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Figure 2 Kaplan-Meier cardiac event-free survival curves for patients randomized to ¹³N-ammonia/¹⁸FDG PET or stress/rest ^99mTc-sestamibi SPECT-based management (PTCA, CABG or drug therapy). All patients were potential candidates for revascularization, and in all patients, assessment of jeopardized myocardium was indicated. CABG = coronary artery bypass graft surgery; ¹⁸FDG = ¹⁸fluorodeoxyglucose; PET = positron emission tomography; PTCA = percutaneous transluminal angioplasty; SPECT = single-photon emission computed tomography.