A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method

doi:10.1088/1674-1056/22/9/090701

中国物理B ›› 2013, Vol. 22 ›› Issue (9): 90701-090701.doi: 10.1088/1674-1056/22/9/090701

A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method

张琛^{a b}, 寿国法^c, 陆宏^a, 华宁^a, 唐雪正^a, 夏灵^c, 马平^b, 唐发宽^a

a Department of Cardiology, the 309th Hospital of PLA, Beijing 100091, China;
b Applied Superconductivity Research Center of Peking University, Department of Physics, State Key Laboratory for Artificial Microstructureand Mesoscopic Physics, Peking University, Beijing 100871, China;
c Department of Biomedical Engineering, Key Laboratory for Biomedical Engineering of the Ministry of Education, Zhejiang University, Hangzhou 310027, China

收稿日期:2013-01-17 修回日期:2013-05-13 出版日期:2013-07-26 发布日期:2013-07-26
基金资助:
Project supported by the State Key Development Program for Basic Research of China (Grant No. 2011CBA00106), the National Natural Science Foundation of China (Grant Nos. 10674006, 81171421, and 61101046), and the National High Technology Research and Development Program of China (Grant No. 2007AA03Z238).

A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method

Zhang Chen (张琛)^{a b}, Shou Guo-Fa (寿国法)^c, Lu Hong (陆宏)^a, Hua Ning (华宁)^a, Tang Xue-Zheng (唐雪正)^a, Xia Ling (夏灵)^c, Ma Ping (马平)^b, Tang Fa-Kuan (唐发宽)^a

a Department of Cardiology, the 309th Hospital of PLA, Beijing 100091, China;
b Applied Superconductivity Research Center of Peking University, Department of Physics, State Key Laboratory for Artificial Microstructureand Mesoscopic Physics, Peking University, Beijing 100871, China;
c Department of Biomedical Engineering, Key Laboratory for Biomedical Engineering of the Ministry of Education, Zhejiang University, Hangzhou 310027, China

Received:2013-01-17 Revised:2013-05-13 Online:2013-07-26 Published:2013-07-26
Contact: Ma Ping, Tang Fa-Kuan E-mail:maping@pku.edu.cn; tfk616@yahoo.com.cn
Supported by:
Project supported by the State Key Development Program for Basic Research of China (Grant No. 2011CBA00106), the National Natural Science Foundation of China (Grant Nos. 10674006, 81171421, and 61101046), and the National High Technology Research and Development Program of China (Grant No. 2007AA03Z238).

摘要/Abstract

摘要： A cardiac vector model is presented and verified, and then the forward problem for cardiac magnetic fields and electric potential are discussed based on this model and the realistic human torso volume conductor model, including lungs. A torso-cardiac vector model is used for a 12-lead electrocardiographic (ECG) and magneto-cardiogram (MCG) simulation study by using the boundary element method (BEM). Also, we obtain the MCG wave picture using a compound four-channel HT_c·SQUID system in a magnetically shielded room. By comparing the simulated results and experimental results, we verify the cardiac vector model and then do a preliminary study of the forward problem of MCG and ECG. Therefore, the results show that the vector model is reasonable in cardiac electrophysiology.

关键词: magneto-cardiogram, cardiac vector model, boundary element method, realistic human torso

Abstract: A cardiac vector model is presented and verified, and then the forward problem for cardiac magnetic fields and electric potential are discussed based on this model and the realistic human torso volume conductor model, including lungs. A torso-cardiac vector model is used for a 12-lead electrocardiographic (ECG) and magneto-cardiogram (MCG) simulation study by using the boundary element method (BEM). Also, we obtain the MCG wave picture using a compound four-channel HT_c·SQUID system in a magnetically shielded room. By comparing the simulated results and experimental results, we verify the cardiac vector model and then do a preliminary study of the forward problem of MCG and ECG. Therefore, the results show that the vector model is reasonable in cardiac electrophysiology.

Key words: magneto-cardiogram, cardiac vector model, boundary element method, realistic human torso

中图分类号: (Computer modeling and simulation)

07.05.Tp

07.10.Cm (Micromechanical devices and systems) 87.85.-d (Biomedical engineering)

张琛, 寿国法, 陆宏, 华宁, 唐雪正, 夏灵, 马平, 唐发宽. A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method[J]. 中国物理B, 2013, 22(9): 90701-090701.

Zhang Chen (张琛), Shou Guo-Fa (寿国法), Lu Hong (陆宏), Hua Ning (华宁), Tang Xue-Zheng (唐雪正), Xia Ling (夏灵), Ma Ping (马平), Tang Fa-Kuan (唐发宽). A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method[J]. Chin. Phys. B, 2013, 22(9): 90701-090701.

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A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method

A new magneto-cardiogram study using a vector model with a virtual heart and the boundary element method

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