Table 1.

Mean, standard deviations, minimum and maximum of DTI metrics in the solid tumoral part and peri-tumoral region of low-grade and high-grade gliomas.

	Mean ± SD (min/max)
Metric	Low-grade gliomas (n = 16)	High-grade gliomas (N = 19)	p value
Tumor part
MD	1.78 ± 0.33 (1.28–2.54)	1.16 ± 0.22 (0.05–1.47)	0.001
FA	0.16 ± 0.12 (0.05–0.49)	0.12 ± 0.10 (0.61–0.49)	0.272
CL	0.07 ± 0.07 (0.01–0.30)	0.04 ± 0.04 (0.01–0.15)	0.142
CS	0.82 ± 0.96 (0.62–0.95)	0.87 ± 0.08 (0.59–0.98)	0.133
CP	0.25 ± 0.16 (0.06–0.67)	0.17 ± 0.12 (0.03–0.55)	0.188
Peri-tumoral region
MD	1.11 ± 0.36 (0.62–2.06)	1.39 ± 0.40 (0.74–2.06)	0.042
FA	0.35 ± 0.17 (0.10–0.71)	0.21 ± 0.10 (0.03–0.45)	0.006
CL	0.13 ± 0.11 (0.02–0.47)	0.07 ± 0.25 (0.01–0.19)	0.056
CS	0.69 ± 0.12 (0.47–0.92)	0.78 ± 0.11 (0.42–0.93)	0.037
CP	0.43 ± 0.22 (0.12–0.96)	0.28 ± 0.16 (0.08–0.74)	0.030

MD: mean diffusivity; FA: fractional anisotropy; CL: linear coefficient; CS: spherical coefficient; CP: planar coefficient.