Results 41 to 50 of about 1,683,867 (302)

An Open MRI Dataset For Multiscale Neuroscience

open access: yesScientific Data, 2022
Measurement(s) Brain anatomy • Brain activity • Diffusion • Brain microstructure • Functional connectivity • Structural connectivity Technology Type(s) magnetic resonance imaging (MRI) • Functional Magnetic Resonance Imaging • Diffusion Weighted Imaging •
Jessica Royer   +16 more
doaj   +1 more source

Quantitative Evaluation of Enhanced Multi-plane Clinical Fetal Diffusion MRI with a Crossing-Fiber Phantom

open access: yes, 2021
Diffusion Magnetic Resonance Imaging (dMRI) has become widely used to study in vivo white matter tissue properties non-invasively. However, fetal dMRI is greatly limited in Signal-to-Noise ratio and spatial resolution.
Lajous, Hélène   +22 more
core   +1 more source

Dynamic structural connectivity changes in cortical and cortico-striatal strokes in mice

open access: yesNeural Regeneration Research
Beyond immediate neuronal damage, functional and structural connectivity is altered brain-wide with implications for functional deficits and recovery in stroke.
Fatemeh Mahani   +7 more
doaj   +1 more source

Optimization of diffusion imaging for multiple target regions using maximum likelihood estimation

open access: yesCurrent Directions in Biomedical Engineering, 2017
In this work a procedure is proposed to determine an optimal distribution of b-values in diffusion MRI measu-rements. The optimization procedure uses a method of Maximum Likelihood Estimation which can operate on any given number of b-values, values of ...
Bielak Lars, Bock Michael
doaj   +1 more source

Correlation between ultrasound-guided percutaneous breast biopsy and diffusion-weighted magnetic resonance imaging of the breast for evaluation of solid breast lesions

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2020
Background MRI’s role had been increasing in breast imaging. In this study, we evaluated the role of diffusion-weighted MRI in correlation with ultrasound-guided percutaneous breast biopsy for diagnosis of solid breast lesions.
Osama Lotfy Alabd   +4 more
doaj   +1 more source

Mechanisms of Cognitive Impairment in Cerebral Small Vessel Disease: Multimodal MRI Results from the St George's Cognition and Neuroimaging in Stroke (SCANS) Study. [PDF]

open access: yes, 2013
Cerebral small vessel disease (SVD) is a common cause of vascular cognitive impairment. A number of disease features can be assessed on MRI including lacunar infarcts, T2 lesion volume, brain atrophy, and cerebral microbleeds.
Lawrence, AJ   +40 more
core   +2 more sources

Evaluating fibre orientation dispersion in white matter: Comparison of diffusion MRI, histology and polarized light imaging

open access: yesNeuroImage, 2017
Diffusion MRI is an exquisitely sensitive probe of tissue microstructure, and is currently the only non-invasive measure of the brain's fibre architecture.
Jeroen Mollink   +11 more
doaj   +1 more source

Multidimensional diffusion MRI

open access: yesJournal of Magnetic Resonance, 2017
Principles from multidimensional NMR spectroscopy, and in particular solid-state NMR, have recently been transferred to the field of diffusion MRI, offering non-invasive characterization of heterogeneous anisotropic materials, such as the human brain, at an unprecedented level of detail.
openaire   +2 more sources

Clinical Research with Advanced Diffusion Encoding Methods in MRI

open access: yes, 2020
This chapter offers a comprehensive summary of applications of advanced diffusion encoding methods in MRI within a narrowly defined area of in vivo human measurements with imaging read-out and voxel-by-voxel data analysis.
Y. Zheng   +51 more
core   +1 more source

Structural network efficiency is associated with cognitive impairment in small-vessel disease. [PDF]

open access: yes, 2014
To characterize brain network connectivity impairment in cerebral small-vessel disease (SVD) and its relationship with MRI disease markers and cognitive impairment.METHODS: A cross-sectional design applied graph-based efficiency analysis to deterministic
Lawrence, AJ   +14 more
core   +1 more source

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