Cortical depth‐dependent gradient‐echo and spin‐echo BOLD fMRI at 9.4 T
To examine cortical depth‐related spatial specificity and signal changes in gradient‐echo
(GE) and spin‐echo (SE) blood oxygenation level‐dependent (BOLD) fMRI signals, a well …
(GE) and spin‐echo (SE) blood oxygenation level‐dependent (BOLD) fMRI signals, a well …
Diffusion‐weighted spin‐echo fMRI at 9.4 T: microvascular/tissue contribution to BOLD signal changes
The nature of vascular contribution to blood oxygenation level dependent (BOLD) contrast
used in functional MRI (fMRI) is poorly understood. To investigate vascular contributions at …
used in functional MRI (fMRI) is poorly understood. To investigate vascular contributions at …
Quantitative differentiation between BOLD models in fMRI
FGC Hoogenraad, PJW Pouwels… - … in Medicine: An …, 2001 - Wiley Online Library
Several gradient‐echo fMRI blood oxygenation level‐dependent (BOLD) effects are
described in the literature: extravascular spin dephasing around capillaries and veins …
described in the literature: extravascular spin dephasing around capillaries and veins …
Comparison of diffusion‐weighted high‐resolution CBF and spin‐echo BOLD fMRI at 9.4 T
The quantification of blood oxygenation‐level dependent (BOLD) functional MRI (fMRI)
signals is closely related to cerebral blood flow (CBF) change; therefore, understanding the …
signals is closely related to cerebral blood flow (CBF) change; therefore, understanding the …
Quantifying the spatial resolution of the gradient echo and spin echo BOLD response at 3 Tesla
LM Parkes, JV Schwarzbach, AA Bouts… - Magnetic resonance …, 2005 - Wiley Online Library
The blood oxygen level dependent (BOLD) response, as measured with fMRI, offers good
spatial resolution compared to other non‐invasive neuroimaging methods. The use of a spin …
spatial resolution compared to other non‐invasive neuroimaging methods. The use of a spin …
Microvascular BOLD contribution at 4 and 7 T in the human brain: gradient‐echo and spin‐echo fMRI with suppression of blood effects
The BOLD signal consists of an intravascular (IV) and an extravascular (EV) component from
both small and large vessels. Their relative contributions are dependent on field strength …
both small and large vessels. Their relative contributions are dependent on field strength …
High‐resolution echo‐planar fMRI of human visual cortex at 3.0 tesla
KR Thulborn, SY Chang, GX Shen… - NMR in Biomedicine …, 1997 - Wiley Online Library
The robust detection of blood oxygenation level dependent (BOLD) contrast1, 2 that is due
to the hemodynamic response elicited by changes in neuronal activity is challenging. The …
to the hemodynamic response elicited by changes in neuronal activity is challenging. The …
Source of nonlinearity in echo‐time‐dependent BOLD fMRI
Stimulation‐induced changes in transverse relaxation rates can provide important insight
into underlying physiological changes in blood oxygenation level‐dependent (BOLD) …
into underlying physiological changes in blood oxygenation level‐dependent (BOLD) …
Spatial and temporal differentiation of fMRI BOLD response in primary visual cortex of human brain during sustained visual simulation
WEI Chen, XH Zhu, T Kato, P Andersen… - Magnetic resonance …, 1998 - Wiley Online Library
The blood oxygenation level dependent (BOLD) response during sustained visual
stimulation has been studied by several groups using fMRI with controversial conclusions …
stimulation has been studied by several groups using fMRI with controversial conclusions …
The intravascular contribution to fmri signal change: monte carlo modeling and diffusion‐weighted studies in vivo
Understanding the relationship between fMRI signal changes and activated cortex is
paramount to successful mapping of neuronal activity. To this end, the relative extravascular …
paramount to successful mapping of neuronal activity. To this end, the relative extravascular …