Advancements in radiation sources have also been instrumental in shaping the future of brachytherapy. Low-energy isotopes, such as iodine-125 and palladium-103, have been widely used for prostate Brachytherapy. However, high-dose rate (HDR) brachytherapy, utilizing temporary placement of highly radioactive sources, is gaining popularity due to its convenience and flexibility. HDR brachytherapy allows for precise dose delivery, shorter treatment times, and reduced radiation exposure to medical staff. Additionally, the use of new isotopes, such as cesium-131, is being explored, offering potential advantages in specific clinical scenarios.

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