Table 3:

Correlations among the baseline FM-UE scale score, corticospinal tract diffusion metrics, and 3-month FM-UE scale score

	Lesioned Hemisphere CST		Lesioned/Contralateral CST Ratio
	ρ	P Value	ρ	P Value
3-mo FM-UE scale
MD	0.65	.007	0.69	.002
Axial diffusivity	0.55	.022	0.73	.001
Radial diffusivity	0.53	.030	0.60	.011
FA	0.08	.761	0.40	.111
MK	−0.72	.001	−0.85	<.001
Axial kurtosis	−0.75	.001	−0.78	<.001
Radial kurtosis	−0.33	196	−0.47	.056
AWF	−0.45	.072	−0.63	.007
Intra-axonal diffusivity	0.51	.035	0.48	.054
Axial extra-axonal diffusivity	0.45	.070	0.61	.009
Radial extra-axonal diffusivity	0.37	.142	0.45	.072
Change of FM-UE scale (%)
MD	0.64	.006	0.47	.055
Axial diffusivity	0.49	.046	0.66	.004
Radial diffusivity	0.69	.002	0.42	.098
FA	−0.01	.974	0.47	.060
MK	−0.61	.010	−0.72	.001
Axial kurtosis	−0.65	.005	−0.65	.004
Radial kurtosis	−0.28	.269	−0.48	.049
AWF	−0.54	.026	−0.59	.013
Intra-axonal diffusivity	0.42	.095	0.43	.083
Axial extra-axonal diffusivity	0.42	.090	0.56	.019
Radial extra-axonal diffusivity	0.53	.028	0.24	.349

Note:—AWF indicates axial water fraction.