FIG 2. Bar graph shows changes in ADC values over time in the center of the lesion of the ipsilateral caudoputamen (white bars) and the nonischemic homologous region of the contralateral caudoputamen (striped bars). In all groups, ADC values in the ischemic lesion center decreased significantly (* indicates P < .001) during 30 minutes of ischemia, compared with the contralateral hemisphere. In group B, the reduced ADC values during ischemia recovered to normal 90 minutes (1.5 h) after reperfusion. In group C, the previously renormalized ADC values declined secondarily at 12 hours (12 h) after reperfusion. Occ indicates occlusion.