Fig. 4

Absolute ischemic burden quantification. On the top row (a) absolute ischemic burden (in ml) is displayed without prior intake caffeine in the same patient than in Figs. 2 and 3. Bottom row (b) shows the corresponding perfusion slices after consumption of 200 mg caffeine one hour prior to the repeat scan. Similar to figs. 2 and 3, myocardial ischemic burden is reduced but still detectable in perfusion slices despite the influence of caffeine