IDH1 and central nervous system cancer: The nADC (1.42 ± 0.28) and omADC (0.0011 ± 0.0002 mm2/s) values in IDH-wt gliomas were lower than those (1.83 ± 0.34 and 0.0014 ± 0.0003 mm2/s) in IDH-mutated gliomas (both P < 0.0001) (Table 2).