to determine the status of the blood supply to the heart and the activity of the heart muscle. Patients need to prepare well before and after the scan to get the most accurate test results.

Myocardial perfusion scintigraphy is a subclinical technique to help evaluate cardiac perfusion function, aiming to find the cause of some cardiovascular diseases that appear with only chest pain. In addition to finding the cause to diagnose the disease, cardiac scintigraphy is also used as a means to evaluate patients after a myocardial infarction, from which there are further indications for the patient.