7,224 Hits in 6.0 sec

A comparison between voxel-based cortical thickness and voxel-based morphometry in normal aging

Chloe Hutton, Bogdan Draganski, John Ashburner, Nikolaus Weiskopf
2009 NeuroImage  
The morphology of cortical grey matter is commonly assessed using T1-weighted MRI together with automated computerised methods such as voxel-based morphometry (VBM) and cortical thickness measures.  ...  We use data from a healthy aging population to perform the comparison, focusing on brain regions where age-related changes have been observed in previous studies.  ...  regions of interest, whole-brain voxel-based comparisons of grey matter and cortical surface-based comparisons of cortical thickness.  ... 
doi:10.1016/j.neuroimage.2009.06.043 pmid:19559801 pmcid:PMC2741580 fatcat:5rmqz6ol7zhx7nbpsvbnrmhcia

A neurodevelopmental basis for BECTS: Evidence from structural MRI

Heath R. Pardoe, Anne T. Berg, John S. Archer, Robert K. Fulbright, Graeme D. Jackson
2013 Epilepsy Research  
Voxel-based morphometry (groups a-c) and cortical thickness analyses (groups b and c) were undertaken within each group and for the groups combined.  ...  The relationship between cortical morphology and age was investigated.  ...  The voxel-based morphometry and cortical thickness analyses both revealed regional increased gray matter in the BECTS subjects.  ... 
doi:10.1016/j.eplepsyres.2012.11.008 pmid:23375559 pmcid:PMC3669634 fatcat:sgwzyne3tfgltomsfb3tpeprrm

Statistical Parametric Mapping of HR-pQCT Images: A Tool for Population-Based Local Comparisons of Micro-Scale Bone Features

Julio Carballido-Gamio, Serena Bonaretti, Galateia J. Kazakia, Sundeep Khosla, Sharmila Majumdar, Thomas F. Lang, Andrew J. Burghardt
2016 Annals of Biomedical Engineering  
We present voxelbased morphometry (VBM) to assess trabecular and cortical bone voxel-based features, and a surface-based framework to assess cortical bone features both in cross-sectional and longitudinal  ...  Voxel-wise and vertex-wise comparisons of bone features were done between the groups of baseline and follow-up scans.  ...  Acknowledgments This work was supported by the NIH/NIAMS under Grants R01AR068456, R01AR060700, R01AR064140 and P30AR066262.  ... 
doi:10.1007/s10439-016-1754-8 pmid:27830488 pmcid:PMC5811200 fatcat:kvgjlnybifdv7deo2tnjsla2ya

Cortical and Subcortical Gray Matter Abnormalities in Schizophrenia Determined Through Structural Magnetic Resonance Imaging With Optimized Volumetric Voxel-Based Morphometry

Hema Ananth, Ioana Popescu, Hugo D. Critchley, Catriona D. Good, Richard S.J. Frackowiak, Raymond J. Dolan
2002 American Journal of Psychiatry  
In standard voxel-based morphometry, erroneous missegmented voxels may appear in segmented images because of systematic differences in skull size, shape, or thickness across study groups.  ...  Data Preprocessing for Voxel-Based Morphometry An optimized voxel-based morphometry protocol was followed for preprocessing and subsequent analysis of imaging data.  ... 
doi:10.1176/appi.ajp.159.9.1497 pmid:12202269 fatcat:encgozbmkrdglgtkqvf2ujz634

Identify the Atrophy of Alzheimer's Disease, Mild Cognitive Impairment and Normal Aging Using Morphometric MRI Analysis

Xiangyu Ma, Zhaoxia Li, Bin Jing, Han Liu, Dan Li, Haiyun Li
2016 Frontiers in Aging Neuroscience  
MRI Atrophy Computing for AD the discrimination accuracy between AD and NC, MCI and NC, AD and MCI was 92.7, 91.7, and 78.4%, respectively. For three-way prediction, the accuracy was 74.6%.  ...  Furthermore, the proposed two indicators could also identify the atrophy rate differences among the three groups in longitudinal analysis.  ...  ACKNOWLEDGMENT The authors thank ADNI research team for their hard work on collecting subject data, and all the subjects who participated in ADNI.  ... 
doi:10.3389/fnagi.2016.00243 pmid:27803665 pmcid:PMC5067377 fatcat:7g3wz4sqozgtrimkdcfkdfwcny

Analysis of Various Automated Structural Computing Methods Inpatient with Early Traumatic Brain Injury

