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Here we investigated the effect of coronary artery disease (CAD) on the brain oxygen extraction fraction (OEF) using quantitative susceptibility mapping (QSM). Our results, in a pilot dataset, show that OEF was significantly higher in CAD patients than in healthy controls in the caudate nucleus. This may be the result of declining cerebrovascular health in CAD patients in this region. However, since the caudate nucleus is iron-rich, this difference may also be interpreted as iron deposition as CAD has a known neuroinflammatory effect. Future work will investigate the impact of CAD on other metabolic and vascular components of brain health.
Rezaei et al. (Wed,) studied this question.