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Report on a study of presence of void artifacts on postoperative MRI breast scans after superparamagnetic iron oxide sentinel lymph node biopsy
Mirta Zekan Vučetić
; Department of Radiology, University Hospital for Tumors, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
Josip Ninčević
; Department of Radiology, University Hospital for Tumors, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
Abstract
Sentinel lymph node biopsy (SLNB) is the gold standard in surgical treatment of early-stage breast cancer. Since June 2015 we have been performing SLNB in our hospital with a new technique which uses superparamagnetic iron oxide (SPIO), commercially known as Sienna+, as tracer and device-magnetometer (SentiMag) for locating axillary lymph nodes which accumulated SPIO particles. Artifacts resulting from SPIO accumulation in the breast tissue were observed on post-operative breast magnetic resonace imaging (MRI) scans in all patients who underwent postoperative breast MRIs. Artifacts were
observed on T1-weighted images, as well as on dynamic and subtraction sequences. We have designed a study that will include a three-year post-operative follow-up of these patients with MRI breast scans in order to evaluate presence or absence of these artifacts and change of artifacts over time. Upon completion of the study indications for using magnetic SLNB may need to be revised.
Keywords
breast MRI artifacts; Sienna +; SentiMag; magnetic SLNB
Hrčak ID:
177242
URI
Publication date:
28.12.2016.
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