A recent approach to radiotherapy for prostate cancer is the administration of high doses of radiation to the prostate while minimizing the risk of side effects. Thus, image-guided radiotherapy utilizes advanced imaging techniques and is a feasible strategy for increasing the radiation dose. New radioactive particles are another approach to achieving high doses and safe procedures. Prostate brachytherapy is currently considered as a combination therapy. Spacers are useful to protect adjacent organs, specifically the rectum, from excessive radiation exposure.
Keywords: brachytherapy; hydrogel spacer; image-guided radiation therapy; intensity-modulated radiation therapy; metastasis direct therapy; prostate cancer; radiation therapy; stereotactic body radiation therapy; volumetric modulated arc therapy.