Abstract
The relationship of gray zone and infarct core in the Iceland MI study
Highlights
Gray zone or infarct heterogeneity, defined as the admixture of necrotic and viable myocardium at the periphery of myocardial infarction (MI), has been noted to be a modulator of cardiac outcomes
We report the data from 215 individuals who were found to have myocardial infarction by late gadolinium enhancement on CMR
When gray zone was normalized to total scar size, it had a negative correlation with infarct core, rho of -0.53 (-0.62–0.42), P < 0.0001
Summary
Gray zone or infarct heterogeneity, defined as the admixture of necrotic and viable myocardium at the periphery of myocardial infarction (MI), has been noted to be a modulator of cardiac outcomes. Most studies have not reported a direct correlation between infarct core and the zone of heterogeneity. No large population based studies have examined the burden of undiagnosed infarct and infarct heterogeneity
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