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Sensors 2014, 14(11), 20910-20929; doi:10.3390/s141120910

A Real-Time Localization System for an Endoscopic Capsule Using Magnetic Sensors

School of Engineering, University of South Australia, Mawson Lakes, South Australia 5095, Australia
Expanded conference paper based on “A real-time localization system for an endoscopic capsule”, 2014 IEEE Ninth International Conference on Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP).
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Received: 13 June 2014 / Revised: 23 August 2014 / Accepted: 22 September 2014 / Published: 5 November 2014
(This article belongs to the Special Issue Biomedical Sensors and Systems)
View Full-Text   |   Download PDF [2036 KB, uploaded 5 November 2014]   |  

Abstract

Magnetic sensing technology offers an attractive alternative for in vivo tracking with much better performance than RF and ultrasound technologies. In this paper, an efficient in vivo magnetic tracking system is presented. The proposed system is intended to localize an endoscopic capsule which delivers biomarkers around specific locations of the gastrointestinal (GI) tract. For efficiently localizing a magnetic marker inside the capsule, a mathematical model has been developed for the magnetic field around a cylindrical magnet and used with a localization algorithm that provides minimum error and fast computation. The proposed tracking system has much reduced complexity compared to the ones reported in the literature to date. Laboratory tests and in vivo animal trials have demonstrated the suitability of the proposed system for tracking a magnetic marker with expected accuracy. View Full-Text
Keywords: in vivo tracking; magnetic localization system; real-time tracking; gastrointestinal tract; endoscopic capsule in vivo tracking; magnetic localization system; real-time tracking; gastrointestinal tract; endoscopic capsule
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pham, D.M.; Aziz, S.M. A Real-Time Localization System for an Endoscopic Capsule Using Magnetic Sensors. Sensors 2014, 14, 20910-20929.

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