Abstract
Metal detectors have been used for diagnostic purposes since 1881. They have been utilised to localise a myriad of foreign objects including bullets, intraocular metallic fragments, swallowed coins and other foreign bodies and medical devices. Rapid detection of metallic objects may facilitate diagnosis or treatment. Metal detectors are diagnostically useful because of their low expense, lack of radiation exposure and ease of use. This article reviews the history of metal detection in the practice of medicine and provides an overview of the utility of metal detectors in current diagnostic practice.
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