IGRT or image guided radiation therapy, is medical imaging to confirm the location of a tumor immediately before and in some cases, during the therapy. It improves the precision and accuracy of the treatment.
By adding detailed images, IGRT ensures that the powerful radiation beams are specifically focused on the targeted area, in turn increasing the probability of tumor control.
Images are done before or sometimes during each treatment session. The radiation therapy team then refers to the previously taken images to cross check whether there has been any change in the position of the tumor ensuring precision in every session.
Due to higher precision, there’s a decreased radiation exposure to normal tissue surrounding the tumor, making this a much safer option.
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