Scanning the heart.
D004562:Electrocardiography / Q000379:methods; D006331:Heart Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D011868:Radioisotopes; D011877:Radionuclide Imaging / Q000379:methods*; D013667:Technetium; D013793:Thallium
D011868:Radioisotopes; D013667:Technetium; D013793:Thallium