Regarding diffusion tensor imaging metrics, Serveret al. investigated in seventy-eight patients the diagnostic accuracy of axial diffusivity (AD), radial diffusivity (RD), ADC and FA forglioma grading. The results showed that ADC, RD and AD were useful for differentiation between low and high-grade gliomas with adiagnostic accuracy of more than 90%. Among them, ADC providedthe highest discriminatory power