An Electrical Heart Model Incorporating Real Geometry and Motion

Author

Appleton, Ben ; Wei, Qing ; Liu, Nianjun ; Xia, Ling ; Crozier, Stuart ; Liu, Feng ; Wilson, Stephen

Author_Institution

Sch. of ITEE, Queensland Univ., Brisbane, Qld.

fYear

2006

Firstpage

345

Lastpage

348

Abstract

This paper describes an electrical model of the ventricles incorporating real geometry and motion. Cardiac geometry and motion is obtained from segmentations of multiple-slice MRI time sequences. A static heart model developed previously is deformed to match the observed geometry using a novel shape registration algorithm. The resulting electrocardiograms and body surface potential maps are compared to a static simulation in the resting heart. These results demonstrate that introducing motion into the cardiac model modifies the ECG during the T wave at peak contraction of the ventricles

Keywords

bioelectric potentials; biomedical MRI; electrocardiography; image registration; image segmentation; image sequences; medical image processing; T wave; body surface potential maps; cardiac geometry; cardiac motion; electrical heart model; electrocardiograms; image segmentations; multiple-slice MRI time sequences; shape registration algorithm; static heart model; ventricle contraction; Australia; Bioelectric phenomena; Electric potential; Electrocardiography; Geometry; Heart; Inverse problems; Magnetic resonance imaging; Myocardium; Solid modeling; Bioelectromagnetic Source Imaging and Spatial Mapping; Image Analysis; Modeling of Bioelectrical Phenomena; Registration and Classification;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the

Conference_Location

Shanghai

Print_ISBN

0-7803-8741-4

Type

conf

DOI

10.1109/IEMBS.2005.1616415

Filename

1616415