 Methods: For these purpose, we will enroll a total of 30 patients with stable angina who are scheduled for percutaneous coronary intervention. Those patients were randomized to thin-strut 81μm 2-link Promus element PE: n10, thin-strut 81μm 3-link Xience Prime XP: n10, or thick-strut 145μm 2-link Nobori stents NO: n10 and underwent OCT and coronary CT angiography CTA after stenting. Post stent WSS was calculated using CFD simulations based on patient-specific reconstructed 3D arteries created by the fusion of OCT and CTA data, normalized using WSS in the proximal unstented region. Also, follow-up angiography and OCT are performed for the assessment of vessel healing as well as WSS distribution 8months after stent implantation. 