نبذة مختصرة : Evaluation of the long-term prognostic value of myocardial perfusion imaging (MPI) in octogenarians. Six hundred and twenty-nine octogenarians [51% previous myocardial infarction (MI) or revascularization] who underwent single-isotope MPI (78% 201Tl, 22% 99mTc-tetrofosmin) with exercise (38% Bruce, 2% leg ergometry) or pharmacologic (58% adenosine, 2% dobutamine) stress were studied. All patients had LVEF determined by echocardiography within 1 month from MPI. Myocardial perfusion scoring was performed on a 17-segment LV-model with a 5-point grading system and three summed stress score (SSS)-based risk categories were formed [high-(SSS > 12), low-(SSS
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