2.1
The Magtrace and Sentimag system (Endomag) comprises a magnetic liquid tracer (Magtrace) and a handheld magnetic sensing probe (Sentimag). Magtrace is intended for use only with the Sentimag system. Magtrace is a non-radioactive dark brown liquid containing superparamagnetic iron oxide with a carboxydextran coating. It is both a magnetic marker and a visual dye. Magtrace is injected into the tissue beneath the areola or interstitial tissue around a tumour. The particles are then absorbed into lymphatics and become trapped in sentinel lymph nodes that can then be detected by the magnetic sensing probe and also by visualisation to assist with biopsy.