Feasibility study evaluating a magnetic marker in an ex-vivo porcine model

Mirjam C.L. Peek, Ali Zada, Muneer Ahmed, Rose Baker, Masaki Sekino, Moriaki Kusakabe, Michael Douek

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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Abstract

Aims The magnetic technique using a magnetic tracer and handheld magnetometer was successfully evaluated in breast surgery. Residual tracer at the injection site can cause susceptibility artefacts on breast magnetic resonance imaging (MRI), therefore for lesion localization a solid marker would be preferable. Four magnetic markers were developed for localization to evaluate its clinical applicability. Methods Comparison was made of the maximum magnetic counts and artefact-volume on MRI. Results All markers were successfully detected, the spring marker showed the highest mean magnetic counts (627.8±400.2, mean±SD) with unequal variances (p<0.001) and the butterfly marker showed the smallest mean artefact-volume (11.1±2.3 cm3) with a significant difference between markers (p=0.049). Conclusion Localization using a magnetic marker is feasible and further evaluation is required within a clinical trial.
Original languageEnglish
JournalJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Early online date16 Jan 2018
DOIs
Publication statusE-pub ahead of print - 16 Jan 2018

Keywords

  • Magnetic technique
  • magnetic markers
  • lesion localization
  • magnetometer
  • porcine model

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