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  • Challenges in the Localization of a UHF Radio Pill in the Gastro-Intestinal Tract

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    AubryPUB1233.pdf (164.9Kb)
    Author
    Aubry, Camille
    Espinosa, Hugo
    Thiel, David
    Nadimi, Esmaeil S.
    Year published
    2015
    Metadata
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    Abstract
    Visual and chemical investigations in the gastro-intestinal tract using injected "pill" sized sensors are challenging. The throughput takes between 24 and 48 hours and a precise location accuracy to less than 5 cm is necessary for keyhole surgery. Model and computational experiments using a 433 MHz subsurface transmitter in a saline (conductivity = 0.2 S/m) tank show that location accuracy is compromised by non-conducting boundaries between internal organs connected by non-conducting interstitial tissue. The internal transmitter profile changes significantly by the presence of insulating boundaries modelled by non-conducting boundary in an otherwise uniform conducting medium. A worn sensor array in the front of the abdomen can define the location of a GI pill only if there is significant information about the internal organ configuration.
    Conference Title
    2015 International Symposium on Antennas and Propagation
    Publisher URI
    http://ieeexplore.ieee.org/abstract/document/7447300/
    Copyright Statement
    © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subject
    Electrical and Electronic Engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/123590
    Collection
    • Conference outputs

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