IDH2 and glioblastoma: Xing et al. found that the rCBVmax of IDH-mutated glioblastomas was significantly lower than that of IDH-wildtype glioblastomas (IDH-mutated = 5.08 ± 1.48; IDH-wildtype = 8.93 ± 2.99; p < 0.001) [49].