Title :
The effect of the subcutaneous fat layer on the measurement of the surface Laplacian
Author :
Johnston, Peter R. ; Kilpatrick, David
Author_Institution :
Div. of Clinical Sci., Tasmania Univ., Hobart, Tas., Australia
Abstract :
To date, most simulation studies involving measurement of the surface Laplacian have assumed that the medium containing the electrical sources is homogeneous. In this study, a layer of subcutaneous fat is included between the medium containing the sources and the surface where the surface Laplacian is measured. The effect of this layer, on the magnitude of the potential and surface Laplacian and on the accuracy with which the surface Laplacian can be measured, is considered
Keywords :
Laplace equations; bioelectric potentials; biological tissues; biomedical electrodes; electrocardiography; physiological models; ECG; concentric bipolar electrode; electrical sources; homogeneous medium; potential; simulation studies; subcutaneous fat layer; surface Laplacian; Biomedical measurements; Conductivity; Differential equations; Electrodes; Helium; Image analysis; Insulation; Laplace equations; Shape measurement; Volume measurement;
Conference_Titel :
Bioelectromagnetism, 1998. Proceedings of the 2nd International Conference on
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3867-7
DOI :
10.1109/ICBEM.1998.666376
