Comparison of Perfusion CT Values of Surgical Side in the Region of Middle Cerebral Artery Pre- and Post-operation [mean±SD; median (P₂₅–P₇₅)].

CBF = cerebral blood flow, CBV = cerebral blood volume, MTT = mean transit time TTP = time to peak, rCBF = relative cerebral blood flow, rCBV = relative cerebral blood volume, rMTT = relative mean transit time, rTTP = relative time to peak. P<0.05 was considered statistically significant. Normal distribution data were expressed as mean±SD while skew distribution of measurement data were expressed as median (P25–P75).