Intra-stent Tissue Evaluation Within BMS and DES > 3 Years Since Implantation

Inclusion Criteria:

- Subject > 18 years of age;

- Subject, male or female, who underwent DES or BMS implantation in a native coronary
vessel more than 3 year ago;

- Subject is scheduled for a diagnostic coronary or interventional procedure;

- Subject is willing to sign the informed consent.

Exclusion Criteria:

- Subject requires emergency catheterization;

- Subject has an acute myocardial infarction defined as anginal symptoms with
ST-elevation on the EKG or creatine kinase-MB elevation >3times the upper limit of
normal;

- Angiographic evidence of ≥ 70% stenosis within the target stent (visual estimate);

- Subject presented with cardiogenic shock;

- Subject has angiographically confirmed thrombus in the target coronary artery;

- Subject has a complex lesion not amenable to the IVUS/VH catheters and/or OCT
catheters passing the stented segment;

- Subject has a contraindication to angiography/IVUS/OCT;

- Female subject is pregnant or lactating;

- Subject has life threatening comorbid conditions for which the investigator feels the
subject should not be enrolled