Table 2. Inter-observer variability in measurements of 30 randomly selected patients.

Region	Metrics	Intra-class correlation coefficient, 95% CI for Inter-observer
Solid region of the tumor	MK	0.903, 0.796–0.954
	Ka	0.903, 0.796–0.954
	Kr	0.889, 0.768–0.947
	MD	0.871, 0.730–0.939
	FA	0.673, 0.314–0.845
	ADC	0.906, 0.803–0.955
NAWM	MK	0.923, 0.838–0.963
	Ka	0.980, 0.958–0.991
	Kr	0.920, 0.832–0.962
	MD	0.962, 0.920–0.982
	FA	0.902, 0.795–0.954
	ADC	0.972, 0.941–0.987

CI: confidence interval; MK: mean kurtosis; Ka: axial kurtosis; Kr: radial kurtosis; MD: mean diffusivity; FA: fractional anisotropy; ADC: apparent diffusion coefficient; NAWM: normal-appearing white matter.