“…This is very important finding, since a reversible defect on the myocardial perfusion imaging (MPI) by single photon-emission computed tomography (SPECT) is the only available diagnostic tool that can independently predict the risk of nonfatal MI. Therefore, stress perfusion studies should be reported documenting defect severity (mild, moderate, severe), size (small, moderate, large) and reversibility to provide essential risk stratification (2,4,5,6). The value of MPI comes from the ability to identify and quantify the degree of jeopardized myocardium during stress tests.…”