[Three-dimensional reconstruction and dynamic analysis of mitral annular based on real-time three-dimensional...

Non-planar saddle-shaped structure of mitral annulus is of significance to the diagnosis of mitral regurgitation. Based on real-time three-dimensional echocardiography images, a reconstruction and dynamic analysis method of mitral annulus was proposed in this paper. First, the boundary points of the mitral annulus are extracted by interactive method and are arranged according to their positions. Then, based on non-uniform rational b-splines model, the three-dimensional mitral annulus visualization model is established and the dynamic analysis method is developed and programmed. Results show that the reconstruction and analysis method proposed in this paper can quickly, efficiently and robustly get the motion of mitral annulus.