NDLI: QRS width and QT time alteration due to geometry change in modelled human cardiac magnetograms

Content Provider	IEEE Xplore Digital Library
Author	Bauer, S. dos Santos, R.W. Schmal, T.R. Nagel, E. Baer, M. Koch, H.
Copyright Year	2005
Description	Author affiliation: Phys. Tech. Bundesanstalt, Berlin (Bauer, S.)
Abstract	The influence of changing mesh geometries due to muscle contraction on computated biomagnetic fields of the human heart is investigated. To generate a detailed computer model of the ventricle and compare it to magnetocardiographic data, MCG and MRI were taken consecutively from the same proband. Two computer models were built from the MRI data at diastole and systole in order to assess the maximum deviation induced by geometry on the MCG. We could reproduce the structure of the measured MCG. The mesh geometry had a significant effect on the simulated magnetogram. QRS width differed by 15 ms and QT $_{max}$ times differed by 20 ms between the two computer-generated MCG. Consequently, models for biomagnetic heart activity should take detailed geometry change during the heart cycle into account
Starting Page	639
Ending Page	642
File Size	253950
Page Count	4
File Format	PDF
ISBN	0780393376
DOI	10.1109/CIC.2005.1588182
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-25
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solid modeling Humans Magnetic resonance imaging Heart Superconducting magnets Biological system modeling Computational modeling Computational geometry Cardiology Power system modeling
Content Type	Text
Resource Type	Article

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