RestoratIon of Myocardial Function by PeRcutaneous cOronary interVEntion in Patients With Ischemic CardioMyoPathy

Inclusion Criteria: * Subject must be ≥ 19 years * Subject is able to verbally confirm understandings of risks, benefits and treatment alternatives of receiving invasive physiologic or imaging evaluation and PCI and he/she or his/her legally authorized representative provides written informed consent prior to any study related procedure. * Subject with LV ejection fraction \<40% from cardiac MRI * Subject with multivessel disease in major epicardial coronary artery disease or their major branches (vessel size of 2.5 mm or more than 2.5mm) considering coronary revascularization Exclusion Criteria: * Subjects with more than 50% transmural extent of infarction on GE-MRI in more than 25% of the dysfunctional myocardial segments * Subject with suspicious of other cardiomyopathy (dilated cardiomyopathy, hypertrophic cardiomyopathy etc.) * Subject with recent myocardial infarction within 4 weeks * Subject with recent fatal arrhythmia (VT or VF) within 4 weeks * Subject with hemodynamically unstable state * Subject with complex coronary artery lesions, such as chronic total occlusions, in which complete revascularization is considered unfeasible * Subject for whom coronary artery bypass surgery is prioritized over coronary artery intervention * Subject with severe valvular heart disease requiring open heart surgery * Subject with history of coronary artery bypass surgery or valve surgery * Subject with expected life expectancy of less than 1 year * Subject considered ineligible for this study based on the investigator's discretion