TABLE I.

Effective Diffusivity and FA of Water as Measured by DTI in 1% Hydrogel Samples Embedded with Glass Fibers

Diffusivity in the entire sample										Diffusivity in an ROI
Glass fiber (%)	λz (cm2/s)		λx (cm2/s)		λy (cm2/s)		FA		λz/λ⊥a	λz (cm2/s)		λx (cm2/s)		λy (cm2/s)		FA		λz/λ⊥a
	Mean (×10−7)	SD (×10−9)	Mean (×10−7)	SD (×10−9)	Mean (×10−7)	SD (×10−9)	Mean	SD (×10−3)		Mean (×10−7)	SD (×10−9)	Mean (×10−7)	SD (×10−9)	Mean (×10−7)	SD (×10−9)	Mean	SD (×10−3)
0	2.13	2.64	1.98	3.23	1.88	0.35	0.064	6.45	1.10	2.13	0.76	1.97	0.98	1.88	0.84	0.065	1.69	1.10
5	2.17	0.75	1.93	0.45	1.80	0.69	0.098	2.69	1.16	2.19	0.84	1.77	1.45	1.64	1.31	0.16	4.94	1.28
10	2.16	0.75	1.85	0.83	1.73	1.01	0.12	2.34	1.20	2.16	1.15	1.65	1.63	1.52	1.53	0.2	6.50	1.36
20	2.29	2.62	1.89	1.87	1.75	2.04	0.15	1.96	1.26	2.31	1.14	1.71	1.07	1.58	1.21	0.21	3.82	1.40

Measures were over the entire sample and a local ROI (see Fig. 3).

^aλ_⊥ was calculated as the average of λ_x and λ_y.