Abstract

Single-lumen balloon device (MammoSite) has been widely used in the partial breast HDR brachytherapy after lumpectomy for early-stage breast cancer. Recently a multi-lumen balloon device (Contura) has become available, which has 5 fixed lumens in the shaft: one centered and four offset by 5 mm. In this study, we report the dosimetric comparison between treatment plans using single lumen and those using multi lumens.

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