The Study to Compare Cypher Versus Cypher Select in Treating Cornary Artery Lesions.

Inclusion Criteria

• •1. Diagnosis of angina pectoris as defined by Canadian Cardiovascular Society Classification (CCS I, II, III, IV) OR unstable angina pectoris (Braunwald Classification B\&C, I-II-III) OR patients with documented silent ischemia;
• •2. Single treatment of de novo lesion in a coronary artery which can be appropriately covered by a study stent up to 23mm in length in patients with single or multivessel disease; patients with multiple lesions can be included only if the other lesions are successfully treated before the target lesion;
• •3. Target lesion is more than 2.5 and less than 3.5mm in diameter (visual estimate);
• •4. Target lesion is located in a native coronary artery with a maximum lesion length that can be adequately covered by a single 23 mm stent;
• •5. Target lesion stenosis is \> 50% and \< 100% (visual estimate).