What is intensity-modulated radiotherapy done with?

Before treatment, the team uses imaging and planning software to map the tumour or target area and nearby organs. The linear accelerator moves around you and sends radiation from several directions. Its multileaf collimator changes the beam shape and intensity so the planned dose follows the target while limiting exposure to surrounding tissue as far as the plan allows.

A mould, mask, or other support may help keep the treated body part in the planned position. The machine does not touch you, and the radiation is delivered during scheduled treatment visits set by the radiation team.

Follow instructions about imaging, bladder or bowel preparation, clothing, and medicines because small changes in positioning can affect the plan. Wear comfortable clothing and tell the team if pain or stiffness makes it hard to lie still. Ask before applying products to the treatment area, especially if the skin becomes sensitive.

Tell the radiation team about worsening skin reaction, open or weeping areas, increasing pain, trouble swallowing, persistent vomiting, diarrhoea, urinary difficulty, or unusual breathlessness, depending on the treated region. Seek urgent help for severe breathing difficulty, heavy bleeding, sudden weakness, or confusion. The team can distinguish expected effects from problems needing prompt review.

Which area will be treated, and which organs are being protected in the plan? Will I need a mask or mould? What preparation is required before each visit? Which skin or body symptoms should be reported immediately?