FIGURE 2. Representative images of patients with occlusion of right ICA in group A: patient with normal OEF values in bilateral hemispheres (A) and patient with significantly greater OEF in ipsilateral hemisphere (B). Interhemispheric difference in rCBF was intensified and absolute rCBF values decreased on ipsilateral side, although V₀ was slightly increased in same region. Corresponding OEF images show asymmetric increase in ipsilateral hemisphere in both patients. Same color scale is used for same parametric images.