Results 71 to 80 of about 900,963 (349)

Moyamoya Disease and the Risk of Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Moyamoya disease (MMD) is a rare cerebrovascular disorder characterized by the progressive narrowing of arteries at the base of the brain, forming abnormal collateral vascular networks. While vascular parkinsonism is noted in MMD, its link to Parkinson's disease (PD) has not been explored.
Dallah Yoo, Jeong‐Yong Shin, Rugyeom Lee, Jiwon Cheon, Ji Hun Kim, Doeun Kim, Jae‐Kyung Won, In‐Hwan Oh, Yunjong Lee, Tae‐Beom Ahn   +9 more
wiley   +1 more source

Altered Dynamic Functional Network Connectivity in Post‐Stroke Aphasia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Previous studies examining post‐stroke aphasia (PSA) patients via resting‐state functional magnetic resonance imaging (rs‐fMRI) have predominantly focused on static functional connectivity. In contrast, the current investigation aims to elucidate the alterations in dynamic functional network connectivity (dFNC) among PSA patients ...
Guihua Xu, Yongsheng Wu, Junyu Qu, Rui Zhu, Wenwen Xu, Jiaxiang Xin, Dawei Wang   +6 more
wiley   +1 more source

High-resolution mapping of substantia nigra in Parkinson’s disease using 7 tesla magnetic resonance imaging

npj Parkinson's Disease
Parkinson’s disease causes a progressive loss of dopaminergic neurons and iron accumulation in the substantia nigra pars compacta. Using ultra-high field magnetic resonance imaging (MRI) at 7 tesla in 43 Parkinson’s patients and 24 healthy controls, we ...
Christopher F. Madelung, Annemette Løkkegaard, Søren A. Fuglsang, Marta M. Marques, Vincent O. Boer, Kristoffer H. Madsen, Anne-Mette Hejl, David Meder, Hartwig R. Siebner   +8 more
doaj   +1 more source

A clinical-radiomics combined model based on carotid atherosclerotic plaque for prediction of ischemic stroke

Frontiers in Neurology
ObjectivesTo accurately predict the risk of ischemic stroke, we established a radiomics model of carotid atherosclerotic plaque-based high-resolution vessel wall magnetic resonance imaging (HR-VWMRI) and combined it with clinical indicators.Materials and
Na Han, Na Han, Na Han, Wanjun Hu, Wanjun Hu, Wanjun Hu, Yurong Ma, Yurong Ma, Yu Zheng, Yu Zheng, Yu Zheng, Songhong Yue, Songhong Yue, Songhong Yue, Laiyang Ma, Laiyang Ma, Laiyang Ma, Jie Li, Jie Li, Jing Zhang, Jing Zhang   +20 more
doaj   +1 more source

Prevalence of Stroke and Diagnostic Performance of Emergency MRI in Acute Isolated Dizziness

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Stroke is frequently misdiagnosed in patients presenting with acute isolated dizziness; the optimal imaging modality for this population remains debated. This study aimed to determine the prevalence of stroke among patients with isolated dizziness and to assess the diagnostic accuracy of magnetic resonance imaging (MRI) and computed ...
Xiao Hu, Sijia Liu, Xiaosan Wu, Sunhong Yan, Jie Shen, Lei Zhu, Xueyun Liu, Zijie Wang, Chu Chen, Tiannan Yang, Chuanqin Fang, Qi Li   +11 more
wiley   +1 more source

Thalamocortical Connectivity and Microstructural Changes in Congenital and Late Blindness

Neural Plasticity, 2017
There is ample evidence that the occipital cortex of congenitally blind individuals processes nonvisual information. It remains a debate whether the cross-modal activation of the occipital cortex is mediated through the modulation of preexisting ...
N. H. Reislev, T. B. Dyrby, H. R. Siebner, H. Lundell, M. Ptito, R. Kupers   +5 more
doaj   +1 more source

Lowering the thermal noise barrier in functional brain mapping with magnetic resonance imaging

Nature Communications, 2020
Functional magnetic resonance imaging (fMRI) has become an indispensable tool for investigating the human brain. However, the inherently poor signal-to-noise-ratio (SNR) of the fMRI measurement represents a major barrier to expanding its spatiotemporal ...
L. Vizioli, S. Moeller, Logan T Dowdle, M. Akçakaya, Federico De Martino, E. Yacoub, K. Ugurbil   +6 more
semanticscholar   +1 more source

The Diverse Neuromuscular Spectrum of VPS13A Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective VPS13A disease (chorea‐acanthocytosis) is a rare neurodegenerative disorder caused by biallelic variants in VPS13A, typically presenting with hyperkinetic movement disorders, while neuromuscular signs are often mild. The aim of the project was to investigate the frequency and severity of neuromuscular impairment in VPS13A disease ...
Anne Buchberger, Evamaria Riedel, Marie Hackenberg, Alexander Mensch, Stefanie Beck‐Woedl, Joohyun Park, Tobias B. Haack, Bernhard Haslinger, Jan Kirschke, Holger Prokisch, Andreas Hermann, Christian Mawrin, Adrian Danek, Benedikt Schoser, Kevin Peikert, Marcus Deschauer, Isabell Cordts   +16 more
wiley   +1 more source

Theta Activity in the Left Dorsal Premotor Cortex During Action Re-Evaluation and Motor Reprogramming

Frontiers in Human Neuroscience, 2018
The ability to rapidly adjust our actions to changes in the environment is a key function of human motor control. Previous work implicated the dorsal premotor cortex (dPMC) in the up-dating of action plans based on environmental cues.
Giovanni Pellegrino, Giovanni Pellegrino, Leo Tomasevic, Damian Marc Herz, Damian Marc Herz, Kit Melissa Larsen, Kit Melissa Larsen, Hartwig Roman Siebner, Hartwig Roman Siebner   +8 more
doaj   +1 more source

Functional Magnetic Resonance Imaging in Pediatrics [PDF]

Neuropediatrics, 2003
Functional magnetic resonance imaging (fMRI) allows non-invasive assessment of human brain function in vivo by detecting blood flow differences. In this review, we want to illustrate the background and different aspects of performing functional magnetic resonance imaging (fMRI) in the pediatric age group.
Wilke, Marko, MD, Holland, Scott K., PhD, Myseros, John S., MD, Schmithorst, Vincent J., PhD, Ball, William S.   +4 more
openaire   +3 more sources