SBRT is a unique modality of radiation treatment. Typically, radiation therapy is delivered in many small doses called fractions (often 40 or more), but studies have been created to explore the possiblity of delivering radiation in fewer, larger doses. This article covers two studies, examining the outcome of hypofractionated (fewer fractions) treatment delivered by SBRT. 

LDR (low dose rate) brachytherapy for prostate cancer is more commonly known as seed implants. You may be familiar with this treatment option but for those of you who may be new to the confusing world of prostate cancer treatment, seed implants involve the insertion of small radioactive pellets or seeds into the prostate by transrectal ultrasound guidance, in order to deliver a focused dose of radiation to the prostate.