Cerebral oxygen extraction fraction (OEF): Comparison of challenge-free gradient echo QSM+qBOLD (QQ) with 15O PET in healthy adults
We aimed to validate oxygen extraction fraction (OEF) estimations by quantitative
susceptibility mapping plus quantitative blood oxygen-level dependence (QSM+ qBOLD, or …
susceptibility mapping plus quantitative blood oxygen-level dependence (QSM+ qBOLD, or …
Age‐related changes in brain hemodynamics; A calibrated MRI study
Introduction Blood oxygenation‐level dependent (BOLD) magnetic resonance imaging
signal changes in response to stimuli have been used to evaluate age‐related changes in …
signal changes in response to stimuli have been used to evaluate age‐related changes in …
Cerebral metabolic rate of oxygen (CMRO2) mapping by combining quantitative susceptibility mapping (QSM) and quantitative blood oxygenation level‐dependent …
Purpose To map the cerebral metabolic rate of oxygen (CMRO2) by estimating the oxygen
extraction fraction (OEF) from gradient echo imaging (GRE) using phase and magnitude of …
extraction fraction (OEF) from gradient echo imaging (GRE) using phase and magnitude of …
Hearts and minds: linking vascular rigidity and aerobic fitness with cognitive aging
CJ Gauthier, M Lefort, S Mekary… - Neurobiology of …, 2015 - Elsevier
Human aging is accompanied by both vascular and cognitive changes. Although arteries
throughout the body are known to become stiffer with age, this vessel hardening is believed …
throughout the body are known to become stiffer with age, this vessel hardening is believed …
What have we learned from perfusion MRI in multiple sclerosis?
E Lapointe, DKB Li, AL Traboulsee… - American Journal of …, 2018 - Am Soc Neuroradiology
Using MR imaging, perfusion can be assessed either by dynamic susceptibility contrast MR
imaging or arterial spin-labeling. Alterations of cerebral perfusion have repeatedly been …
imaging or arterial spin-labeling. Alterations of cerebral perfusion have repeatedly been …
[HTML][HTML] Age differences in brain signal variability are robust to multiple vascular controls
A host of studies support that younger, better performing adults express greater moment-to-
moment blood oxygen level-dependent (BOLD) signal variability (SDBOLD) in various …
moment blood oxygen level-dependent (BOLD) signal variability (SDBOLD) in various …
Cluster analysis of time evolution (CAT) for quantitative susceptibility mapping (QSM) and quantitative blood oxygen level‐dependent magnitude (qBOLD)‐based …
Purpose To improve the accuracy of QSM plus quantitative blood oxygen level‐dependent
magnitude (QSM+ qBOLD or QQ)‐based mapping of the oxygen extraction fraction (OEF) …
magnitude (QSM+ qBOLD or QQ)‐based mapping of the oxygen extraction fraction (OEF) …
[HTML][HTML] The role of cerebrovascular-reactivity mapping in functional MRI: calibrated fMRI and resting-state fMRI
JJ Chen, CJ Gauthier - Frontiers in physiology, 2021 - frontiersin.org
Task and resting-state functional MRI (fMRI) is primarily based on the same blood-
oxygenation level-dependent (BOLD) phenomenon that MRI-based cerebrovascular …
oxygenation level-dependent (BOLD) phenomenon that MRI-based cerebrovascular …
The thermodynamics of thinking: connections between neural activity, energy metabolism and blood flow
RB Buxton - … Transactions of the Royal Society B, 2021 - royalsocietypublishing.org
Several current functional neuroimaging methods are sensitive to cerebral metabolism and
cerebral blood flow (CBF) rather than the underlying neural activity itself. Empirically, the …
cerebral blood flow (CBF) rather than the underlying neural activity itself. Empirically, the …
[HTML][HTML] Respiratory challenge MRI: practical aspects
FC Moreton, KA Dani, C Goutcher, K O'Hare… - NeuroImage: Clinical, 2016 - Elsevier
Respiratory challenge MRI is the modification of arterial oxygen (PaO 2) and/or carbon
dioxide (PaCO 2) concentration to induce a change in cerebral function or metabolism which …
dioxide (PaCO 2) concentration to induce a change in cerebral function or metabolism which …