The best part of this article is not that SPECT an reliably pick up infarcts, but the acceptance of the fact that DE-MRI is the gold-standard for infarct evaluation. Despite this fact having been conclusively proven in multiple publications in the last 3-4 years, at least in our part of the world, it is not easy getting this message across to cardiologists and physicians.
It stands to reason that if contrast-enhanced MRI is a gold standard for infarct imaging, it is a gold standard for viability imaging as well.
Link: Automatic Detection and Size Quantification of Infarcts by Myocardial Perfusion SPECT: Clinical Validation by Delayed-Enhancement MRI -- Slomka et al. 46 (5): 728 -- The Journal of Nuclear Medicine.