Title :
Forward Problem Model of Human Thorax during Breath in Electrical Impedance Tomography
Author :
Zhang, Xueying ; Xu, Guizhi ; Zhang, Shuai ; Wang, Hongbin ; Xu, Yaoyuan ; Li, Ying ; Yan, Weili
Author_Institution :
Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China
Abstract :
In this paper, we built two EIT models to compare for the modeling errors caused by breathing of the body shape. An efficient nodal based calculation method of Jacobain Matrix considering both the change of resistivity and electrode placement is outlined and presented. We evaluate the approach with both a simulated example of boundary voltage and real measurement data for thorax imaging. The results have been shown to be applicable to show a variety of modeling errors.
Keywords :
Jacobian matrices; bioelectric potentials; biomedical electrodes; electric impedance imaging; electrical resistivity; image reconstruction; medical image processing; pneumodynamics; Jacobian matrix; boundary voltage; breathing; electrical impedance tomography; electrode placement; forward problem model; human thorax; image reconstruction; nodal based calculation mehtod; resistivity; thorax imaging; Conductivity; Electrodes; Impedance; Jacobian matrices; Tomography; Voltage measurement;
Conference_Titel :
Electromagnetic Field Problems and Applications (ICEF), 2012 Sixth International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-1-4673-1333-9
DOI :
10.1109/ICEF.2012.6310284
