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

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.

Keywords: magneto-cardiogram cardiac vector model boundary element method realistic human torso

Received: 17 January 2013
Revised: 13 May 2013
Accepted manuscript online:

PACS:	07.05.Tp	(Computer modeling and simulation)
	07.10.Cm	(Micromechanical devices and systems)
	87.85.-d	(Biomedical engineering)

Fund: 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).

Corresponding Authors: Ma Ping, Tang Fa-Kuan
E-mail: maping@pku.edu.cn; tfk616@yahoo.com.cn

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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 2013 Chin. Phys. B 22 090701

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

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