“…Regarding the performance, features, and reproducibility as well as regarding the possibilities to shape adequate dose distribution, there exist large differences among diverse brachytherapy techniques. Today there are several brachytherapy techniques available-multicatheter brachytherapy; single-entry intracavitary devices like the MammoSite balloon; singleentry multilumen catheter devices like SAVI (strut-adjusted volume implant, Cianna Medical, Aliso Viejo, CA), CONTURA Multi-Lumen Balloon (Bard Biopsy Systems, Tempe, AZ), or ClearPath (NorthAmerican Scientific Inc., Chatsworth, CA); electronic brachytherapy, seeds brachytherapy, and non-invasive brachytherapy [72][73][74][75][76][77][78][79][80][81]. Among all these techniques, level 1 evidence is only available for multicatheter brachytherapy [1].…”