Neeraj Upadhyay, Ashok Munivenkatappa, Bhagavatula Indira Devi, D. K. Subbakrishna, Jamuna Rajeswaran
2014 Open Access Journal of Science and Technology  
Aim: To assess Surface Based Morphometry (SBM) and Voxel Based Morphometry (VBM), the automated computation methods to demonstrate volume and thickness changes in brain among early Traumatic Brain Injury  ...  However, on correlating neuropsychological score with structural changes, SBM demonstrated significant voxels survived in animal naming and Token Test after correcting for multiple comparisons.  ...  Acknowledgment We are grateful to department of science and technology (DST) for their financial support.  ... 
doi:10.11131/2014/101069 fatcat:mnlbq5bxwvav3mnx3hm63azmyy

Brain Atrophy Estimated from Structural Magnetic Resonance Imaging as a Marker of Large-Scale Network-Based Neurodegeneration in Aging and Stroke

Michele Veldsman
2017 Geriatrics  
These methods are currently underutilized despite their ease of acquisition and potential to clarify the progression of brain atrophy as a normal part of healthy aging and in the context of stroke.  ...  Brain atrophy is a normal part of healthy aging, and stroke appears to have neurodegenerative effects, accelerating this atrophy to pathological levels.  ...  Network-Based Neurodegeneration in Aging Grey and white matter atrophy is a normal part of healthy aging [27] .  ... 
doi:10.3390/geriatrics2040034 pmid:31011044 pmcid:PMC6371114 fatcat:i4y2asahn5ez7aqtleo4p7xtre

Detection of Abnormal Visual Cortex in Children With Amblyopia by Voxel-Based Morphometry

Jiang Xi Xiao, Sheng Xie, Jin Tang Ye, Hai Hua Liu, Xiao Ling Gan, Gao Lang Gong, Xue Xiang Jiang
2007 American Journal of Ophthalmology  
The two groups were age-matched with a mean age of 5.8 years. In the amblyopia group, five children had strabismus amblyopia, and eight had anisometropic amblyopia.  ...  After normalization, segmentation, and smoothing of the images, comparison between amblyopic and control groups was derived for the gray matter of the entire brain using parametric statistics. • RESULTS  ...  Until recently, a voxel-based morphometry (VBM) study that focused on the cortical change was addressed, indicating that adults and children with amblyopia have decreased gray matter volume in visual cortical  ... 
doi:10.1016/j.ajo.2006.11.039 pmid:17224120 fatcat:je4f72crbjhrnh3otqi6f265ji

Three shades of grey: detecting brain abnormalities in children with autism using source-, voxel- and surface-based morphometry

Edoardo Pappaianni, Roma Siugzdaite, Sofie Vettori, Paola Venuti, Remo Job, Alessandro Grecucci
2017 European Journal of Neuroscience  
We used Source-Based Morphometry (SoBM), a whole-brain multivariate approach to identify grey matter networks, Voxel-Based Morphometry (VBM), a voxel-wise comparison of the local grey matter concentration  ...  , and Surface-Based Morphometry (SuBM) for the estimation of the cortical parameters.  ...  Voxel-Based Morphometry Voxel-Based Morphometry is a cerebral morphometric technique that involves "a voxel-wise comparison of the local concentration of gray matter between two groups of subjects" (Ashburner  ... 
doi:10.1111/ejn.13704 pmid:28921735 fatcat:ni6iwb2smveczavurbqdx37nxa

Voxel-based Morphometry of Brain MRI in Normal Aging and Alzheimer's Disease

Hiroshi Matsuda
2012 Aging and Disease  
Voxel-based morphometry (VBM) using structural brain MRI has been widely used for assessment of normal aging and Alzheimer's disease (AD).  ...  In normal aging, most cortical regions prominently in frontal and insular areas have been reported to show age-related gray matter atrophy.  ...  Acknowledgment This work was supported by a Grant-in-Aid for Scientific Research (C), Ministry of Education, Culture, Sports, Science and Technology, Japan (24591786).  ... 
pmid:23423504 pmcid:PMC3570139 fatcat:7pquadfq4zafjkwlf7resue5iq

Gender and Hemispheric Differences in Epilepsy Diagnosed by Voxel-based Morphometry (VBM) Method: a Pilot Cortical Thickness Study

