Zobrazeno 1 - 10
of 1 222
pro vyhledávání: '"water fraction"'
Autor:
Jaimie J. Lee, Paulina S. Scheuren, Hanwen Liu, Ryan W. J. Loke, Cornelia Laule, Catrina M. Loucks, John L.K. Kramer
Publikováno v:
Molecular Brain, Vol 17, Iss 1, Pp 1-8 (2024)
Abstract Identifying sensitive and specific measures that can quantify myelin are instrumental in characterizing microstructural changes in neurological conditions. Neuroimaging transcriptomics is emerging as a valuable technique in this regard, offe
Externí odkaz:
https://doaj.org/article/61aa4d679774444a80b771b334c810c3
Publikováno v:
NeuroImage, Vol 297, Iss , Pp 120689- (2024)
A new MRI technique is presented for three-dimensional fast simultaneous whole brain mapping of myelin water fraction (MWF), T1, proton density (PD), R2*, magnetic susceptibility (QSM), and B1 transmit field (B1+). Phantom and human (N = 9) datasets
Externí odkaz:
https://doaj.org/article/3055f0deedd940a6845e5c2fa8d0889c
Publikováno v:
Journal of Translational Medicine, Vol 21, Iss 1, Pp 1-13 (2023)
Abstract Background Magnetic resonance fingerprinting (MRF) enables fast myelin quantification via the myelin water fraction (MWF), offering a noninvasive method to assess brain development and disease. However, MRF-derived MWF lacks histological eva
Externí odkaz:
https://doaj.org/article/3a18f2b9be694f58b8603fe82601625e
Autor:
Einat K. Brenner, Katherine J. Bangen, Alexandra L. Clark, Lisa Delano-Wood, Nicole D. Evangelista, Lauren Edwards, Scott F. Sorg, Amy J. Jak, Mark W. Bondi, Sean C. L. Deoni, Melissa Lamar
Publikováno v:
Frontiers in Aging Neuroscience, Vol 15 (2023)
BackgroundDecreasing white matter integrity in limbic pathways including the fornix and cingulum have been reported in Alzheimer’s disease (AD), although underlying mechanisms and potential sex differences remain understudied. We therefore sought t
Externí odkaz:
https://doaj.org/article/c101367adeed482aa795a42cbf7096f4
Autor:
Jinyang Du, John S. Kimball, Steven K. Chan, Mario Julian Chaubell, Rajat Bindlish, R. Scott Dunbar, Andreas Colliander
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 4871-4881 (2023)
Fractional water (FW) correction of satellite microwave brightness temperature (Tb) observations is a prerequisite for accurate soil moisture (SM) mapping over mixed land and water areas. Here, we evaluated the FW impacts on NASA Soil Moisture Active
Externí odkaz:
https://doaj.org/article/6773a9f27f9946f5a8cb650e344421a9
Autor:
Liangdong Zhou, Yi Li, Elizabeth M. Sweeney, Xiuyuan H. Wang, Amy Kuceyeski, Gloria C. Chiang, Jana Ivanidze, Yi Wang, Susan A. Gauthier, Mony J. de Leon, Thanh D. Nguyen
Publikováno v:
Frontiers in Aging Neuroscience, Vol 15 (2023)
Background and purposeOur objective was to apply multi-compartment T2 relaxometry in cognitively normal individuals aged 20–80 years to study the effect of aging on the parenchymal CSF fraction (CSFF), a potential measure of the subvoxel CSF space.
Externí odkaz:
https://doaj.org/article/0bb2151f3dfb410aad3fcac1a34e9636
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 90-98 (2022)
Oil–gas–water multiphase flows are widely used in petrochemical, biochemical, food chemical, mineral engineering and energy engineering. In this paper, the double-ring conductivity probe and the double-helical capacitance probe were extended to t
Externí odkaz:
https://doaj.org/article/d755fd95a3914eb5934917b961ff8722
Autor:
Jiayue Cai, Jowon L. Kim, Yuheng Wang, Tobias R. Baumeister, Maria Zhu, Aiping Liu, Soojin Lee, Martin J. McKeown
Publikováno v:
Frontiers in Neuroscience, Vol 17 (2023)
ObjectiveTo determine if there are sex differences in myelin in Parkinson’s disease, and whether these explain some of the previously-described sex differences in clinical presentation.MethodsThirty-three subjects (23 males, 10 females) with Parkin
Externí odkaz:
https://doaj.org/article/f9ae2313240f4a048714796a2f17c8a0
Autor:
Francisco J. Fritz, Laurin Mordhorst, Mohammad Ashtarayeh, Joao Periquito, Andreas Pohlmann, Markus Morawski, Carsten Jaeger, Thoralf Niendorf, Kerrin J. Pine, Martina F. Callaghan, Nikolaus Weiskopf, Siawoosh Mohammadi
Publikováno v:
Frontiers in Neuroscience, Vol 17 (2023)
The effective transverse relaxation rate (R2*) is sensitive to the microstructure of the human brain like the g-ratio which characterises the relative myelination of axons. However, the fibre-orientation dependence of R2* degrades its reproducibility
Externí odkaz:
https://doaj.org/article/289c3f039d3a46fe89352a8b05c4acc7
Autor:
Ricky Mwangada Mwanake, Gretchen Maria Gettel, Elizabeth Gachibu Wangari, Klaus Butterbach-Bahl, Ralf Kiese
Publikováno v:
Frontiers in Water, Vol 5 (2023)
Greenhouse gas emissions from headwater streams are linked to multiple sources influenced by terrestrial land use and hydrology, yet partitioning these sources at catchment scales remains highly unexplored. To address this gap, we sampled year-long s
Externí odkaz:
https://doaj.org/article/e20696c5719145b98f1b277d68a71b76