title: [Detection of viable myocardium by means of stress test with thallium 201: usefulness of delayed imaging].
abstract: Delayed imaging may help detect viable myocardium after stress Thallium scintigraphy. In 22 patients who had sustained myocardial infarction we performed a stress Thallium test followed by imaging after 24 hr. Delayed reperfusion was observed in 57% of segments showing no reperfusion at 4 hr, which is similar to findings reported in the literature. We proposed that delayed imaging should be performed in all patients showing perfusion defects at 4 hr. Even though a better image may be obtained using reinjection of Thallium, delayed imaging may be the technique of choice to reduce the cost of the test.
authors.affiliation: Unidad de Medicina Nuclear, Hospital de Carabineros, Santiago de Chile.
authors.forename: J
authors.initials: J
authors.lastname: Canessa
authors.forename: A
authors.initials: A
authors.lastname: Gatica
authors.forename: M
authors.initials: M
authors.lastname: Hassi
authors.forename: G
authors.initials: G
authors.lastname: Lobo
authors.forename: E
authors.initials: E
authors.lastname: Escobar
mesh_terms: D000368:Aged; D005080:Exercise Test; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000473:pathology; D015425:Myocardial Reperfusion; D009206:Myocardium / Q000473:pathology; D011877:Radionuclide Imaging; D013794:Thallium Radioisotopes
chemical_list: D013794:Thallium Radioisotopes
vernacular_title: Detección de miocardio viable mediante prueba de esfuerzo con Talio 201: utilidad de la imagen tardía.