患者教育视频：经导管主动脉瓣置入术（TAVI）

This video, created by Nucleus Medical Media, shows Transcatheter Aortic Valve Implantation (TAVI). Stenosis, or narrowing, of the aortic valve due calcification of the valve leaflets is also depicted. The animation finishes by showing a minimally invasive procedure called a transfemoral aortic valve implantation. This procedure is done to replace a calcified and stenotic aortic valve in patients not able to have open surgery.