ArticleLupus science & medicine2025
Evaluation of MRI-based brain oxygen extraction fraction mapping in patients with systemic lupus erythematosus.
Article in Lupus science & medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- 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
- Endothelial Dysfunction: Insights into Systemic Lupus Erythematosus-associated Cardiovascular Disease and Neuropsychiatric Manifestations.Journal of cardiovascular translational research · 2026Review
- Oxygen extraction fraction is differentially associated with pathological biomarkers in Alzheimer's disease and non-Alzheimer's dementias.Frontiers in neuroscience · 2026Article
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Authors and funding
10 authors.
Funding
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Abstract
objectiveWe aim to assess the cerebral oxygen extraction fraction (OEF) changes in patients with systemic lupus erythematosus (SLE) and neuropsychiatric SLE (NPSLE) by using an MRI-based technique and examine the relationship between OEF and cognition.
methods43 SLE patients (18 NPSLE and 25 non-NPSLE) and 26 healthy controls (HC) were recruited. Cognitive function was assessed via the Montreal Cognitive Assessment (MoCA). OEF was calculated by quantitative susceptibility mapping plus quantitative blood oxygen level-dependent model (QQ). Whole-brain voxel-wise analysis of OEF was performed. In subcortical grey matter structures, regional OEF values were measured, and their relationship with MoCA scores was explored.
resultsWhole-brain voxel-wise analysis revealed significant changes of OEF primarily in the limbic system, including the orbitofrontal cortex and bilateral insular lobes, among HC, non-NPSLE and NPSLE groups. Regional analysis indicated reduced OEF values in subregions of the amygdala, hippocampus and caudate nucleus in non-NPSLE compared with HC, with decreasing trends observed in all selected regions of subcortical grey matter structures. In the right hippocampus, OEF values were increased in NPSLE patients compared with non-NPSLE patients. Considering all subjects in the study, OEF values in the bilateral medial amygdalae, right lateral amygdala, left rostral hippocampus and right dorsal caudate nucleus were positively correlated with MoCA scores.
conclusionCerebral OEF mapping in patients with SLE is readily available using the MRI-based QQ method, which has the potential to serve as an adjunctive tool for diagnosing NPSLE and monitoring cognitive impairment in SLE.
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