Zobrazeno 1 - 10 of 217 pro vyhledávání: '"Vascular space occupancy"'
1
Akademický článek
Comparing BOLD and VASO-CBV population receptive field estimates in human visual cortex
Autor: Ícaro A.F. Oliveira, Yuxuan Cai, Shir Hofstetter, Jeroen C.W. Siero, Wietske van der Zwaag, Serge O. Dumoulin
Publikováno v: NeuroImage, Vol 248, Iss , Pp 118868- (2022)
Vascular Space Occupancy (VASO) is an alternative fMRI approach based on changes in Cerebral Blood Volume (CBV). VASO-CBV fMRI can provide higher spatial specificity than the blood oxygenation level-dependent (BOLD) method because the CBV response is
Externí odkaz: https://doaj.org/article/e7908ecd7b744131b154f5c78861528a
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2
Akademický článek
Comparing hand movement rate dependence of cerebral blood volume and BOLD responses at 7T
Autor: Ícaro A.F. de Oliveira, Wietske van der Zwaag, Luisa Raimondo, Serge O. Dumoulin, Jeroen C.W. Siero
Publikováno v: NeuroImage, Vol 226, Iss , Pp 117623- (2021)
Functional magnetic resonance imaging (fMRI) based on the Blood Oxygenation Level Dependent (BOLD) contrast takes advantage of the coupling between neuronal activity and the hemodynamics to allow a non-invasive localisation of the neuronal activity.
Externí odkaz: https://doaj.org/article/162a0a3c0a924eac849f6e90919b4815
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3
Akademický článek
Integrated VASO and perfusion contrast: A new tool for laminar functional MRI
Autor: Yuhui Chai, Linqing Li, Larentius Huber, Benedikt A. Poser, Peter A. Bandettini
Publikováno v: NeuroImage, Vol 207, Iss , Pp 116358- (2020)
Earlier research in cats has shown that both cerebral blood volume (CBV) and cerebral blood flow (CBF) can be used to identify layer-dependent fMRI activation with spatial specificity superior to gradient-echo blood-oxygen-level-dependent (BOLD) cont
Externí odkaz: https://doaj.org/article/942a1ca5a6d44eb7b9a7efe71cd67022
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4
Improved Selectivity in 7 T Digit Mapping Using VASO-CBV
Autor: Wietske Van der Zwaag, Jeroen Siero, Icaro Agenor Ferreira de Oliveira, Serge Dumoulin
Publikováno v: de Oliveira, Í A F, Siero, J C W, Dumoulin, S O & van der Zwaag, W 2023, ' Improved Selectivity in 7 T Digit Mapping Using VASO-CBV ', Brain Topography, vol. 36, no. 1, pp. 23-31 . https://doi.org/10.1007/s10548-022-00932-x
Brain Topography, 36(1), 23-31. Kluwer Academic/Human Sciences Press Inc.
Brain Topography, 36, 23-31. Kluwer Academic/Human Sciences Press Inc.
Functional magnetic resonance imaging (fMRI) at Ultra-high field (UHF, ≥ 7 T) benefits from significant gains in the BOLD contrast-to-noise ratio (CNR) and temporal signal-to-noise ratio (tSNR) compared to conventional field strengths (3 T). Althou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0cb438721adac84034f7111a0e540b7
https://hdl.handle.net/1871.1/a481b206-e02f-420c-95fc-ade335331206
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5
Comparison of BOLD and CBV using 3D EPI and 3D GRASE for cortical layer functional MRI at 7 T
Autor: Tetiana Dadakova, Alexander Beckett, Suhyung Park, Jennifer Townsend, Laurentius Huber, David A. Feinberg
Publikováno v: Magn Reson Med
Magnetic Resonance in Medicine, 84(6), 3128-3145. Wiley
Purpose: Functional MRI (fMRI) at the mesoscale of cortical layers and columns requires both sensitivity and specificity, the latter of which can be compromised if the imaging method is affected by vascular artifacts, particularly cortical draining v
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42e93f08723663a486ab0965a52676a7
https://doi.org/10.1002/mrm.28347
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6
Akademický článek
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7
Akademický článek
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8
Modeling of vascular space occupancy and BOLD functional MRI from first principles using real microvascular angiograms
Autor: Michèle Desjardins, Louis Gagnon, Élie Genois
Publikováno v: Magnetic Resonance in Medicine. 85:456-468
Purpose The vascular space occupancy (VASO) is a functional MRI technique for probing cerebral blood volume changes noninvasively, including during neuronal activation in humans. An important consideration when implementing VASO is the BOLD effect in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5331846279552e60fe25011d0fe1de90
https://doi.org/10.1002/mrm.28429
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9
Discrimination between Glioblastoma and Solitary Brain Metastasis: Comparison of Inflow-Based Vascular-Space-Occupancy and Dynamic Susceptibility Contrast MR Imaging
Autor: D. Wang, S. Liao, X. Xiao, Yuankui Wu, L. Guo, Jay J. Pillai, Jun Hua, X. Li, X. Liu, Y. Xu
Publikováno v: AJNR Am J Neuroradiol
BACKGROUND AND PURPOSE: Accurate differentiation between glioblastoma and solitary brain metastasis is of vital importance clinically. This study aimed to investigate the potential value of the inflow-based vascular-space-occupancy MR imaging techniq
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::654495b8168f50e9db8276880a793e8e
https://doi.org/10.3174/ajnr.a6466
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10
Non-Invasive Evaluation of Cerebral Microvasculature Using Pre-Clinical MRI
Publikováno v: Diagnostics. 11(6)
Alterations to the cerebral microcirculation have been recognized to play a crucial role in the development of neurodegenerative disorders. However, the exact role of the microvascular alterations in the pathophysiological mechanisms often remains po
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________83::39117337fe128d95f9fdf04cfe5b11e7
https://cris.maastrichtuniversity.nl/en/publications/5afc13ac-8568-4535-8747-6ccee3a3be84
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