I'm trying to make sense of a data summary I've seen for DTI measures in WM of normal kids (sample size ~50):
DTI metrics in WM (every WM region sampled) show a positive linear correlation between Radial and Axial diffusivity (high AD datapoints have high RD).
This result seems odd...I'd expect a negative correlation.
Any thoughts from anyone?
Cheers,
Jenifer
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