Low frequency systemic hemodynamic “noise” in resting state BOLD fMRI: characteristics, causes, implications, mitigation strategies, and applications
Advances in functional magnetic resonance imaging (fMRI) acquisition have improved
signal to noise to the point where the physiology of the subject is the dominant noise source …
signal to noise to the point where the physiology of the subject is the dominant noise source …
Resting‐State fMRI: Emerging Concepts for Future Clinical Application
S Amemiya, H Takao, O Abe - Journal of Magnetic Resonance …, 2024 - Wiley Online Library
Resting‐state functional magnetic resonance imaging (rsfMRI) has been developed as a
method of investigating spontaneous neural activity. Based on its low‐frequency signal …
method of investigating spontaneous neural activity. Based on its low‐frequency signal …
[HTML][HTML] Evaluation of 2D multiband EPI imaging for high-resolution, whole-brain, task-based fMRI studies at 3T: Sensitivity and slice leakage artifacts
Functional magnetic resonance imaging (fMRI) studies that require high-resolution whole-
brain coverage have long scan times that are primarily driven by the large number of thin …
brain coverage have long scan times that are primarily driven by the large number of thin …
Cerebrovascular reactivity mapping without gas challenges
Cerebrovascular reactivity (CVR), the ability of cerebral vessels to dilate or constrict, has
been shown to provide valuable information in the diagnosis and treatment evaluation of …
been shown to provide valuable information in the diagnosis and treatment evaluation of …
[HTML][HTML] Vascular physiology drives functional brain networks
MG Bright, JR Whittaker, ID Driver, K Murphy - NeuroImage, 2020 - Elsevier
We present the first evidence for vascular regulation driving fMRI signals in specific
functional brain networks. Using concurrent neuronal and vascular stimuli, we collected 30 …
functional brain networks. Using concurrent neuronal and vascular stimuli, we collected 30 …
[HTML][HTML] Comparing end-tidal CO2, respiration volume per time (RVT), and average gray matter signal for mapping cerebrovascular reactivity amplitude and delay with …
Cerebrovascular reactivity (CVR), defined as the cerebral blood flow response to a
vasoactive stimulus, is an imaging biomarker with demonstrated utility in a range of diseases …
vasoactive stimulus, is an imaging biomarker with demonstrated utility in a range of diseases …
Correcting for blood arrival time in global mean regression enhances functional connectivity analysis of resting state fMRI-BOLD signals
Resting state functional connectivity analysis is a widely used method for mapping intrinsic
functional organization of the brain. Global signal regression (GSR) is commonly employed …
functional organization of the brain. Global signal regression (GSR) is commonly employed …
Perfusion information extracted from resting state functional magnetic resonance imaging
It is widely known that blood oxygenation level dependent (BOLD) contrast in functional
magnetic resonance imaging (fMRI) is an indirect measure for neuronal activations through …
magnetic resonance imaging (fMRI) is an indirect measure for neuronal activations through …
The resting-state fMRI arterial signal predicts differential blood transit time through the brain
Previous studies have found that aperiodic, systemic low-frequency oscillations (sLFOs) are
present in blood-oxygen-level-dependent (BOLD) data. These signals are in the same low …
present in blood-oxygen-level-dependent (BOLD) data. These signals are in the same low …
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 …