About this service

Planning your treatment-CT scan

If you need a CT scan

  • Having a CT scan gives us an accurate 3D picture of your body and your cancer
  • We will ask you to lie still on our table, it may feel hard but we will make you as comfortable as possible
  • We may to need to inject a dye into your arm to highlight parts of your body
  • After the scan we may want to make marks on your skin, like a tattoo, to make sure that we are always in exactly the same position when we do the radiotherapy. These will look like little freckles
  • We can see you and speak to you all of the time
  • Not everyone needs a CT scan before treatment
  • Even if you have recently had a CT scan we may still need to do another
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