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

View/ Open
File version
Accepted Manuscript (AM)
Author(s)
Aubry, Camille
Thiel, David V
Espinosa, Hugo G
Nadimi, Esmaeil S
Year published
2015
Metadata
Show full item recordAbstract
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 ...
View more >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.
View less >
View more >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.
View less >
Conference Title
2015 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP)
Publisher URI
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