A method for the assessment of cardiac anatomy and physiology as well as of its Coronary arteries. It is based on injecting a radioactive substance and examining its distribution in the various segments of the heart walls.
In the course of this test, radioactive substances are used (mainly thallium 201 or technetium 99). These substances are characterized by their ability to reach such areas in the myocardium that are supplied with blood and include viable muscle cells.
A computerized gamma camera rotates around the patient and registers heart images from different perspectives.
Scanning of the heart (also called Scintigraphy) can be performed at rest and in stress situations.