Search
Now showing items 1-10 of 13
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 ...
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 ...
A 3D interactive multi-object segmentation tool using local robust statistics driven active contours
(Elsevier BV, 2012)
Extracting anatomical and functional significant structures renders one of the important tasks for both the theoretical study of the medical image analysis, and the clinical and practical community. In the past, much work ...
Stochastic tractography study of Inferior Frontal Gyrus anatomical connectivity in schizophrenia
(Elsevier BV, 2011)
Background—Abnormalities within language-related anatomical structures have been associated with clinical symptoms and with language and memory deficits in schizophrenia. Recent studies suggest disruptions in functional ...
A Hierarchical Algorithm for MR Brain Image Parcellation
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
We introduce an algorithm for segmenting brain magnetic resonance (MR) images into anatomical compartments such as the major tissue classes and neuro-anatomical structures of the gray matter. The algorithm is guided by ...
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 ...
Anterior limb of the internal capsule in schizophrenia: a diffusion tensor tractography study
(Springer Science + Business Media, 2012)
Thalamo-cortical feedback loops play a key role in the processing and coordination of processing and integration of perceptual inputs and outputs, and disruption in this connection has long been hypothesized to contribute ...
Shape abnormalities of caudate nucleus in schizotypal personality disorder
(Elsevier BV, 2009)
Background: Previously, we reported abnormal volume and global shape in the caudate nucleus in schizotypal personality disorder (SPD). Here, we use a new shape measure which importantly permits local in addition to global ...
Reduced interhemispheric connectivity in schizophrenia-tractography based segmentation of the corpus callosum
(Elsevier BV, 2008)
Background: A reduction in interhemispheric connectivity is thought to contribute to the etiology of schizophrenia. Diffusion Tensor Imaging (DTI) measures the diffusion of water and can be used to describe the integrity ...
Excessive Extracellular Volume Reveals a Neurodegenerative Pattern in Schizophrenia Onset
(Society for Neuroscience, 2012)
Diffusion MRI has been successful in identifying the existence of white matter abnormalities in schizophrenia in vivo. However, the role of these abnormalities in the etiology of schizophrenia is not well understood. ...