Permanent Seed Prostate Brachytherapy
Brachytherapy is a type of radiation therapy that involves implantation of radioactive material inside the body to kill cancer cells and shrink tumors. It is also known as internal radiation and may radiate high or low amounts of radiation. The therapy is used to treat the cancers throughout the body including prostate, cervix, head and neck, breast, gall bladder, uterus, vagina, lung, rectum, eye and skin.
There are two types of brachytherapy, either permanent or temporary.
Temporary brachytherapy: This type of radiotherapy involves implantation of highly radioactive material within the body inside a catheter or slender tube for a specific amount of time and then withdrawn. The therapy can be administered at low-dose rate (LDR) or high-dose rate (HDR) depending upon the patient's treatment plan.
Permanent brachytherapy: In this type of implantation the radioactive seeds or pellets that are about the size of a grain of rice, can be implanted permanently in or near the tumor. After a few months these implants lose their radioactivity and the inactive seeds remain in the body, without any adverse effects to the patient.