What should you know about radiotherapy x ray?

A radiotherapy machine generates X-rays with much more energy than a standard imaging examination. The beams pass into the body and release energy along a planned route, causing damage to cells in the treatment area. Cancer cells may be less able to repair this damage than healthy cells, but healthy tissue can also react.

Planning scans show the target and nearby organs. The team selects beam angles, energy and dose, then checks your position at treatment visits. The machine may move around you while you lie still; treatment itself is usually brief, although the whole visit includes positioning and checks.

Wear clothing that allows access to the treatment area and follow instructions about food, drink, bladder or bowel preparation. Tell the team about pregnancy, implanted devices, mobility problems and medicines. Treatment markings or a support mould may help reproduce the planned position.

External X-ray treatment does not leave radiation in your body, so you can usually be with other people after the session. Fatigue and changes in the treated area can occur; ask the team which symptoms fit your treatment site and how to care for yourself.

Call the treatment team if pain, skin irritation, tiredness, swallowing difficulty, bowel changes or urinary symptoms become harder to manage. Seek urgent help for severe breathing difficulty, sudden confusion, fainting or uncontrolled bleeding. Do not alter the treatment schedule without speaking with the department.

Ask how the X-ray beam will reach the target, which organs are being protected, how many visits are planned, and whether you need special preparation. Ask when side effects may begin, which changes require a call, and how to reach the team outside clinic hours.