TABLE 3.

White matter indexes in patients with PSA compared with HC.

	HC		PSA		Test
	Mean	SD	Mean	SD	t	p
Indexes in skeleton by TBSS
FA values(×10–1)	7.039	0.156	6.400	0.577	5.826	<0.001
MD values(×10–4)	3.642	0.154	4.412	0.938	−4.387	<0.001
AD values(×10–4)	7.108	0.211	8.066	1.059	−4.816	<0.001
RD values(×10–4)	1.899	0.156	2.664	0.878	−4.649	<0.001
Indexes in fiber by fiber tracking
FN	5.241	1.434	6.305	3.396	−1.592	0.116
FA values(×10–1)	5.330	0.220	5.070	0.574	2.320	0.023
MD values(×10–4)	4.285	0.172	4.703	0.846	−2.626	0.011
AD values(×10–4)	6.837	0.259	7.284	0.837	−2.784	0.007
RD values(×10–4)	2.974	0.171	3.386	0.861	−2.546	0.013

TBSS, Tract-Based Spatial Statistics; FA, fractional anisotropy; MD, mean diffusivity; AD, axial diffusivity; RD, radial diffusivity.