中国物理B ›› 2009, Vol. 18 ›› Issue (12): 5566-5574.doi: 10.1088/1674-1056/18/12/072
陆宏1, 唐雪正1, 华宁1, 唐发宽1, 王倩2, 马平2
Wang Qian(王倩)a),Ma Ping(马平) a)†,Lu Hong(陆宏)b), Tang Xue-Zheng(唐雪正)b),Hua Ning(华宁) b), and Tang Fa-Kuan(唐发宽)b)‡
摘要: Two cardiac functional models are constructed in this paper. One is a single current model and the other is a current multipole model. Parameters denoting the properties of these two models are calculated by a least-square fit to the measurements using a simulated annealing algorithm. The measured signals are detected at 36 observation nodes by a superconducting quantum interference device (SQUID). By studying the trends of position, orientation and magnitude of the single current dipole model and the current multipole model in the QRS complex during one time span and comparing the reconstructed magnetocardiography (MCG) of these two cardiac models, we find that the current multipole model is a more appropriate model to represent cardiac electrophysiological activity.
中图分类号: (Biological signal processing)