生物可吸收支架较金属药物洗脱支架(DES)有可能减少晚期支架内血栓(ST)的发生,因不存在外源性的金属材料和血液相接触,所以不必顾虑血管内皮化延迟或不完全。此外,永久置入的金属支架会影响外科血运重建,堵塞边支血管,妨碍血管的扩张性重塑和血管舒缩反应,还将影响非介人性检查如冠脉多层CT和MRI的成像。作为金属DES Bioabsorbable stents have the potential to reduce late stent thrombosis (ST) over metal-eluting stents (DES) because there is no extrinsic metallic material in contact with the blood, so there is no need to worry about delayed or incomplete vascular endothelialization . In addition, permanently implanted metal stents can affect surgical revascularization, clog the lateral branch vessels, disrupt the vasodilative remodeling and vasomotor responses, and also impact non-invasive tests such as multi-slice CT and MRI imaging . As metal DES