Table 3.

Diffusion Weighed Imaging

DTI		SRC athletes median (IQR) n = 19	Controls median (IQR) n = 21	P
FA	Superior cerebellar peduncle	0.427 (0.412–0.442)	0.424 (0.397–0.448)	0.968
	Middle cerebellar peduncle	0.471 (0.448–0.488)	0.482 (0.460–0.497)	0.180
	Inferior cerebellar peduncle	0.430 (0.412–0.456)	0.433 (0.393–0.462)	0.888
MD	Superior cerebellar peduncle	0.742 (0.706–0.809)	0.740 (0.725–0.774)	0.695
	Middle cerebellar peduncle	0.745 (0.727–0.765)	0.743 (0.723–0.777)	0.715
	Inferior cerebellar peduncle	0.739 (0.686–0.829)	0.715 (0.674–0.774)	0.448

DKI		SRC athletes median (IQR) n = 18	Controls median (IQR) n = 20	P
MK	Superior cerebellar peduncle	0.923 (0.821–0.960)	0.972 (0.927–1.013)	0.010
	Middle cerebellar peduncle	0.942 (0.834–0.1.016)	0.980 (0.948–1.022)	0.090
	Inferior cerebellar peduncle	0.898 (0.860–0.953)	0.962 (0.934–0.993)	0.010
AK	Superior cerebellar peduncle	0.846 (0.822–0.882)	0.851 (0.829–0.891)	0.726
	Middle cerebellar peduncle	0.933 (0.906–0.955)	0.934 (0.920–0.955)	0.792
	Inferior cerebellar peduncle	0.952 (0.912–0.975)	0.945 (0.934–0.984)	0.748
RK	Superior cerebellar peduncle	0.878 (0.651–1.014)	1.032 (0.912–1.083)	0.006
	Middle cerebellar peduncle	0.873 (0.693–1.070)	0.999 (0.910–1.082)	0.070
	Inferior cerebellar peduncle	0.829 (0.686–0.945)	0.950 (0.851–1.023)	0.021

7T magnetic resonance imaging diffusion weighed imaging. Diffusion tensor imaging (DTI) metrics for fractional anisotropy (FA) and mean diffusion (MD), and diffusion kurtosis imaging (DKI) metrics for mean kurtosis (MK), axial kurtosis (AK), and radial kurtosis (RK), in the superior, middle, and inferior cerebellar peduncles. The significance threshold was set to 0.017 after Bonferroni correction; significant values are bolded. SRC, sports-related concussion.