The Impact of Bioabsorbable 3D Fiducial Marker on Radiation Dosimetry and Cosmesis in Early Stage Breast Cancer
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS(2021)
Abstract
In this analysis, the presence of a 3D marker significantly increases the size of a lumpectomy GTV compared to no demarcation and less than surgical clips. The lack of demarcation is worrisome for potential marginal misses - especially for partial breast irradiation. The usage of clips and/or 3D marker is strongly associated with the individual surgeon. The marker used did not influence cosmetic outcome but very few patients had less than EXC-good outcomes. A collaboration between radiation oncologists and surgeons may lead to increased usage of markers and improved lumpectomy delineation.
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Key words
bioabsorbable 3d fiducial marker,radiation dosimetry,breast cancer,early stage breast cancer
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