Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13014-016-0606-x/MediaObjects/13014_2016_606_Fig3_HTML.gif)
Results of a sensitivity analysis comparing costs of CT-HDRBT and CT-RFA in relation to the number of patients treated with either method per year. The break-even is reached at 55 treated patients per year, when calculated costs of CT-HDRBT fall below the costs of CT-RFA. At this point, calculated costs for CT-RFA are 1,841.92 € and 1,827.89 € for CT-HDRBT, and costs for CT-HDRBT decrease further as the number of treated patients increases, whereas costs for CT-RFA remain nearly stable