نتایج جستجو برای: cortical thickness

تعداد نتایج: 210457  

2000
Frithjof Kruggel Yves von Cramon

Besides normal aging, a number of brain diseases are known to reduce the amount of grey matter in the brain. To better understand the nature and progression of these disease processes, quantitative measurements of relevant brain structures, such as the regional cortical thickness, are highly desirable. Starting from high resolution volumetric MR images of the human head, a reliable segmentation...

2016
Viola Oertel-Knoechel Christian Knoechel Anna Rotarska-Jagiela Britta Reinke David Prvulovic Corinna Haenschel Harald Hampel David E.J. Linden

The current study provides a complete MRI analysis of thickness throughout the cerebral cortical mantle in patients with schizophrenia (SZ) and rigorously screened and matched unaffected relatives and controls and an assessment of its relation to psychopathology and subjective cognitive function. We analyzed 3D-anatomical magnetic resonance imaging data sets, obtained at 3 Tesla, from three dif...

2001
Jason Lerch

Introduction The overall goal of this master's project is to study the effect of aging on the thickness of the cerebral cortex. There are three inherent challenges in this project: Creating a coherent definition of cortical thickness. Implementing that definition numerically in the context of real MRI data. Applying the thickness implementation to a real dataset of an aging population, and inte...

Journal: :Biological psychiatry 2004
Laura C Wiegand Simon K Warfield James J Levitt Yoshio Hirayasu Dean F Salisbury Stephan Heckers Chandlee C Dickey Ron Kikinis Ferenc A Jolesz Robert W McCarley Martha E Shenton

BACKGROUND Findings from postmortem studies suggest reduced prefrontal cortical thickness in schizophrenia; however, cortical thickness in first-episode schizophrenia has not been evaluated using magnetic resonance imaging (MRI). METHODS Prefrontal cortical thickness was measured using MRI in first-episode schizophrenia patients (n = 17), first-episode affective psychosis patients (n = 17), a...

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