DEVELOPMENT OF MULTI FREQUENCY ELECTRICAL IMPEDANCE TOMOGRAPHY FOR RECTANGULAR GEOMETRY BY FINITE VOLUME METHODS

Authors

  • Khusnul Ain Biomedical Engineering, Airlangga University, Surabaya, Indonesia https://orcid.org/0000-0002-8315-7067
  • Deddy Kurniadi Physics Engineering, Institute of Technology Bandung, Bandung, Indonesia
  • Mokhamad Fakhrul Ulum Veteranary Clinic Reproduction and Pathology, Institute of Agriculture Bogor, Bogor, Indonesia
  • Lina Choridah Medicine, Gadjah Mada University, Yogyakarta, Indonesia
  • Utriweni Mukhayyar Statistics, Institute of Technology Bandung, Bandung, Indonesia
  • Agah D. Garnadi Mathematics and Sciences, Institute of Agriculture Bogor, Bogor, Indonesia
  • Nurhuda Hendra Setyawan Medicine, Gadjah Mada University, Yogyakarta, Indonesia
  • Bayu Ariwanto Physics, Airlangga University, Surabaya, Indoensia

DOI:

https://doi.org/10.11113/jurnalteknologi.v84.16936

Keywords:

Multi frequency, electrical impedance tomography, finite volume methods, rectangular geometry, breast cancer

Abstract

Electrical impedance tomography (EIT) is a non-invasive technique for imaging the electrical conductivity and permittivity in the body by measuring the electrical potential on the surface. One of the EIT applications in the medical field is breast cancer detection. The study proposed a rectangular geometry EIT multi-frequency device based on the Finite Volume Method (FVM) reconstruction method. This device can be used to complement mammography images into dual EIT-mammography modalities. The EIT device built of DDS AD9850 as a programmable multi-frequency sinusoidal generator, AD620 as instrument amplifier, AD536 as an AC converter, and ADS1115 as an ADC 16 bit. These devices can scan at the maximum frequency of 100 kHz. The device has been tested with a phantom of distilled water and carrots in the center and on the sides. The reconstruction methods one step different frequency produces a rectangular geometric image with anomalies in the depth and at the surface clearly.

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Published

2022-01-27

Issue

Vol. 84 No. 2: March 2022

Section

Science and Engineering

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How to Cite

DEVELOPMENT OF MULTI FREQUENCY ELECTRICAL IMPEDANCE TOMOGRAPHY FOR RECTANGULAR GEOMETRY BY FINITE VOLUME METHODS. (2022). Jurnal Teknologi, 84(2), 9-15. https://doi.org/10.11113/jurnalteknologi.v84.16936