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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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