Results 1 to 10 of about 460,716 (260)

Exploring the relationship between cognitive performance and magnetic resonance imaging diffusion parameters in elderly individuals

Einstein (São Paulo)
Objective This study evaluated the association between cognitive function and quantitative magnetic resonance imaging analyses, including brain volume, white matter hyperintensity volume, and diffusivity metrics.
Mariana Athaniel Silva Rodrigues, Thiago Pereira Rodrigues, Aurea Beatriz Martins Bach, Artur José Marques Paulo, Michel Satya Nasvlasky, Yeda Aparecida de Oliveira Duarte, Mayana Zatz, Edson Amaro Junior   +7 more
doaj   +1 more source

Assessing Cerebral White Matter Microstructure in Children With Congenital Sensorineural Hearing Loss: A Tract-Based Spatial Statistics Study

Frontiers in Neuroscience, 2019
ObjectivesTo assess the microstructural properties of cerebral white matter in children with congenital sensorineural hearing loss (CSNHL).MethodsChildren (>4 years of age) with profound CSNHL and healthy controls with normal hearing (the control ...
Muliang Jiang, Zuguang Wen, Liling Long, Chi Wah Wong, Ningrong Ye, Chishing Zee, Bihong T. Chen   +6 more
doaj   +1 more source

Diffusion tensor tractography as a supplementary tool to conventional MRI for evaluating patients with myelopathy

The Egyptian Journal of Radiology and Nuclear Medicine, 2014
Purpose: The aim of this study was to assess the clinical utility of DTI including apparent diffusion coefficient (ADC), fractional anisotropy (FA), in patients with symptoms of spinal cord myelopathy. Patients and methods: Fifteen subjects with clinical
Amal Amin A. El Maati, Nivine Chalabi
doaj   +1 more source

Diffusion tensor imaging of brain white matter in Huntington gene mutation individuals

Arquivos de Neuro-Psiquiatria
Objective To evaluate the role of the involvement of white matter tracts in huntingtin gene mutation patients as a potential biomarker of the progression of the disease. Methods We evaluated 34 participants (11 symptomatic huntingtin gene mutation, 12
Roberta Arb Saba, James H. Yared, Thomas M. Doring, Med Phys, Vanderci Borges, Henrique Ballalai Ferraz   +5 more
doaj   +1 more source

Quasi-P-Wave Reverse Time Migration in TTI Media with a Generalized Fractional Convolution Stencil

Fractal and Fractional
In seismic modeling and reverse time migration (RTM), incorporating anisotropy is crucial for accurate wavefield modeling and high-quality images. Due to the trade-off between computational cost and simulation accuracy, the pure quasi-P-wave equation has
Shanyuan Qin, Jidong Yang, Ning Qin, Jianping Huang, Kun Tian   +4 more
doaj   +1 more source

Tensor-derived diffusion MRI metrics and NODDI in multiple sclerosis classification

NeuroImage: Clinical
Background: Multi-compartment diffusion models and multi-shell acquisitions are increasingly used to overcome limitations of conventional diffusion tensor imaging, but require longer scans and more complex processing.
Julia Lasek, Weronika Mazur-Rosmus, Marcin Wnuk, Monika Marona, Klaudia Kaczówka, Agnieszka Słowik, Artur Krzyżak   +6 more
doaj   +1 more source

Activation of less affected corticospinal tract and poor motor outcome in hemiplegic pediatric patients: a diffusion tensor tractography imaging study

Neural Regeneration Research, 2015
The less affected hemisphere is important in motor recovery in mature brains. However, in terms of motor outcome in immature brains, no study has been reported on the less affected corticospinal tract in hemiplegic pediatric patients.
Jin Hyun Kim, Su Min Son
doaj   +1 more source

Resting-state interhemispheric motor connectivity and white matter integrity correlate with motor impairment in chronic stroke

Frontiers in Neurology, 2013
Functional and structural reorganization in the brain occurs after stroke. The ability to predict motor outcomes may depend on patterns of brain functional and structural connectivity.
Joyce L Chen, Joyce L Chen, Gottfried eSchlaug   +2 more
doaj   +1 more source

White matter microstructural abnormalities in children with severe congenital hypothyroidism

NeuroImage: Clinical, 2019
This study assessed white matter microstructural integrity and behavioral correlates for children with severe congenital hypothyroidism (CH) who were identified and treated early following newborn screening.
Hannah E. Cooper, Enrico Kaden, Lorna F. Halliday, Doris-Eva Bamiou, Kshitij Mankad, Catherine Peters, Christopher A. Clark   +6 more
doaj   +1 more source

Coupling dynamic response of saturated soil with anisotropic thermal conductivity under fractional order thermoelastic theory.

PLoS ONE
In this paper, a two-dimensional (2D) thermo-hydro-mechanical dynamic (THMD) coupling analysis in the presence of a half-space medium is studied using Ezzat's fractional order generalized theory of thermoelasticity.
Ying Guo, Chunbao Xiong, Wen Yu, Jie Li, Jianjun Ma, Cui Du   +5 more
doaj   +1 more source