回声
超声波
二尖瓣
方向(向量空间)
心脏瓣膜
输送系统
心包
医学
生物医学工程
内科学
放射科
数学
几何学
作者
Zhiling Luo,Heng Zhang,Xiangbin Pan,Yi Sun,Muzi Li,Nan Fang,Shouzheng Wang,Shengshou Hu,Xiangbin Pan
标识
DOI:10.1016/j.jcin.2020.02.032
摘要
The MitraFix valve (MitrAssist Lifesciences, Shanghai, China) consists of a D-shaped nitinol frame and 3 bovine pericardium leaflets ([Figures 1A and 1B][1]). The 30-F transapical delivery system has 2 built-in echogenic markers for height and D-shape orientation, which facilitate implanting the
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