Forward and inverse problem for cardiac magnetic field and electric potential using two boundary element methods

doi:10.1088/1674-1056/19/12/120601

Abstract This paper discusses the forward and inverse problem for cardiac magnetic fields and electric potentials. A torso-heart model established by boundary element method (BEM) is used for studying the distributions of cardiac magnetic fields and electric potentials. Because node-to-node and triangle-to-triangle BEM can lead to discrepant field distributions, their properties and influences are compared. Then based on constructed torso-heart model and supposed current source functional model–current dipole array, the magnetic and electric imaging by optimal constrained linear inverse method are applied at the same time. Through figure and reconstructing parameter comparison, though the magnetic current dipole array imaging possesses better reconstructing effect, however node-to-node BEM and triangle-to-triangle BEM make little difference to magnetic and electric imaging.

Keywords: cardiac magnetic imaging cardiac electric imaging boundary element method torso-heart model

Received: 03 April 2010
Revised: 04 August 2010
Accepted manuscript online:

PACS:	02.30.Zz	(Inverse problems)
	87.19.Hh	(Cardiac dynamics)
	87.19.R-	(Mechanical and electrical properties of tissues and organs)
	87.57.C-	(Image quality)
	87.57.N-	(Image analysis)
	87.80.-y	(Biophysical techniques (research methods))

Fund: Project supported by the State Key Development Program for Basic Research of China (Grant No. 2006CB601007), the National Natural Science Foundation of China (Grant No. 10674006), and the National High Technology Research and Development Program of China (Grant No. 2007AA03Z238).

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Tang Fa-Kuan(唐发宽), Wang Qian(王倩), Hua Ning(华宁), Tang Xue-Zheng(唐雪正), Lu Hong(陆宏), and Ma Ping(马平) Forward and inverse problem for cardiac magnetic field and electric potential using two boundary element methods 2010 Chin. Phys. B 19 120601

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Forward and inverse problem for cardiac magnetic field and electric potential using two boundary element methods

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