Why PET scans are used

An advantage of a PETscan is that itcan show how well certain parts of your body are working, rather that showing what it looks like.

They'reparticularlyhelpful for investigating confirmed cases of cancer , to determine how far the cancer has spread and how well it's responding to treatment.

Sometimes PET scans are used to help planoperations, such as a coronary artery bypass graft or brain surgery for epilepsy . They can also help diagnose some conditions that affect the normal workings of the brain, such as dementia .

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018