排序方式: 共有3条查询结果,搜索用时 0 毫秒
1
1.
Mateen Farrah J. Rezaei Shawheen Alakel Nicholas Gazdag Brittany Kumar Aditya Ravi Vogel Andre 《Journal of neurology》2020,267(12):3467-3475
Journal of Neurology - To report the understanding and decision-making of neuroimmunologists and their treatment of patients with multiple sclerosis (MS) during the early stages of the SARS-CoV-2... 相似文献
2.
3.
Calibrated imaging reveals altered grey matter metabolism related to white matter microstructure and symptom severity in multiple sclerosis 下载免费PDF全文
Nicholas A. Hubbard Monroe P. Turner Minhui Ouyang Lyndahl Himes Binu P. Thomas Joanna L. Hutchison Shawheen Faghihahmadabadi Scott L. Davis Jeremy F. Strain Jeffrey Spence Daniel C. Krawczyk Hao Huang Hanzhang Lu John Hart Jr. Teresa C. Frohman Elliot M. Frohman Darin T. Okuda Bart Rypma 《Human brain mapping》2017,38(11):5375-5390
Multiple sclerosis (MS) involves damage to white matter microstructures. This damage has been related to grey matter function as measured by standard, physiologically‐nonspecific neuroimaging indices (i.e., blood‐oxygen‐level dependent signal [BOLD]). Here, we used calibrated functional magnetic resonance imaging and diffusion tensor imaging to examine the extent to which specific, evoked grey matter physiological processes were associated with white matter diffusion in MS. Evoked changes in BOLD, cerebral blood flow (CBF), and oxygen metabolism (CMRO2) were measured in visual cortex. Individual differences in the diffusion tensor measure, radial diffusivity, within occipital tracts were strongly associated with MS patients’ BOLD and CMRO2. However, these relationships were in opposite directions, complicating the interpretation of the relationship between BOLD and white matter microstructural damage in MS. CMRO2 was strongly associated with individual differences in patients’ fatigue and neurological disability, suggesting that alterations to evoked oxygen metabolic processes may be taken as a marker for primary symptoms of MS. This work demonstrates the first application of calibrated and diffusion imaging together and details the first application of calibrated functional MRI in a neurological population. Results lend support for neuroenergetic hypotheses of MS pathophysiology and provide an initial demonstration of the utility of evoked oxygen metabolism signals for neurology research. Hum Brain Mapp 38:5375–5390, 2017. © 2017 Wiley Periodicals, Inc. 相似文献
1