Results obtained from perfusion in the study of gender influence in a glioblastoma rat model. (A) Variation in the relative CBV values, as a percentage, in the tumour of pathological rats related to the equivalent ones in sham animals. (B) Relative MTT values in the same region and condition. Unpaired t test analysis was performed on the data by comparing both genders in the same area. Statistically significant differences are indicated in the columns, where *P < 0.05 and ***P < 0.001.