FIGURE 1. Bilateral changes in rCBF and V₀ in cortical territories of MCA before and after ACZ administration. Increase in rCBF and V₀ for all patients was significant when before-ACZ administration was compared with after-ACZ administration, although 4 of 16 patients showed reduction in rCBF in ipsilateral hemisphere. V₀ in all 4 patients increased on same side of hemisphere. Changes in patients of group A (•) are represented by dashed lines, and solid lines show changes in group B (x).