Changes in T1 and T2 observed in brain magnetic resonance imaging with delivery of high concentrations of oxygen
H Uematsu, M Takahashi, H Hatabu… - Journal of computer …, 2007 - journals.lww.com
Objective: The aim of this study was to clarify the relative contributions of the amount of
oxygen in the blood, and vasoconstriction/dilation responsible for changes in T1 and T2 …
oxygen in the blood, and vasoconstriction/dilation responsible for changes in T1 and T2 …
Characterization of regional heterogeneity in cerebrovascular reactivity dynamics using novel hypocapnia task and BOLD fMRI
We offer a new method for characterizing the magnitude and dynamics of the vascular
response to changes in arterial gas tensions using non-invasive blood oxygenation level …
response to changes in arterial gas tensions using non-invasive blood oxygenation level …
Cerebrovascular reactivity by quantitative magnetic resonance angiography with a Co2 challenge. Validation as a new imaging biomarker
L Caputi, F Ghielmetti, G Faragò, F Longaretti… - European Journal of …, 2014 - Elsevier
Assessment of cerebrovascular reactivity (CVR) is essential in cerebrovascular diseases, as
exhausted CVR may enhance the risk of cerebral ischemic events. Transcranial Doppler …
exhausted CVR may enhance the risk of cerebral ischemic events. Transcranial Doppler …
CVR-MRICloud: An online processing tool for CO2-inhalation and resting-state cerebrovascular reactivity (CVR) MRI data
Cerebrovascular Reactivity (CVR) provides an assessment of the brain's vascular reserve
and has been postulated to be a sensitive marker in cerebrovascular diseases. MRI-based …
and has been postulated to be a sensitive marker in cerebrovascular diseases. MRI-based …
[HTML][HTML] A practical modification to a resting state fMRI protocol for improved characterization of cerebrovascular function
Cerebrovascular reactivity (CVR), defined here as the Blood Oxygenation Level Dependent
(BOLD) response to a CO 2 pressure change, is a useful metric of cerebrovascular function …
(BOLD) response to a CO 2 pressure change, is a useful metric of cerebrovascular function …
Regional quantification of cerebral venous oxygenation from MRI susceptibility during hypercapnia
There is an unmet medical need for noninvasive imaging of regional brain oxygenation to
manage stroke, tumor, and neurodegenerative diseases. Oxygenation imaging from …
manage stroke, tumor, and neurodegenerative diseases. Oxygenation imaging from …
[HTML][HTML] Suppl 1: The Relationship Between M in “Calibrated fMRI” and the Physiologic Modulators of fMRI
The “calibrated fMRI” technique requires a hypercapnia calibration experiment in order to
estimate the factor “M”. It is desirable to be able to obtain the M value without the need of a …
estimate the factor “M”. It is desirable to be able to obtain the M value without the need of a …
Cerebral OEF quantification: A comparison study between quantitative susceptibility mapping and dual‐gas calibrated BOLD imaging
Purpose To compare regional oxygen extraction fraction (OEF) and cerebral metabolic rate
of oxygen consumption (CMRO2) quantified from the microvascular quantitative …
of oxygen consumption (CMRO2) quantified from the microvascular quantitative …
Dynamics of changes in blood flow, volume, and oxygenation: implications for dynamic functional magnetic resonance imaging calibration
Changes in cerebral blood flow (CBF), volume (CBV), and oxygenation (blood-oxygenation
level dependent (BOLD)) during functional activation are important for calculating changes …
level dependent (BOLD)) during functional activation are important for calculating changes …
Rapid MR imaging of a vascular challenge to focal ischemia in cat brain
AJ De Crespigny, MF Wendland… - Journal of Magnetic …, 1993 - Wiley Online Library
Deoxygenated blood was effectively used as a magnetic resonance (MR) susceptibility
contrast agent to distinguish perfused and nonperfused (ischemic) regions in a focal …
contrast agent to distinguish perfused and nonperfused (ischemic) regions in a focal …