YUKON Choice Versus TAXUS Liberté in Diabetes Mellitus

Inclusion Criteria: * age \> 18 years * diabetes mellitus * symptoms (stable or unstable angina pectoris) or objective evidence of myocardial ischemia * one or more de novo lesions in 1, 2 or 3 native coronary arteries * clinically significant diameter of stenosis (50-99 % according to visual assessment of operator) * lesion must be covered by stent length of no more than 24 mm and stent diameter of no more than 3,5 mm * vessel diameter of no more than 4 mm in vessel area adjacent to stenosis * informed consent Exclusion Criteria: * unprotected left main disease * complete occlusion of target vessel * in-stent-restenosis * stenoses of bypass grafts * indication for bypass surgery * bifurcation lesions (side branch \> 2,0 mm) * thrombus in target lesion as visualized by angiography * allergy or contraindication to concomitant medication (clopidogrel, aspirin, heparin, contrast media) * acute myocardial infarction within preceding 48h * participation in another trial * pregnancy * severe disorder of coagulation or platelet function