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Maximum Entropy Estimation of Glutamate and Glutamine in MR Spectroscopic Imaging
(Springer Science + Business Media, 2014)
Magnetic resonance spectroscopic imaging (MRSI) is often used to estimate the concentration of several brain metabolites. Abnormalities in these concentrations can indicate specific pathology, which can be quite useful in ...
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 ...
On Describing Human White Matter Anatomy: The White Matter Query Language
(Springer Science + Business Media, 2013)
The main contribution of this work is the careful syntactical definition of major white matter tracts in the human brain based on a neuroanatomist’s expert knowledge. We present a technique to formally describe white matter ...
A Geometry-Based Particle Filtering Approach to White Matter Tractography
(Springer Science + Business Media, 2010)
We introduce a fibre tractography framework based on a particle filter which estimates a local geometrical model of the underlying white matter tract, formulated as a `streamline flow' using generalized helicoids. The ...
Sparse Multi-Shell Diffusion Imaging
(Springer Science + Business Media, 2011)
Diffusion magnetic resonance imaging (dMRI) is an important tool that allows non-invasive investigation of neural architecture of the brain. The data obtained from these in-vivo scans provides important information about ...
White Matter Bundle Registration and Population Analysis Based on Gaussian Processes
(Springer Science + Business Media, 2011)
This paper proposes a method for the registration of white matter tract bundles traced from diffusion images and its extension to atlas generation. Our framework is based on a Gaussian process representation of tract density ...
Gray matter alterations in early aging: A diffusion magnetic resonance imaging study
(Wiley-Blackwell, 2013)
Many studies have observed altered neurofunctional and structural organization in the aging brain. These observations from functional neuroimaging studies show a shift in brain activity from the posterior to the anterior ...
A filtered approach to neural tractography using the Watson directional function
(Elsevier BV, 2010)
We propose a technique to simultaneously estimate the local fiber orientations and perform multifiber tractography. Existing techniques estimate the local fiber orientation at each voxel independently so there is no running ...
Tensor kernels for simultaneous fiber model estimation and tractography
(Wiley-Blackwell, 2010)
This paper proposes a novel framework for joint orientation distribution function (ODF) estimation and tractography based on a new class of tensor-kernels. Existing techniques estimate the local fiber orientation at each ...
A review of magnetic resonance imaging and diffusion tensor imaging findings in mild traumatic brain injury
(Springer Science + Business Media, 2012)
Mild traumatic brain injury (mTBI), also referred to as concussion, remains a controversial diagnosis because the brain often appears quite normal on conventional computed tomography (CT) and magnetic resonance imaging ...