Introduction: Transcatheter aortic valve replacement (TAVR) can have some fatal complications during and after the operation.Until recently,pre-procedural imaging with cardiac computed tomography (CT),which is required to evaluate for TAVR,had its own imperfections.We aimed to determine whether 3D printed models can predict complications when other pre-procedural imaging techniques failed.Methods: Vascular center patients with aortic valve stenosis,who died after TAVR between June 2011 and June 2016,were enrolled in this retrospective study.The CT datasets of the patients were imported into a three dimensional (3D) construction software and then printed by flexible material.To predict complications during and after operations,we designed a release test using the non-valved stent mode that was consistent with the Edwards Sapien XT valve in size and radial support force.Result: The 3D model predicted the coronary obstruction and annular rupture in the in vitro release process,which was consistent with what happened in the actual operation.Conclusion: Three-dimensional modeling facilitates pre-operative assessment of patients receiving TAVR,with accurate simulation of intraoperative status.