Conservative Versus Aggressive Revascularization in Patients With Intermediate Lesions Undergoing Percutaneous Coronary Intervention With Angiography Guidance Alone

Inclusion Criteria: * Intermediate coronary lesion(s) (diameter stenosis between 50% and 70% by quantitative coronary analysis) * Target lesion(s) must be located in a native coronary artery with diameter of ≥2.25 mm and ≤4.25 mm Exclusion Criteria: * cardiogenic shock * myocardial infarction (MI) within 48 hours * left main lesion * drug-eluting stent implantation in the target vessel prior to enrollment * ≥2 chronic total occlusions in major coronary territories * history of bleeding diathesis or known coagulopathy * gastrointestinal or genitourinary bleeding within 3 months or major surgery within 2 months * platelet count \<100,000 cells/mm3 * planned elective surgical procedure that would necessitate interruption of thienopyridine during the first 6 months after enrollment * non-cardiac co-morbid conditions with life expectancy \<1 year or that may result in protocol non-compliance (per site investigator's medical judgment).