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

被引:52
|
作者
Duc Minh Pham [1 ]
Aziz, Syed Mahfuzul [1 ]
机构
[1] Univ S Australia, Sch Engn, Mawson Lakes, SA 5095, Australia
基金
澳大利亚研究理事会;
关键词
in vivo tracking; magnetic localization system; real-time tracking; gastrointestinal tract; endoscopic capsule; ALGORITHM;
D O I
10.3390/s141120910
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
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.
引用
收藏
页码:20910 / 20929
页数:20
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