scholarly journals Altered white matter integrity in patients with monocular blindness: A diffusion tensor imaging and tract‐based spatial statistics study

2020 ◽  
Vol 10 (8) ◽  
Author(s):  
Yu‐Xin Liu ◽  
Biao Li ◽  
Kang‐Rui Wu ◽  
Li‐Ying Tang ◽  
Qi Lin ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Spatial Statistics ◽  
Diffusion Tensor ◽  
White Matter Integrity ◽  
Tract Based Spatial Statistics

scholarly journals A prospective study of physician-observed concussion during a varsity university hockey season: white matter integrity in ice hockey players. Part 3 of 4

2012 ◽  
Vol 33 (6) ◽  
pp. E3 ◽  
Author(s):  
Inga K. Koerte ◽  
David Kaufmann ◽  
Elisabeth Hartl ◽  
Sylvain Bouix ◽  
Ofer Pasternak ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Spatial Statistics ◽  
Diffusion Tensor ◽  
Ice Hockey ◽  
White Matter Integrity ◽  
Posterior Limb ◽  
Hockey Players ◽  
Tract Based Spatial Statistics ◽  
The Right

Object The aim of this study was to investigate the effect of repetitive head impacts on white matter integrity that were sustained during 1 Canadian Interuniversity Sports (CIS) ice hockey season, using advanced diffusion tensor imaging (DTI). Methods Twenty-five male ice hockey players between 20 and 26 years of age (mean age 22.24 ± 1.59 years) participated in this study. Participants underwent pre- and postseason 3-T MRI, including DTI. Group analyses were performed using paired-group tract-based spatial statistics to test for differences between preseason and postseason changes. Results Tract-based spatial statistics revealed an increase in trace, radial diffusivity (RD), and axial diffusivity (AD) over the course of 1 season. Compared with preseason data, postseason images showed higher trace, AD, and RD values in the right precentral region, the right corona radiata, and the anterior and posterior limb of the internal capsule. These regions involve parts of the corticospinal tract, the corpus callosum, and the superior longitudinal fasciculus. No significant differences were observed between preseason and postseason for fractional anisotropy. Conclusions Diffusion tensor imaging revealed changes in white matter diffusivity in male ice hockey players over the course of 1 season. The origin of these findings needs to be elucidated.

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