关键词: 手术仿真 心脏介入 心跳模拟 弹簧振子模型

Abstract:

In this paper,we propose a real-time approach to heartbeat modeling. Firstly, the deformable model of the human heart is established using a hybrid mass-spring model, according to the anatomical structure of the human heart. Then we model the contraction and expansion of atriums and ventricles based o n the basic rule of heartbeat motion. Finally,we integrate the motion of atriums and ventricles into the whole model to get the beating effect of the ou ter surface of the heart model. Furthermore,we implement the motion of coronary artery. Experimental results show that our modeling approach is simple a nd effective,and it can provide a visually plausible heartbeat effect in a real-time way.

Key words: surgery simulation, interventional cardiology, heartbeat modeling, mass-spring model