title: Quantitative methods in the evaluation of thallium-201 myocardial perfusion images.
abstract: Methods have been developed for on-line computer enhancement of a scintillation camera's myocardial images and for a graphical presentation showing relative thallium-201 activity in the myocardium. Enhancement uses fast Fourier transform techniques. The methods have been applied to multiple images obtained after stress and 4--5 hr rest. Patients with myocardial infarction and/or transient ischemia were evaluated and typical examples are presented.
mesh_terms: D003201:Computers; D003327:Coronary Disease / Q000000981:diagnostic imaging; D005583:Fourier Analysis; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D009203:Myocardial Infarction / Q000000981:diagnostic imaging; D010477:Perfusion; D005082:Physical Exertion; D011856:Radiographic Image Enhancement / Q000379:methods; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013793:Thallium
chemical_list: D011868:Radioisotopes; D013793:Thallium