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Increased Gray Matter Diffusion Anisotropy in Patients with Persistent Post-Concussive Symptoms following Mild Traumatic Brain Injury
(Public Library of Science, 2013)
A significant percentage of individuals diagnosed with mild traumatic brain injury (mTBI) experience persistent post-concussive symptoms (PPCS). Little is known about the pathology of these symptoms and there is often no ...
On Diffusion Tensor Estimation
(IEEE, 2006)
In this paper we propose a formal formulation for the estimation of Diffusion Tensors in the space of symmetric positive semidefinite (PSD) tensors. Traditionally, diffusion tensor model estimation has been carried out ...
Genetic contributions to changes of fiber tracts of ventral visual stream in 22q11.2 deletion syndrome
(Springer Science + Business Media, 2013)
Patients with 22q11.2 deletion syndrome (22q11.2DS) represent a population at high risk for
developing schizophrenia, as well as learning disabilities. Deficits in visuo-spatial memory are
thought to underlie some of the ...
Fiber geometry in the corpus callosum in schizophrenia: Evidence for transcallosal misconnection
(Elsevier BV, 2011)
Background—Structural abnormalities in the callosal fibers connecting the heteromodal association areas of the prefrontal and temporoparietal cortices bilaterally have been suggested to play a role in the etiology of ...
Increased diffusivity in superior temporal gyrus in patients with schizophrenia: A Diffusion Tensor Imaging study
(Elsevier BV, 2009)
Background: Superior temporal gyrus (STG) volume reduction is one of the most consistent findings in schizophrenia. The goal of this study was to conduct the first diffusion tensor imaging (DTI) study to investigate altered ...
Sparse Texture Active Contour
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
In image segmentation, we are often interested in using certain quantities to characterize the object, and perform the classification based on them: mean intensity, gradient magnitude, responses to certain predefined ...
Using the logarithm of odds to define a vector space on probabilistic atlases
(Elsevier BV, 2007)
The Logarithm of the Odds ratio (LogOdds) is frequently used in areas such as artificial neural networks, economics, and biology, as an alternative representation of probabilities. Here, we use LogOdds to place probabilistic ...
Uncinate fasciculus abnormalities in recent onset schizophrenia and affective psychosis: A diffusion tensor imaging study
(Elsevier BV, 2009)
Two of the most frequently investigated regions in diffusion tensor imaging studies in chronic schizophrenia are the uncinate fasciculus (UF) and cingulum bundle (CB). The purpose of the present study was to determine ...
Statistical analysis of fiber bundles using multi-tensor tractography: application to first-episode schizophrenia
(Elsevier BV, 2011)
This work proposes a new method to detect abnormalities in fiber bundles of first-episode (FE) schizophrenia patients. Existing methods have either examined a particular region of interest (ROI) or used voxel based morphometry ...
Local white matter geometry from diffusion tensor gradients
(Elsevier BV, 2010)
We introduce a mathematical framework for computing geometrical properties of white matter fibres directly from diffusion tensor fields. The key idea is to isolate the portion of the gradient of the tensor field corresponding ...