Extent of perfusion abnormality and prognosis. Long term follow-up data showing, risk-adjusted hazard of cardiac death increases with increasing degree of perfusion abnormality (both ischemia and scar) on PET myocardial perfusion imaging. HR = Hazard Ratio.
From Dorbala S, Di Carli MF, Beanlands RS, et al. Prognostic value of stress myocardial perfusion positron emission tomography: results from a multicenter observational registry. J Am Coll Cardiol. 2013;61(2):176-184; with permission.