A 3D reconstruction algorithm for EIT using a handheld probe for breast cancer detection.

Physiological Measurement
Tzu-Jen KaoG J Saulnier

Abstract

A 3D reconstruction algorithm for electrical impedance tomography is presented for determining the distribution of electrical properties inside the body, given electrical measurements made on the surface. A linearized reconstruction algorithm using planar electrode arrays in a handheld probe geometry developed by Mueller et al (1999 IEEE Trans. Biomed. Eng. 46 1379-86) has been refined and extended in this paper. This algorithm is based on linearizing the conductivity about a constant value. We have extended the distance below the electrodes at which a target can be imaged by using a combination of two regularization schemes and a weighted mesh. An appropriate combination of Tikhonov and NOSER regularization produces satisfactory static images of a 2 cm cube placed 2 cm below the array, and difference images of a 1 cm cube 4 cm away from the array. The weighted mesh allows use of fixed regularization parameters for all depths of the target.

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Citations

Sep 27, 2012·Biomedical Engineering Online·Mingkang ZhaoTong In Oh
May 1, 2008·PloS One·Yair GranotBoris Rubinsky
Aug 7, 2010·The Review of Scientific Instruments·Mohammad HabibiValerica Raicu
Dec 6, 2006·Computers in Biology and Medicine·E Y K NgU Rajendra Acharya
Nov 27, 2008·IEEE Transactions on Medical Imaging·Tzu-Jen KaoDaniel B Kopans
Feb 14, 2008·IEEE Transactions on Bio-medical Engineering·Luís Augusto Motta MelloEmílio Carlos Nelli Silva
Mar 1, 2012·IEEE Transactions on Bio-medical Engineering·Thiago de Castro MartinsMarcos de Sales Guerra Tsuzuki
Apr 23, 2009·Molecular Oncology·Leonard Fass
May 23, 2014·Physiological Measurement·Xiaohui ChenDavid M Davenport
Jan 28, 2020·Annual Reviews in Control·Thiago de Castro MartinsMarcos de Sales Guerra Tsuzuki

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