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Applications of Radiation in Health Care:Brachytherapy

It is an advanced cancer treatment wherein radioactive seeds or sources are placed in or near the tumor itself, giving a high radiation dose to the tumor while reducing the radiation exposure in the surrounding healthy tissues. In this procedure, thin catheters are first placed in the tumor and then connected to a High-Dose Rate (HDR) afterloader. This contains a single highly radioactive iridium pellet at the end of a wire. The pellet is pushed into each of the catheters one by one under computer control. The computer controls how long the pellet stays in each catheter (dwell time), and where along the catheter it should pause to release its radiation (dwell positions). With a few well-placed catheters in the tumor, HDR brachytherapy can provide a very precise treatment that takes only a few minutes. After a series of treatments, the catheters are removed, and there are no radioactive seeds left in the body. Cancers of prostate, breast, lung, uterus, cervix, head and neck are treated using brachytherapy techniques. BRIT supplies Brachytherapy sources like Iridium-192 and Cesium-137 for cancer treatment.

Teletherapy machine Brachytherapy treatment using HDR after loader

Brachytherapy treatment using HDR after loader

Teletherapy machine

Teletherapy machine