STICH3C Cardiac Magnetic Resonance (CMR) Observational Study (STICOS)
STICOS will test the hypothesis that residual jeopardized myocardium, late gadolinium enhancement, and non-ischemic substrate after revascularization is associated with postoperative adverse cardiovascular events such as heart failure , readmission, or death. This study will look at whether certain heart tissue abnormalities seen on MRI scans can help predict serious health problems after heart procedures like stents or bypass surgery.
• Men and women ≥ 18 years old
• LVEF ≤ 40% (quantified by echo, single-photon emission computed tomography \[SPECT\], or CMR within 2 months of enrollment)
• Prognostically important CAD: either multivessel CAD (triple vessel or double vessel CAD including left anterior descendant artery (LAD), significant coronary stenosis defined as ≥ 70% based on coronary angiography, fractional flow reserve (FFR) ≤ 0.80 or instantaneous wave-free ratio (iFR) ≤ 0.89) or left main disease (+/- other CAD) for which significant stenosis defined as \> 50% based on coronary angiography, intravascular ultrasound (IVUS) minimum luminal area \[MLA\] value ≤ 6.0 mm2 (\< 4.5 mm2 Asian descent), or equivalent optical coherence tomography (OCT) measurements.
• Planned CABG or PCI within 3 months