Stress MPI provides prognostic information after CABG

In 1544 patients who had previously undergone coronary artery bypass grafting (CABG), stress myocardial perfusion imaging (MPI) was predictive of the subsequent annual cardiac death rate. Cardiac death rates were significantly higher for patients who had a higher summed stress score (SSS) on MPI; they were also higher in patients evaluated >5 years, as opposed to ≤5 years, after CABG.