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Your treatment with radiation was mapped out.

Treatment with radiation is also called radiotherapy. Radiotherapy involves the rays destroying diseased tissue. This involves protecting the surrounding tissue as much as possible. Therefore, before radiotherapy, it is mapped out very precisely which areas should receive radiation.

Before radiotherapy, it is usual for the patient to have explained to them exactly how the treatment would proceed and possible side effects. Images of the body are also produced. You have had an MRI scan and a CT scan performed for this purpose. The MRI images and CT images were subsequently merged. These images are used to map out with a computer the areas that are to receive radiation. A CT scan involves sending X-ray beams through the body. Measurements are then taken to see how much of these beams are getting to the other side of the body. A computer then converts the measurements into images of the inside of the body. An MRI scan involves creating disc-shaped images of the inside of the body. The scan involves the use of very large magnets.