Methods for the study of regional myocardial perfusion in patients with atherosclerotic coronary artery disease: findings at rest after nitroglycerin and during angina pectoris.
In patients with ischemic heart disease the evaluation of regional myocardial perfusion by 133Xenon intracoronary injection using a gamma camera computer system allows the detection of regional alterations of myocardial perfusion. While at rest a minority of the patients studied shows large alterations, during pacing induced angina a severe reduction of regional myocardial perfusion can be evidenced both in initial distribution scintigrams, when the injection is performed during angina, and on the washout curves when angina is induced immediately after the injection, during the course of the washout.
D000787:Angina Pectoris / Q000503:physiopathology*; D003326:Coronary Circulation / Q000187:drug effects; D005996:Nitroglycerin / Q000008:administration & dosage; D011865:Radioisotope Dilution Technique; D011877:Radionuclide Imaging / Q000379:methods*; D014980:Xenon Radioisotopes
D014980:Xenon Radioisotopes; D005996:Nitroglycerin