title: [Proceedings: Studies on myocardial perfusion by means of marked particles, injected selectively into the coronary system: an aid in preoperative evaluation of patients with coronary sclerosis].
abstract: Myocardial color scintigraphy using macroaggregates labeled with 99mTc and 131I were performed in patients with coronary heart disease. The particles were injected selectively into the coronary arteries. The scintigram was obtained using a color coded display system. The channel with the maximum counts was assigned the color red and each 10% change resulted in a different color. A count rate below 40% of the maximum was considered inadequate. 80 patients undergoing coronary surgery were evaluated postoperatively. Postoperative ventriculography documented improved contractions in 34 of 40 ventricular segments (85%) in which preoperatively an adequate perfusion was observed, whereas in only 13 out of 42 segments with preoperatively inadequate perfusion was an improvement in ventricular contractility observed.
mesh_terms: D000328:Adult; D000368:Aged; D000790:Angiocardiography / Q000379:methods*; D003327:Coronary Disease / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D008297:Male; D008875:Middle Aged; D010477:Perfusion; D013667:Technetium
chemical_list: D007457:Iodine Radioisotopes; D013667:Technetium
vernacular_title: Studien der myokardialen Perfusion mittels markierter, selektiv ins Koronarsystem injizierter Partikel: eine Hilfe in der präoperativen Beurteilung von Patienten mit Koronarsklerose