Shahid Bashir, Baradi Raidah, Fouad Ghamdi
2019 Acta Informatica Medica  
Our aim was to study gender differences and anatomical abnormalities in epilepsy patients (EP) by voxel-based morphometry (VBM) methods.  ...  Voxel-based morphometry (VBM) is a neuroimaging analysis technique that allows investigation of focal differences in brain anatomy, using the statistical approach of statistical parametric mapping.  ...  Hemispheric Differences in Epilepsy Diagnosed by Voxel-based Morphometry (VBM) Method: a Pilot Cortical Thickness Study Comparing between genders in cases only Left Putamen 5614.8 ± 117.5 5204.5  ... 
doi:10.5455/aim.2019.27.171-176 pmid:31762573 pmcid:PMC6853718 fatcat:3z7lsnok5zdvfechvz5tr5ljm4

Gray and White Matter Changes Associated with Psychophysical Functions Induced by Diabolo Training in Young Men

Ming-Chung Chou, Jui-Hsing Lin, Ming-Ting Wu
2022 Tomography  
Voxel-based morphometry (VBM), surface-based morphometry (SBM), and voxel-wise DTI analysis were carried out to detect the GM volume, cortical thickness, and WM diffusion changes using T1-weighted image  ...  The VBM and SBM analyses revealed that the GM volume and cortical thickness were significantly increased in the brain areas associated with visual, motor, sensory, and spatial cognition functions.  ...  The schematic diagram for voxel-based morphometry (A), surface-based morphometry (B), and voxel-wise DTI (C) analyses. T1WI = T1-weighted image.  ... 
doi:10.3390/tomography8020070 pmid:35314647 pmcid:PMC8938797 fatcat:c6fm3kdsb5asbfahja624fw47e

Impact of Methodologic Choice for Automatic Detection of Different Aspects of Brain Atrophy by Using Temporal Lobe Epilepsy as a Model

C. Scanlon, S.G. Mueller, D. Tosun, I. Cheong, P. Garcia, J. Barakos, M.W. Weiner, K.D. Laxer
2011 American Journal of Neuroradiology  
hippocampus; ULD ϭ unbiased large deformation; VBM ϭ voxel-based morphometry; WM ϭ white matter  ...  ABBREVIATIONS: DBM ϭ deformation-based morphometry; EMS ϭ expectation maximization segmentation; FDR ϭ false discovery rate; FS ϭ Freesurfer: FS-CT ϭ FS-based cortical thickness; FSL ϭ FMRIB Software Library  ...  and should be considered a limitation of this method. 5) None of the 3 methods depicts the "whole truth," ie, just because a brain region seems normal in a VBM or cortical thickness analysis, it cannot  ... 
doi:10.3174/ajnr.a2578 pmid:21852375 pmcid:PMC3845529 fatcat:hst2ytoizvfjramkqdibj43ybe

Higher midlife CAIDE score is associated with increased brain atrophy in a cohort of cognitively healthy middle-aged individuals

Xulin Liu, Maria-Eleni Dounavi, Karen Ritchie, Katie Wells, Craig W. Ritchie, Li Su, Graciela Muniz-Terrera, John T. O'Brien
2021 Journal of Neurology  
Voxel-based morphometry was performed in FSL 6.0.1 to identify areas of grey matter (GM) volume differences both cross-sectionally and longitudinally between subjects with high and low baseline CAIDE score  ...  Conclusion This study demonstrated accelerated GM atrophy concentrated in several AD signature cortical regions in healthy middle-aged subjects with high CAIDE scores.  ...  Acknowledgements We thank all the PREVENT-Dementia participants for their enthusiastic participation in this study. We thank the NIHR Cambridge Biomedical Centre for support.  ... 
doi:10.1007/s00415-020-10383-8 pmid:33423129 fatcat:k37z365ko5fbtlrqezyakzhase

Structural MRI in Autism Spectrum Disorder

2011 Pediatric Research  
We summarize findings from studies based on voxel-based morphometry, surface-based morphometry, tensor-based morphometry, and diffusiontensor imaging.  ...  Magnetic resonance (MR) examination provides a powerful tool for investigating brain structural changes in children with autism spectrum disorder (ASD).  ...  As age increases amygdala volume in autistic subjects decreases relative to controls. Voxel-based morphometry.  ... 
doi:10.1203/pdr.0b013e318212c2b3 pmid:21289538 pmcid:PMC3081653 fatcat:cbpc5hsctndmjkyoee6bap4wwe
« Previous Showing results 1 — 15 out of 7,224 results