Magnetic resonance imaging metrics of oxygen extraction fraction: Contradictions or insight into pathophysiological mechanisms?
Sign Up to like & getrecommendations! Published in 2022 at "American Journal of Hematology"
DOI: 10.1002/ajh.26567
Abstract: , report cerebral oxygen extraction fraction (OEF) measurements using an Asymmetric Spin Echo Magnetic Resonance Imaging (ASE-MRI) technique for a large cohort ( N = 120) of children including healthy controls (34), anemic controls without… read more here.
Keywords: magnetic resonance; extraction fraction; resonance imaging; oxygen extraction ... See more keywords
Brain Tumor Characterization Using Multiple MR Parameters From Multi‐Contrast EPI With Keyhole (GE‐SE EPIK) Including Oxygen Extraction Fraction: A Comparison to O‐(2‐[18F]Fluoroethyl)‐L‐Tyrosine (FET) Positron Emission Tomography
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Magnetic Resonance Imaging"
DOI: 10.1002/jmri.29795
Abstract: Tumor characterization and treatment efficacy are associated with tissue hypoxia. MR‐derived oxygen extraction fraction (OEF) may offer valuable tumor insights but depends on multiple measurement parameters, often requiring multiple sequence acquisitions. Specific multi‐parametric sequences offer… read more here.
Keywords: oxygen extraction; tumor; extraction fraction; tumor characterization ... See more keywords
Functional oxygen extraction fraction (OEF) imaging with turbo gradient spin echo QUIXOTIC (Turbo QUIXOTIC)
Sign Up to like & getrecommendations! Published in 2018 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.26947
Abstract: QUantitative Imaging of eXtraction of Oxygen and TIssue Consumption (QUIXOTIC) is a recent technique that measures voxel‐wise oxygen extraction fraction (OEF) but suffers from long scan times, limiting its application. We implemented multiecho QUIXOTIC dubbed… read more here.
Keywords: oxygen; extraction; oxygen extraction; fraction oef ... See more keywords
Validation of T2‐based oxygen extraction fraction measurement with 15O positron emission tomography
Sign Up to like & getrecommendations! Published in 2020 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.28410
Abstract: To evaluate the accuracy of T2‐based whole‐brain oxygen extraction fraction (OEF) estimation by comparing it with gold standard 15O‐PET measurements. read more here.
Keywords: validation based; oxygen extraction; extraction fraction;
Temporal clustering, tissue composition, and total variation for mapping oxygen extraction fraction using QSM and quantitative BOLD
Sign Up to like & getrecommendations! Published in 2021 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.28875
Abstract: To improve the accuracy of quantitative susceptibility mapping plus quantitative blood oxygen level‐dependent magnitude (QSM+qBOLD or QQ) based mapping of oxygen extraction fraction (OEF) and cerebral metabolic rate of oxygen (CMRO2) using temporal clustering, tissue… read more here.
Keywords: oxygen; oxygen extraction; temporal clustering; mapping oxygen ... See more keywords
Model‐based self‐supervised learning for quantitative assessment of myocardial oxygen extraction fraction and myocardial blood volume
Sign Up to like & getrecommendations! Published in 2025 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.30555
Abstract: To develop a model‐driven, self‐supervised deep learning network for end‐to‐end simultaneous mapping of myocardial oxygen extraction fraction (mOEF) and myocardial blood volume (MBV). read more here.
Keywords: self supervised; myocardial blood; blood volume; myocardial oxygen ... See more keywords
Review of techniques for In-Situ oxygen extraction on the moon
Sign Up to like & getrecommendations! Published in 2020 at "Planetary and Space Science"
DOI: 10.1016/j.pss.2019.104753
Abstract: Abstract Resources intrinsic to the lunar environment, the abundant and oxide rich surface regolith and local water ice reserves, can be processed in order to liberate O 2 and H 2 gases for downstream applications… read more here.
Keywords: extraction; techniques situ; situ oxygen; oxygen extraction ... See more keywords
Elevated brain oxygen extraction fraction in preterm newborns with anemia measured using noninvasive MRI
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Perinatology"
DOI: 10.1038/s41372-018-0229-1
Abstract: ObjectiveTo test the hypothesis that cerebral oxygen extraction fraction (OEF) is elevated and inversely related to hematocrit level in anemic former very-low-birth-weight infants near term.Study designProspective study of non-sedated preterm infants (post-menstrual age = 36 ± 2 weeks) over… read more here.
Keywords: extraction fraction; oxygen extraction; mri;
The Oxygen Saturation in the Retinal Vessels of Patients with Diabetes Mellitus - The Search for Determinants.
Sign Up to like & getrecommendations! Published in 2021 at "Klinische Monatsblatter fur Augenheilkunde"
DOI: 10.1055/a-1384-0737
Abstract: INTRODUCTION Oxygen saturation in retinal vessels can be non-invasively measured by a new method. It is known that oxygen extraction is lowered in diabetic retinopathy. In the cross-sectional study presented here, it has been investigated… read more here.
Keywords: oxygen extraction; oxygen saturation; saturation retinal; retinal vessels ... See more keywords
Quantification of normal cerebral oxygen extraction and oxygen metabolism by phase‐based MRI susceptometry: evaluation of repeatability using two different imaging protocols
Sign Up to like & getrecommendations! Published in 2017 at "Clinical Physiology and Functional Imaging"
DOI: 10.1111/cpf.12288
Abstract: Global oxygen extraction fraction (OEF) and cerebral metabolic rate of oxygen (CMRO2) were quantified in a test–retest study. Cerebral blood flow (CBF) data, required for CMRO2 estimation, were obtained using dynamic susceptibility contrast MRI (DSC‐MRI).… read more here.
Keywords: oxygen; phase; oxygen extraction; mri ... See more keywords
Oxygen extraction–guided transfusion strategy in critically ill patients: study protocol for a randomised, open-labelled, controlled trial
Sign Up to like & getrecommendations! Published in 2024 at "BMJ Open"
DOI: 10.1136/bmjopen-2024-089910
Abstract: Introduction In critically ill patients, individualised strategies for red blood cell transfusion (RBCT) are lacking. The objective of this study is to demonstrate the potential advantages of employing an individualised transfusion strategy compared with a… read more here.
Keywords: transfusion strategy; trial; ill patients; oxygen extraction ... See more keywords