1742-6596_224_1_012169.pdf (518.54 kB)
A flexible low-cost, high-precision, single interface electrical impedance tomography system for breast cancer detection using FPGA
journal contribution
posted on 2023-06-08, 12:18 authored by Ali Zarafshani, Nicolas Huber, Nevis Béqo, Benjamin Tunstall, Gerald Sze, Chris ChatwinChris Chatwin, Wei WangTypically, in multi-frequency Electrical Impedance Tomography (EIT) systems, a current is applied and the voltages developed across the subject are detected. However, due to the complexity of designing stable current sources, there has been mention in the literature of applying a voltage to the subject whilst measuring the consequent current flow. This paper presents a comparative study between the two techniques in a novel design suitable for the detection of breast cancers. The suggested instrument borrows the best features of both the injection of current and the application of voltage, circumventing their limitations. Furthermore, the system has a common patient-electrode interface for both methodologies, whilst the control of the system and the necessary signal processing is carried out in a field programmable gate array (FPGA). Through this novel system, wide-bandwidth, low-noise, as well as high-speed (frame rate) can be achieved.
History
Publication status
- Published
File Version
- Published version
Journal
Journal of Physics: Conference SeriesISSN
1742-6588Publisher
IOP ScienceExternal DOI
Issue
1Volume
224Page range
012169Event name
14th International Conference on Electrical Bioimpedance, Held in Conjunction with the 11th Conference on Biomedical Applications of EIT, ICEBI and EIT 2010;Gainesville, FLEvent location
Gainesville, FL, USAEvent type
conferenceEvent date
4/4/2012 to 8/4/2012Department affiliated with
- Engineering and Design Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2012-08-30First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-08-17Usage metrics
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