Search
Now showing items 1-10 of 33
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 ...
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 ...
Attentional networks and cingulum bundle in chronic schizophrenia?
(Elsevier BV, 2007)
Thirty patients with chronic schizophrenia and 30 age-matched controls performed the Attention Network Test (ANT). A subset of the patient group (n=18) also had available magnetic resonance diffusion tensor imaging (DTI) ...
A Method for Clustering White Matter Fiber Tracts
(American Society of Neuroradiology, 2006)
BACKGROUND/PURPOSE: Despite its potential for visualizing white matter fiber tracts in vivo, diffusion tensor tractography has found only limited applications in clinical research in which specific anatomic connections ...
Restoration of DWI Data Using a Rician LMMSE Estimator
(Institute of Electrical & Electronics Engineers (IEEE), 2008)
This paper introduces and analyzes a linear minimum mean square error (LMMSE) estimator using a Rician noise model and its recursive version (RLMMSE) for the restoration of diffusion weighted images. A method to estimate ...
Voxel-Based Morphometric Analysis of Gray Matter in First Episode Schizophrenia
(Elsevier BV, 2002)
Voxel-based morphometry (VBM) may afford a more rapid and extensive survey of gray matter abnormalities in schizophrenia than manually drawn region of interest (ROI) analysis, the current gold standard in structural MRI. ...
Uncinate Fasciculus Findings in Schizophrenia: A Magnetic Resonance Diffusion Tensor Imaging Study
(American Psychiatric Publishing, 2002)
Objective: Disruptions in connectivity between the frontal and temporal lobes may explain some of the symptoms observed in schizophrenia. Conventional magnetic resonance imaging (MRI) studies, however, have not shown ...
Method for Combining Information from White Matter Fiber Tracking and Gray Matter Parcellation
(American Society of Neuroradiology, 2004)
We introduce a method for combining fiber tracking from diffusion-tensor (DT) imaging with cortical gray matter parcellation from structural high-spatial-resolution 3D spoiled gradient-recalled acquisition in the steady ...
Findings in Schizophrenia by Tract-Oriented DT-MRI Analysis
(Springer Science + Business Media, 2008)
This paper presents a tract-oriented analysis of diffusion tensor (DT) images of the human brain. We demonstrate that unlike the commonly used ROI-based methods for population studies, our technique is sensitive to the ...
A Kernel-Based Approach for User-Guided Fiber Bundling using Diffusion Tensor Data
(2006)
This paper describes a novel user-guided method for grouping fibers from diffusion tensor MRI tractography into bundles. The method finds fibers, that passing through user-defined ROIs, still fit to the underlying data ...