OCT cost is high

The primary objective is to determine whether IVUS- (vs. OCT-) guided BVS implantation is non-inferior to achieve a large in-scaffold minimal lumen area (primary endpoint) measured by OCT at 1-year follow-up.

Inclusion Criteria:

• Age 20 years or older
• Patients who have at least one epicardial coronary artery lesion with an evidence of inducible ischemia
• Willing and able to provide informed written consent
• Eligible for PCI

Exclusion Criteria:

• Patients presenting with STEMI within 2 weeks
• Bypass graft lesion
• Lesion with left main disease
• Expected length of scaffold > 40 mm
• Bifurcation lesion requiring side branch stenting
• Small vessels < 2.75 mm
• Stented lesion
• Suspected coronary spasm even after sufficient nitrate injected
• Cases in which the IVUS or OCT imaging catheter failed to cross the lesion
• Poor quality IVUS or OCT images
• Contraindication to dual anti-platelet therapy
• Chronic total occlusion
• Angiographically large-sized vessel (>3.5mm of reference lumen diameter)
• Life expectancy shorter than 2 years
• Pregnancy

This is not a publicly funded trial.