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 …
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 …
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 …
Experimental measurement of extravascular parenchymal BOLD effects and tissue oxygen extraction fractions using multi‐echo VASO fMRI at 1.5 and 3.0 T
H Lu, PCM Van Zijl - … in Medicine: An Official Journal of the …, 2005 - Wiley Online Library
Quantitative interpretation of BOLD fMRI signal changes has predominantly employed
empirical models for the whole parenchyma and a calibration step is usually needed to …
empirical models for the whole parenchyma and a calibration step is usually needed to …
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 …
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 intra‐and extravascular contributions to spin‐echo fMRI at 3 T
TH Jochimsen, DG Norris, T Mildner… - … in Medicine: An …, 2004 - Wiley Online Library
Functional MRI (fMRI) by means of spin‐echo (SE) techniques provides an interesting
alternative to gradient‐echo methods because the contrast is based primarily on dynamic …
alternative to gradient‐echo methods because the contrast is based primarily on dynamic …
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 …
Evidence for a vascular contribution to diffusion FMRI at high b value
Recent work has suggested that diffusion-weighted functional magnetic resonance imaging
(FMRI) with strong diffusion weighting (high b value) detects neuronal swelling that is …
(FMRI) with strong diffusion weighting (high b value) detects neuronal swelling that is …
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 …