You will be asked to lie on the CT scanner table; your position will depend on the site of the tumour.
Monitoring equipment will be attached to you and oxygen given if required.
You will be given an injection to help with pain relief and also help you feel more relaxed but you will be awake for the procedure. If you are in pain we can give you additional medication.
A CT scan will be performed to locate the tumour and your skin marked to localise the site. Your skin will be cleaned with antiseptic and local anaesthetic will be injected into the skin.
Your radiologist will ask you to keep quite still while the injections are given.
You may notice a warm tingling feeling as the anaesthetic begins to take effect.
Your procedure will only go ahead when you and your radiologist are sure that the area is numb.
Your radiologist is always near to you and you can speak to him/her whenever you want to.
Using CT image guidance the radiologist will insert the needle through the skin to the site of the tumour. Once the needle is in the correct place radiofrequency energy is applied.
At the end of the procedure the needle is removed. The procedure may need to be repeated if the tumour is large or there is more than one tumour.
The length of time for the treatment will depend on the tumour but will be at least one hour.