Materials and methods: The decellularized vascular scaffolds were obtained by enzyme digestion from swine common carotid arteries and vascular smooth muscle cells (VSMC) were isolated from dog thoracic aorta.

• 材料和方法：采用酶脱细胞的方法制作猪颈总动脉脱细胞胶原支架，种植家犬胸主动脉VSMC，用改良的培养系统体外培养4W。