Fig. 6

Relationship between the cluster 3 of AD values and the HFMSE in the SMA group. The results of correlation analysis between HFMSE scores (x-axis) and the cluster 3 of AD values (y-axis) (r = 0.45, p = 0.02). AD, axial diffusivity; HFMSE, Hammersmith Functional Motor Scale-Expanded; SMA, spinal muscular atrophy