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Figure 3 Comparison of left ventricular (LV) end-diastolic volume and ejection fraction at the time of positron emission tomography (PET) and at final evaluation according to tertiles of dipyridamole myocardial blood flow. Vertical bars indicate mean ± SD for each group. *p < 0.05 versus same group at the time of PET scan; p < 0.05 versus patients in the highest tertile; p < 0.05 versus patients in other tertiles.