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FIGURE 1. Examples of PET images on 2 different levels show parallel decrease of FMZ-BP, CBF, CMRO2, and an increase of OEF in patient with right ICA occlusion who showed internal borderzone infarction (red arrow) with cortical extension (green arrow) on corresponding MR images. In addition to markedly reduced FMZ-BP in region with small cortical infarcts, a decrease of FMZ-BP was found in normal-appearing cerebral cortex beyond borderzone infarcts. Mean hemispheric values of ipsilateral/contralateral hemisphere: FMZ-BP ratio, 1.00/1.16; CBF, 20.4/26.1 mL/100 g/min; CMRO2, 2.37/2.87 mL/100 g/min; OEF, 61.9%/58.3%.
