نتایج جستجو برای: white matter wm

تعداد نتایج: 372237  

2009
F. Agosta S. Galantucci T. Stojkovic A. Tomic I. Petrovic G. Longoni V. Kostic M. Filippi

Introduction. Progressive supranuclear palsy (PSP) is the second most common cause of neurodegenerativeparkinsonism after idiopathic Parkinson’s disease (PD) [1]. A different ante-mortem distribution of white matter (WM) damage may exist in PD and PSP patients, which might be helpful in the diagnostic work-up of these patients [2]. In this study, we investigated microstructural changes of WM in...

2016
Martijn D Steenwijk Marita Daams Petra JW Pouwels Lisanne J Balk Prejaas K Tewarie Joep Killestein Bernard MJ Uitdehaag Jeroen JG Geurts Frederik Barkhof Hugo Vrenken

Purpose To identify the focal and diffuse white matter (WM) pathology measures that are related to respectively whole brain, deep and cortical gray matter (GM) atrophy in long-standing multiple sclerosis (MS). Materials and methods The institutional review board approved the study; all subjects gave written informed consent. MRI was performed at 3T in 208 MS patients with long-standing disease ...

Journal: :Neurology. Genetics 2016
Fatima Ameur Olivier Colliot Paola Caroppo Sebastian Ströer Didier Dormont Alexis Brice Carole Azuar Bruno Dubois Isabelle Le Ber Anne Bertrand

Frontotemporal lobar degeneration (FTLD) has a high frequency of genetic forms; the 2 most common are GRN (progranulin) and C9ORF72 mutations. Recently, our group reported extensive white matter (WM) lesions in 4 patients with FTLD caused by GRN mutation, in the absence of noteworthy cardiovascular risk factors,(1) in line with other studies in GRN mutation carriers.(2,3) Here we compared the c...

2014
Evan Fletcher Owen Carmichael Ofer Pasternak Klaus H. Maier-Hein Charles DeCarli

In a cohort of community-recruited elderly subjects with normal cognition at initial evaluation, we found that baseline fornix white matter (WM) microstructure was significantly correlated with early volumetric longitudinal tissue change across a region of interest (called fornix significant ROI, fSROI), which overlaps circuits known to be selectively vulnerable to Alzheimer's dementia patholog...

2016
Petra V. Viher Katharina Stegmayer Stéphanie Giezendanner Andrea Federspiel Stephan Bohlhalter Tim Vanbellingen Roland Wiest Werner Strik Sebastian Walther

Diffusion tensor imaging (DTI) studies have provided evidence of widespread white matter (WM) abnormalities in schizophrenia. Although these abnormalities appear clinically significant, the relationship to specific clinical symptoms is limited and heterogeneous. This study examined the association between WM microstructure and the severity of the five main DSM-5 schizophrenia symptom dimensions...

2014
Jodie R. Gawryluk Erin L. Mazerolle Steven D. Beyea Ryan C. N. D'Arcy

BACKGROUND Recent evidence shows that functional magnetic resonance imaging (fMRI) can detect activation in white matter (WM). Such advances have important implications for understanding WM dysfunction. A key step in linking neuroimaging advances to the evaluation of clinical disorders is to examine whether WM activation can be detected at the individual level during clinical tests associated w...

2008
Jakub P. Piątkowski Mark E. Bastin Amos J. Storkey

Diffusion mri (dmri) is the only method that allows in vivo segmentation of white matter (wm) fasciculi and assessment of their integrity, based on the water diffusion anisotropy caused by highly ordered bundles of axons [5, 6]. It can therefore be used to study wm decline: loss of integrity and tract thinning. Their disambiguation given the mri data is not trivial. We show that it is possible ...

2012
Barbara Braga Clarissa L. Yasuda Fernando Cendes

Introduction. Mesial temporal lobe epilepsy (MTLE) associated with hippocampal sclerosis is highly refractory to clinical treatment. MRI voxel-based morphometry (VBM) of T1-weighted images has revealed a widespread pattern of gray matter (GM) and white matter (WM) atrophy in MTLE. Few studies have investigated the role of T2-weighted images in revealing WM atrophy using VBM. Objectives. To comp...

Journal: :Archives of disease in childhood. Fetal and neonatal edition 2010
S Horsch B Skiöld B Hallberg B Nordell A Nordell M Mosskin H Lagercrantz U Adén M Blennow

OBJECTIVES Conventional MRI at term age has been reported to be superior to cranial ultrasound (cUS) in detecting white matter (WM) abnormalities and predicting outcome in preterm infants. However, in a previous study cUS was performed during the first 6 weeks only and not in parallel to MRI at term age. Therefore, the aim of the present work was to study brain injuries in preterm infants perfo...

Journal: :Biological Psychiatry 2021

Individuals with psychosis have an increased risk of committing acts violence. Providing neurobiological evidence for the extent to which violence in is driven by psychotic symptoms and/or antisocial traits could important clinical and legal implications. White matter (WM) abnormalities been reported individuals those traits. However, it not clear if WM violent (violent PSY) resemble previously...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید