Abstract #2372

Assessing void artifacts in follow-up breast MRI scans after sentinel node biopsy using superparamagnetic tracer

Anke Christenhusz¹, Lejla Alic¹, Frank F.J. Simonis¹, Margreet C Van der Schaaf², Caroline A.H. Klazen², Joost M Klaase³, Anneriet E Dassen³, and Bennie ten Haken¹

¹Techmed Centre, University of Twente, Enschede, Netherlands, ²Department of Radiology, Medisch Spectrum Twente, Enschede, Netherlands, ³Department of Surgery, Medisch Spectrum Twente, Enschede, Netherlands

Sentinel lymph node biopsy using a magnetometer and a superparamagnetic iron oxide (SPIO) tracer is currently being introduced for breast cancer patients eligible for breast conserving surgery. However, the residual SPIOs potentially result in void artifacts in follow-up MRI examinations. This study assesses the influence of injection dose on the severity of the void artifacts in follow-up MRI by means of qualitative grading by radiologists.

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