Table VII.

Between group analyses by TFAS

	HSP patients	X‐SBMA patients	No. voxels	t‐test
X‐SBMA versus HSP
CC	0.33 ± 0.10	0.38 ± 0.13	16,825	<0.001
CST	0.42 ± 0.14	0.43 ± 0.14	4,413	0.095
	HSP patients	PLS patients	No. voxels	t‐test
X‐SBMA versus PLS
CC	0.32 ± 0.11	0.39 ± 0.14	12,355	<0.001
CST	0.39 ± 0.13	0.43 ± 0.15	4,388	<0.001
	PLS patients	X‐SBMA patients	No. voxels	t‐test
HSP versus PLS
CC	0.36 ± 0.10	0.34 ± 0.11	9,951	<0.001
CST	0.43 ± 0.14	0.40 ± 0.12	4,277	<0.001

Tractwise fractional anisotropy (TFAS) results for between group analyses of the three investigated MNDs. Data are presented as mean values ± SD. A t‐test was performed for the comparison between mean FA values of X‐SBMA and HSP, X‐SBMA and PLS and HSP and PLS, respectively.