The T/N ratio of 18F-FDG PET was also positively correlated with the MIB-1 LI in all gliomas (rs = 0.400, p = 0.013; Fig. 3b), whereas the SUVmax of 18F-FDG PET was not correlated (rs = 0.242, p = 0.144). The gene discussed is MIB1; the disease is central nervous system cancer.