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Figure 3 Kaplan-Meier cardiac event-free survival curves for patients intended to undergo revascularization on the basis of 13N-ammonia/18FDG PET or stress/rest 99mTc-sestamibi SPECT imaging. CABG = coronary artery bypass graft surgery; 18FDG = 18fluorodeoxyglucose; PET = positron emission tomography; PTCA = percutaneous transluminal angioplasty; SPECT = single-photon emission computed tomography.