Comprehensive and quantitative study of rank-4 order diffusion tensor imaging and positive definite rank-4 order diffusion tensor imaging: A higher order tensor imaging study

2014 ◽  
Vol 24 (1) ◽  
pp. 83-93
Author(s):  
Shan Jiang ◽  
Pengfei Zhang
Keyword(s):  
Diffusion Tensor Imaging ◽  
Quantitative Study ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
Positive Definite ◽  
Higher Order ◽  
Order Tensor

The impact of depression on Veterans with PTSD and traumatic brain injury: A diffusion tensor imaging study

2015 ◽  
Vol 105 ◽  
pp. 20-28 ◽  
Author(s):  
Linda Isaac ◽  
Keith L. Main ◽  
Salil Soman ◽  
Ian H. Gotlib ◽  
Ansgar J. Furst ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Diffusion Tensor Imaging ◽  
Brain Injury ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
The Impact ◽  
Diffusion Tensor Imaging Study

scholarly journals White Matter Integrity Predicts Delay Discounting Behavior in 9- to 23-Year-Olds: A Diffusion Tensor Imaging Study

2009 ◽  
Vol 21 (7) ◽  
pp. 1406-1421 ◽  
Author(s):  
Elizabeth A. Olson ◽  
Paul F. Collins ◽  
Catalina J. Hooper ◽  
Ryan Muetzel ◽  
Kelvin O. Lim ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Delay Discounting ◽  
Diffusion Tensor ◽  
Mean Diffusivity ◽  
Imaging Study ◽  
Temporal Lobes ◽  
Brain White Matter ◽  
Independent Effects ◽  
Age Range

Healthy participants (n = 79), ages 9–23, completed a delay discounting task assessing the extent to which the value of a monetary reward declines as the delay to its receipt increases. Diffusion tensor imaging (DTI) was used to evaluate how individual differences in delay discounting relate to variation in fractional anisotropy (FA) and mean diffusivity (MD) within whole-brain white matter using voxel-based regressions. Given that rapid prefrontal lobe development is occurring during this age range and that functional imaging studies have implicated the prefrontal cortex in discounting behavior, we hypothesized that differences in FA and MD would be associated with alterations in the discounting rate. The analyses revealed a number of clusters where less impulsive performance on the delay discounting task was associated with higher FA and lower MD. The clusters were located primarily in bilateral frontal and temporal lobes and were localized within white matter tracts, including portions of the inferior and superior longitudinal fasciculi, anterior thalamic radiation, uncinate fasciculus, inferior fronto-occipital fasciculus, corticospinal tract, and splenium of the corpus callosum. FA increased and MD decreased with age in the majority of these regions. Some, but not all, of the discounting/DTI associations remained significant after controlling for age. Findings are discussed in terms of both developmental and age-independent effects of white matter organization on discounting behavior.

Regional Cerebral Disease Progression in Friedreich's Ataxia: A Longitudinal Diffusion Tensor Imaging Study

2015 ◽  
Vol 26 (2) ◽  
pp. 197-200 ◽  
Author(s):  
Mario Mascalchi ◽  
Nicola Toschi ◽  
Marco Giannelli ◽  
Andrea Ginestroni ◽  
Riccardo Della Nave ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Disease Progression ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
Friedreich’S Ataxia ◽  
Friedreich's Ataxia ◽  
Longitudinal Diffusion ◽  
Cerebral Disease ◽  
Diffusion Tensor Imaging Study
Sign in / Sign up

Export Citation Format

Share Document