Magnetic markers as a noninvasive tool to monitor gastrointestinal transit.

Weitschies, W; Wedemeyer, J; Stehr, R; Trahms, L · IEEE Trans Biomed Eng · 1994

basic_science · Level V

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Abstract

A novel method to monitor gastrointestinal transit of solid oral dosage forms or nutrients is presented, providing a simultaneous recording of gastrointestinal motility of the traversed section. Based on the measurement of the magnetic field of an ingested magnetized marker, its location is found by fitting a magnetic dipole field to the measured data.

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