Table 4.

Correlation between age, disease duration, and DTI metrics in the MCP and bilateral putamen in MSA patients

MCP				Putamen
Age		Disease duration		Age		Disease duration
Metric	P-value	Metric	P-value	Metric	P-value	Metric	P-value
FA	P=0.59	FA	P=0.83	FA	P=0.16	FA	P=0.77
AD	P=0.32	AD	P=0.93	AD	P=0.14	AD	P=0.39
RD	P=0.51	RD	P=0.96	RD	P=0.18	RD	P=0.37
MD	P=0.44	MD	P=0.95	MD	P=0.07	MD	P=0.38

Abbreviations: AD, axial diffusivity; DTI, diffusion tensor imaging; FA, fractional anisotropy; MCP, middle cerebellar peduncle; MD, mean diffusivity; MSA, multiple system atrophy; RD, radial diffusivity.