White matter fiber tractography
A Method for Clustering White Matter Fiber Tracts
... of white matter fiber tracts in the ...long fiber tracts that connect anatomically distant brain ...of fiber tractography, several methods have been proposed to delineate ...
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White Matter Abnormalities Are Related to Microstructural Changes in Preterm Neonates at Term Equivalent Age: A Diffusion Tensor Imaging and Probabilistic Tractography Study
... of white matter ...in white matter but not in specific fiber ...and tractography for the assessment of white matter injury in neonates, 16,17 and most ...
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Diffusion Tensor MR Imaging and Fiber Tractography: Theoretic Underpinnings
... in white matter tracts, depending on their orientation rel- ative to the direction of the diffusion gra- dient, which could also be affected by changes in the orientation of the patient’s ...
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Diffusion Tensor MR Imaging and Fiber Tractography: Technical Considerations
... of fiber bundles are larger and more ...anisotropic white matter structures, such as the corpus callosum, can be espe- cially vulnerable to insufficient SNR because the lack of re- striction of water ...
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White Matter Microstructural Abnormality in Children with Hydrocephalus Detected by Probabilistic Diffusion Tractography
... The fiber tracking was successful in all participants in the control group for all the WM ...However, fiber tracking was not successful in the splenium of the CC in 9/12 children with ...
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What can DTI add in acute ischemic stroke patients?
... of white matter tract affec- tion as detected by 3D fiber tractography and the NIHSS score on admission and that on follow-up after 3 ...disrupted white matter tracts than those ...
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Side Matters: Diffusion Tensor Imaging Tractography in Left and Right Temporal Lobe Epilepsy
... decreased fiber asymmetry due to bilateral white matter change as has been reported in previously men- tioned ...in fiber integrity may charac- terize many patients with unilateral left TLE ...
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Tractography at 3T MRI of Corpus Callosum Tracts Crossing White Matter Hyperintensities
... It is unclear why CC-WMH tracts were not associated with increased MD and RD and why cingulum WMH tracts were not associated with decreased FA or increased MD. This lack of infor- mation may relate to the small sample ...
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Local and Global Fiber Tractography in Patients with Epilepsy
... those fiber orientations with smaller diffusion ...the white matter. Thus, the entire fiber system is forced into a configu- ration where crossings are needed to explain the whole diffu- sion ...
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Differentiation of Speech Delay and Global Developmental Delay in Children Using DTI Tractography Based Connectome
... refine white matter abnormalities in chil- dren with GD and ...axonal fiber counts between nodes), which may provide a powerful way of examining the structural connections in specific brain networks ...
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Method for Combining Information from White Matter Fiber Tracking and Gray Matter Parcellation
... of tractography with cortical parcellations for determining the impact of the tumor on white matter ...cospinal fiber tracts, and we were able to trace the fibers that were most affected by ...
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Semilobar Holoprosencephaly Seen with Diffusion Tensor Imaging and Fiber Tracking
... major white matter tracts in the hypothal- ...with tractography, whereas the post- commissural fornix is ...by fiber tracking in the patient reported ...by tractography is also ...
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Age-related decline in white matter tract integrity and cognitive performance: A DTI tractography and structural equation modeling study
... 2009). White matter tracts serve as connections between brain regions, and likely play an important role in coordinating complex ...these white matter connections could lead to changes in ...
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Preliminary Experience with Visualization of Intracortical Fibers by Focused High Resolution Diffusion Tensor Imaging
... of white matter terminations at the intracortical level in a nondestruc- tive ...gray matter of the visual cortex has been revealed. These data allowed fiber tractography with suf- ...
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Assessment of White Matter Tract Damage in Patients with Amyotrophic Lateral Sclerosis: A Diffusion Tensor MR Imaging Tractography Study
... the fiber bun- dles (as indicated by unchanged axial D ...to fiber bundles, is modulated by the extracellular dis- tance between membranes, axon diameter, and degree of my- ...
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Early Postnatal Development of Corpus Callosum and Corticospinal White Matter Assessed with Quantitative Tractography
... splenium fiber tract has a unique pattern, with no change in MD, FA, or T2W signal intensity with age, suggesting different growth trajectory compared with the other ...
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Diffusion Anisotropy and Diffusivity of White Matter Tracts Within the Temporal Stem in Alzheimer Disease: Evaluation of the “Tract of Interest” by Diffusion Tensor Tractography
... white matter of patients with AD reflected the distribution of neurofibrillary tangles, which may cause degeneration of pro- jection fibers in the white ...microstructural white matter ...
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Anatomic Dissection Tractography: A New Method for Precise MR Localization of White Matter Tracts
... tight fiber bundles coursing in the same direction and making them distinct on MR ...other white matter tracts are intermingled with other fibers that course in various directions (2, ...intermingled ...
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Tract Based Spatial Statistics of Diffusion Tensor Imaging in Adults with Dyslexia
... FSL tractography-based (skeletonized) method for coregistration and group map con- trast statistical comparison in the study of ...in white matter in dyslexic subjects compared with con- trol ...in ...
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Comparison of three tracking methods of white matter fiber bindles based on diffusion MRI
... The mapping between Cartesian and spherical coordinates systems may introduce Cartesian artifacts in the ODF. Cartesian coloration of the ODF may be a particular problem at the coarse Cartesian resolution typically used ...
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