Modeling of electrical impedance tomography to detect breast cancer by finite volume methods

International Conference on Physical Instrumentation and Advanced Materials

物理学;材料科学

Ain, K.^1 ; Wibowo, R.A.^2 ; Soelistiono, S.^1

Biomedical Engineering - Airlangga University, Surabaya, Indonesia^1

Physics - Airlangga University, Surabaya, Indonesia^2

关键词: Breast tissues;    Channel electrodes;    Electric potential fields;    Electrical impedance;    Electrical impedance tomography;    Forward problem;    Linear reconstruction;    Surface positions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/853/1/012001/pdf
DOI  :  10.1088/1742-6596/853/1/012001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The properties of the electrical impedance of tissue are an interesting study, because changes of the electrical impedance of organs are related to physiological and pathological. Both physiological and pathological properties are strongly associated with disease information. Several experiments shown that the breast cancer has a lower impedance than the normal breast tissue. Thus, the imaging based on impedance can be used as an alternative equipment to detect the breast cancer. This research carries out by modelling of Electrical Impedance Tomography to detect the breast cancer by finite volume methods. The research includes development of a mathematical model of the electric potential field by 2D Finite Volume Method, solving the forward problem and inverse problem by linear reconstruction method. The scanning is done by 16 channel electrode with neighbors method to collect data. The scanning is performed at a frequency of 10 kHz and 100 kHz with three objects numeric includes an anomaly at the surface, an anomaly at the depth and an anomaly at the surface and at depth. The simulation has been successfully to reconstruct image of functional anomalies of the breast cancer at the surface position, the depth position or a combination of surface and the depth.