Does restricted diffusion in the splenium indicate an acute infarct?

ConclusionNot every diffuse restriction observed on MRI indicates an ischemic stroke. Although radiologic images of the splenium may suggest acute ischemic infarction, the actual cause may be another pathology. Therefore, the symptoms and aetiologies of patients with splenium lesions should be considered and investigated from a wide range of perspectives.
Source: Acta Neurologica Belgica - Category: Neurology Source Type: research

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ConclusionsPhysicians should be alert of this tumor despite its rarity because diagnostic delays increase mortality. In this report, we summarize the features that differentiate PPAS from PE and the importance of imaging in diagnosing the tumor.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
Publication date: Available online 12 October 2019Source: Multiple Sclerosis and Related DisordersAuthor(s): Shahin Khayambashi, Amber Salter, Tuula Tyry, Gary R Cutter, Robert J Fox, Ruth Ann MarrieAbstractObjectiveWe aimed to determine the association between gender identity and sexual orientation on healthcare-related utilization in persons with multiple sclerosis (MS), as well as satisfaction with their doctor and comfort discussing sexual health with their doctor.MethodsWe surveyed participants from the North American Research Committee on Multiple Sclerosis (NARCOMS) Registry regarding their gender identity and sexua...
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research
This study aimed to compare short- and long-term results for patients undergoing either aortic valve-sparing reimplantation (David) procedure (AVr-D) or biological aortic root replacement (Bentall) procedure (ARr-B-bio) for aortic root pathology.MethodsWe compared outcomes for patients who underwent AVr-D (n = 261) or ARr-B-bio (n = 150) between 2000 and 2015 at our institution. The mean age of patients was 55 ± 13 years and 21.7% (n = 89) were female. ARr-B-bio patients were significantly older than AVr-D patients (58 ± 10 vs 53&thins...
Source: Indian Journal of Thoracic and Cardiovascular Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
ConclusionsThis case series demonstrates that the use of a high frequency jet ventilator for cardiac MRI was feasible, safe, providing good quality cardiac imaging and avoiding anesthesia personnel to be inside the hazardous environment of MRI room. Future studies are needed to confirm its safety and efficiency in pediatric patients.ResumoJustificativa e objetivosA ressonância magnética (RM) cardíaca é uma técnica utilizada na avaliação de crianças com cardiopatias congênitas. A anestesia geral garante imobilidade, especialmente em pacientes não cooperador...
Source: Brazilian Journal of Anesthesiology - Category: Anesthesiology Source Type: research
Publication date: 1 January 2020Source: NeuroImage, Volume 204Author(s): Rebecca S. Dewey, Susan T. Francis, Hannah Guest, Garreth Prendergast, Rebecca E. Millman, Christopher J. Plack, Deborah A. HallAbstractIn animal models, exposure to high noise levels can cause permanent damage to hair-cell synapses (cochlear synaptopathy) for high-threshold auditory nerve fibers without affecting sensitivity to quiet sounds. This has been confirmed in several mammalian species, but the hypothesis that lifetime noise exposure affects auditory function in humans with normal audiometric thresholds remains unconfirmed and current evidenc...
Source: NeuroImage - Category: Neuroscience Source Type: research
We report significant links between the rate of neuroplastic change of cortical surface anatomy, and children's early mathematical skills. In particular, most of the behavioral variance (about 73%) of children's visuospatial abilities was explained by the change in cortical thickness in the right superior parietal cortex. Moreover, half of the behavioral variance (about 55%) of children's arithmetic abilities was explained by the change in cortical folding in the right intraparietal sulcus. Additional associations for arithmetic abilities were found for cortical thickness change of the right temporal lobe, and the left mid...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: 1 January 2020Source: NeuroImage, Volume 204Author(s): Jingjing Chang, Jianping Hu, Chiang-Shan R. Li, Rongjun YuAbstractLife stress has been shown to impact cognitive functions, including inhibitory control. However, the immediate effects of acute stress on inhibitory control and the underlying neural mechanisms remain unclear. In a behavioral pilot study (N = 30) and a within-subject functional magnetic resonance imaging study (N = 30), we examined how acute stress induced by Trier Social Stress Test influenced inhibitory control in a stop signal task. Behavioral results across two studies showe...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: Available online 12 October 2019Source: NeuroImageAuthor(s): Joanes Grandjean, Carola Canella, Cynthia Anckaerts, Gülebru Ayrancı, Salma Bougacha, Thomas Bienert, David Buehlmann, Ludovico Coletta, Daniel Gallino, Natalia Gass, Clément M. Garin, Nachiket Abhay Nadkarni, Neele Hübner, Meltem Karatas, Yuji Komaki, Silke Kreitz, Francesca Mandino, Anna E. Mechling, Chika Sato, Katja SauerAbstractPreclinical applications of resting-state functional magnetic resonance imaging (rsfMRI) offer the possibility to non-invasively probe whole-brain network dynamics and to investigate the determinant...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: Available online 9 October 2019Source: NeuroImageAuthor(s): Aline M. Thomas, Jiadi Xu, Peter A. Calabresi, Peter C.M. van Zijl, Jeff W.M. BulteAbstractMultiple sclerosis (MS) is an autoimmune disorder that targets myelin proteins and results in extensive damage in the central nervous system in the form of focal lesions as well as diffuse molecular changes. Lesions are currently detected using T1-weighted, T2-weighted, and gadolinium-enhanced magnetic resonance imaging (MRI); however, monitoring such lesions has been shown to be a poor predictor of disease progression. Chemical exchange saturation transfer...
Source: NeuroImage - Category: Neuroscience Source Type: research
This study examines the association between physical activity and screen time with white matter microstructure in the general pediatric population. In a sample of 2,532 children (10.12 ± 0.58 years; 50.04% boys) from the Generation R Study, a population-based cohort in Rotterdam, the Netherlands, we assessed physical activity and screen time using parent-reported questionnaires. Magnetic resonance imaging of white matter microstructure was conducted using diffusion tensor imaging. Total physical activity was positively associated with global fractional anisotropy (β = 0.057, 95% CI = 0.016, 0.098, p...
Source: NeuroImage - Category: Neuroscience Source Type: research
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