one hundred nine patients with persistently positive technetium-99m pyrophosphate ( tc-99m-ppi ) myocardial scintigrams 6 months after acute myocardial infarction ( mi ) ( group a ) and 185 patients without such persistently positive scintigrams ( group b ) were compared with regard to enzymatically determined infarct size , early and late measurements of left ventricular ( lv ) function determined by radionuclide ventriculography , and preceding clinical course during the 6 months after mi .
C0021308
infarct
C0027051
mi