title: [Diagnostic possibilities of radionuclide methods of studying patients with stable and unstable angina pectoris].
abstract: Myocardial radiocardiography and scintigraphy with 99mTc-pyrophosphate was performed in 58 patients with stable angina and 60 patients with unstable angina. In patients with stable angina, positive scintigrams were mostly recorded after anginal attacks. Their central hemodynamic parameters deteriorated progressively as angina increased in severity. Patients with unstable angina typically showed myocardial accumulation of the label that was unrelated to anginal attacks and recordable by direct-projection scintigraphy. The assessment of myocardial radiocardiographic and scintigraphic data allows one to differentiate between stable and unstable angina.
mesh_terms: D000328:Adult; D000787:Angina Pectoris / Q000000981:diagnostic imaging* / Q000503:physiopathology; D000789:Angina, Unstable / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002302:Cardiac Output; D003937:Diagnosis, Differential; D011756:Diphosphates; D005080:Exercise Test; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013318:Stroke Volume; D013667:Technetium; D016698:Technetium Tc 99m Pyrophosphate; D014055:Tomography, Emission-Computed; D014655:Vascular Resistance
chemical_list: D011756:Diphosphates; D016698:Technetium Tc 99m Pyrophosphate; D013667:Technetium
vernacular_title: Diagnosticheskie vozmozhnosti radionuklidnykh metodov issledovaniia u bol'nykh so stabil'noĭ i nestabil'noĭ stenokardieĭ.