ArticleMagnetic resonance in medicine2021
Cerebral oxygen extraction fraction: Comparison of dual-gas challenge calibrated BOLD with CBF and challenge-free gradient echo QSM+qBOLD.
Article in Magnetic resonance in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 25 citations in OpenAlex.
- A Generalized Approach to Solving Deep Learning-Based Quantitative Susceptibility Mapping and Quantitative Blood Oxygen Level Dependent Magnitude (QSM + qBOLD or QQ) for Oxygen Extraction Fraction (OEF) Mapping Across Diverse Acquisition Schemes.Magnetic resonance in medicine · 2026Article
- Voxel-Wise Whole-Brain Analysis in Quantitative Susceptibility Mapping: A Narrative Review.Human brain mapping · 2026Review
- Elevated cerebral oxygen extraction fraction in Parkinson's disease correlates with motor impairment severity.Scientific reports · 2026Article
- Age-related changes to brain energetics revealed by PET/MRI imaging.NeuroImage. Clinical · 2026Article
- Oxygen extraction fraction is differentially associated with pathological biomarkers in Alzheimer's disease and non-Alzheimer's dementias.Frontiers in neuroscience · 2026Article
- Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI.Experimental physiology · 2025Review
- Comparison of Brain Oxygen Metabolic Parameters Between Constrained qBOLD and Whole-Brain Oximetric Methods at Baseline and in Response to a Physiologic Stimulus.NMR in biomedicine · 2025Article
- Oxygen extraction fraction in small vessel disease: relationship to disease burden and progression.Brain : a journal of neurology · 2025Article
- Sensitivity assessment of QSM+qBOLD (or QQ) in detecting elevated oxygen extraction fraction (OEF) in physiological change.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025Article
- Neonatal and 3-month cerebrovascular oxygenation, stability, and extraction in congenital heart disease versus control infants.Journal of clinical and translational science · 2025Article
- Reduced oxygen extraction fraction in deep cerebral veins associated with cognitive impairment in multiple sclerosis.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024Article
- Validation of a new 3D quantitative BOLD based cerebral oxygen extraction mapping.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024Article
- Multi-Echo Complex Quantitative Susceptibility Mapping and Quantitative Blood Oxygen Level-Dependent Magnitude (mcQSM + qBOLD or mcQQ) for Oxygen Extraction Fraction (OEF) Mapping.Bioengineering (Basel, Switzerland) · 2024Article
- Reduced Oxygen Extraction Fraction in Deep Cerebral Veins Associated with Cognitive Impairment in Multiple Sclerosis.medRxiv : the preprint server for health sciences · 2024Article
- Breath-hold calibrated fMRI mapping of absolute cerebral metabolic rate of oxygen metabolism (CMROImaging neuroscience (Cambridge, Mass.) · 2024Article
- Article
- Cerebral oxygen metabolism from MRI susceptibility.NeuroImage · 2023Review
- Cerebral oxygen extraction fraction declines with ventricular enlargement in patients with normal pressure hydrocephalus.Clinical imaging · 2023Article
- Cerebral oxygen extraction fraction MRI: Techniques and applications.Magnetic resonance in medicine · 2022Review
- QQ-NET - using deep learning to solve quantitative susceptibility mapping and quantitative blood oxygen level dependent magnitude (QSM+qBOLD or QQ) based oxygen extraction fraction (OEF) mapping.Magnetic resonance in medicine · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
purposeTo compare cortical gray matter oxygen extraction fraction (OEF) estimated from 2 MRI methods: (1) the quantitative susceptibility mapping (QSM) plus quantitative blood oxygen level dependent imaging (qBOLD) (QSM+qBOLD or QQ), and (2) the dual-gas calibrated-BOLD (DGCB) in healthy subjects; and to investigate the validity of iso-cerebral metabolic rate of oxygen consumption assumption during hypercapnia using QQ.
methodsIn 10 healthy subjects, 3 tesla MRI including a multi-echo gradient echo sequence at baseline and hypercapnia for QQ, as well as an EPI dual-echo pseudo-continuous arterial spin labeling for DGCB, were performed under a hypercapnic and a hyperoxic condition. OEFs from QQ and DGCB were compared using region of interest analysis and paired t test. For QQ, cerebral metabolic rate of oxygen consumption = cerebral blood flow*OEF*arterial oxygen content was generated for both baseline and hypercapnia, which were compared.
resultsAverage OEF in cortical gray matter across 10 subjects from QQ versus DGCB was 35.5 ± 6.7% versus 38.0 ± 9.1% (P = .49) at baseline and 20.7 ± 4.4% versus 28.4 ± 7.6% (P = .02) in hypercapnia: OEF in cortical gray matter was significantly reduced as measured in QQ (P < .01) and in DGCB (P < .01). Cerebral metabolic rate of oxygen consumption (in μmol O
conclusionThe differences in OEF obtained from QQ and DGCB are small and nonsignificant at baseline but are statistically significant during hypercapnia. In addition, QQ shows a cerebral metabolic rate of oxygen consumption decrease (17.4%) during hypercapnia.
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