LOCALIZATION OF MAGNETIC FOREIGN BODIES IN HUMANS USING MAGNETIC FIELD SENSORS

Carlos Hall Barbosa, Elisabeth Costa Monteiro, Flávia Pompéia

Abstract

A technique had been previously developed, based on magnetic field measurements using a SQUID sensor, to localise in three dimensions steel needles lost in the human body. In all six cases that were treated until now, the technique allowed easy surgical localisation of the needles with high accuracy, decreasing by a large factor the surgery time and also reducing the generally high odds of failure. The method is accurate, non-invasive and innocuous, with clear clinical importance. In this paper we present preliminary measurements performed with a fluxgate magnetometer instead of a SQUID.

Keywords

foreign body, magnetic field, sensors

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PWC-2003-TC10-024.pdf

DOI

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IMEKO TC

TC10 - Measurement for Diagnostics, Optimization and Control

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