Visually assessed ischemia on cardiac magnetic resonance, but not quantitative perfusion metrics, predicts symptomatic improvement in coronary artery bypass.

ABSTRACT:

Background

Serial perfusion cardiovascular magnetic resonance (CMR) in symptomatic patients undergoing coronary artery bypass grafting (CABG) may provide mechanistic insight into dynamic abnormalities of the myocardium.

Objectives

To assess how changes in cardiac reperfusion and remodeling associate with symptom improvement in patients undergoing CABG METHODS: Patients awaiting elective CABG completed serial quality of life questionnaires and detailed CMR at baseline and at 6-12 months post-CABG as per protocol. Automated fully quantitative stress and rest myocardial blood flow was calculated, alongside assessment of the visual ischemic burden. Findings were correlated with changes in symptomatology.

Results

Of 40 patients who underwent serial evaluation with CMR (mea

SUBMITTER: Akbari T 

PROVIDER: S-EPMC12730852 | biostudies-literature | 2025 Winter

REPOSITORIES: biostudies-literature