Computer-generated three-dimensional animation of the mitral valve
Computer-generated three-dimensional animation of the mitral valve
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DOI：
10.1016/s0022-5223(03)00959-0
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发表时间：
2004-03-01
影响因子：
6
通讯作者：
Grossi, EA
中科院分区：
文献类型：
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作者：
Dayan, JH;Oliker, A;Grossi, EA
目的：三维运动捕捉数据提供了二尖瓣在病理状态下功能的力学差异。虽然这种技术是精确的，但产生的时变数据集可能难以解释和可视化。我们使用了一种新技术将这些三维羊数值分析转化为二尖瓣装置的动画人体模型，该模型可以变形为各种病理状态。方法：在体内，在正常和病理条件下，对标记的羊二尖瓣器官进行高速，双翼电影透视图像分析。这些研究产生了一系列的三维坐标。利用商业动画和定制软件，构建了二尖瓣环、小叶和瓣下器官的三维动画模型。运动数据被叠加到人类心脏的详细模型上，从而产生动态重建。结果：数值运动捕捉数据成功转化为二尖瓣的三维动画模型。通过消除邻近解剖，可以分离出感兴趣的结构。可以从任何角度观察二尖瓣复合体的正常和病理生理动态。结论：该技术提供了简单易懂的二尖瓣复杂时变运动的可视化。这项技术创造了一个有价值的研究和教学工具。二尖瓣功能障碍的概念和修复原则。
Objective: Three-dimensional motion-capture data offer insight into the mechanical differences of mitral valve function in pathologic states. Although this technique is precise, the resulting time-varying data sets can be both difficult to interpret and visualize. We used a new technique to transform these 3-dimensional ovine numeric analyses into an animated human model of the mitral apparatus that can be deformed into various pathologic states.Methods: In vivo, high-speed, biplane cinefluoroscopic images of tagged ovine mitral apparatus were previously analyzed under normal and pathologic conditions. These studies produced serial 3-dimensional coordinates. By using commercial animation and custom software, animated 3-dimensional models were constructed of the mitral annulus, leaflets, and subvalvular apparatus. The motion data were overlaid onto a detailed model of the human heart, resulting in a dynamic reconstruction.Results: Numeric motion-capture data were successfully converted into animated 3-dimensional models of the mitral valve. Structures of interest can be isolated by eliminating adjacent anatomy. The normal and pathophysiologic dynamics of the mitral valve complex can be viewed from any perspective.Conclusion: This technique provides easy and understandable visualization of the complex and time-varying motion of the mitral apparatus. This technology creates a valuable research and teaching tool for. the conceptualization of mitral valve dysfunction and the principles of repair.