Figure 3.

Comparison of dose levels 1 to 3 (stereotactic radiation therapy boost) and high-dose-rate (HDR) brachytherapy for (a) percentage of target (prostate) volume receiving 19 Gy (100%), 23.75 Gy (125%), 28.5 Gy (150%), and 33.25 Gy (175%) and (b) dose to 1 mL of bladder and rectum and dose to 10% of the intraprostatic urethra. This shows increasing regions of high dose inside the prostate as patients proceed through the dose escalation levels, but this has not been at the expense of bladder, rectum, or urethra doses (b).