[Tomoscintigraphy of the myocardium labelled with thallium-201. Value in the quantification and prognosis of myocardial infarction].
Myocardial thallium 201 tomography was performed in 112 patients admitted to hospital in the acute stage of a first myocardial infarction. Our quantification method for the myocardial lacuna, validated by animal studies, is described. The necrotic mass evaluated is compared with enzymatic (CPK) (r = 0.89) and angiographic (r = 0.78) quantitative assessments. Thallium 201 tomographic quantification has an unquestionable prognostic value. Thus, among patients whose infarcted mass represented more than 25% of the total myocardial mass, 71% died or developed severe heart failure. Conversely, 93% of patients with a small infarct (less than 20% of total myocardial mass) were asymptomatic on a 24-month follow-up. Myocardial thallium 201 tomography provides a reasonable quantification of the infarct. Its prognostic value seems to be satisfactory.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000201:enzymology; D011379:Prognosis; D011859:Radiography; D013794:Thallium Radioisotopes; D013997:Time Factors; D014055:Tomography, Emission-Computed
D013794:Thallium Radioisotopes
La tomoscintigraphie du myocarde marqué au thallium 201. Intérêt dans la quantification et le pronostic de l'infarctus du myocarde.