Positron Emission Tomography and Computed Tomography (PET/CT) scan is a highly sensitive imaging technique used in oncology, cardiology, neurology, and infectious and inflammatory diseases. This test provides the special benefits of both in one procedure.

PET/CT scan has many uses. It can help your doctor accurately detect, diagnose and set a treatment plan for:

• Cancer
• Infectious and Inflammatory Disorders
• Brain Disorders

PET test captures images of minuscule changes in the body’s metabolism caused by the growth of abnormal cells, while CT scan images simultaneously allow physicians to pinpoint the exact location, size and shape of the diseased tissue or tumour. There are tremendous benefits of having a combined PET/CT scan:

• Earlier diagnosis
• Accurate staging and localization
• Precise treatment and monitoring

As this test is highly sensitive in nature, PET/CT scans can pick up cancer sites other imaging tests like CT or MRI sometimes cannot. Also, some cancer treatments, especially radiation therapy, can cause tumor areas to fibrose. Conventional imaging techniques cannot differentiate tumor from fibrosis, whereas PET/CT scan can.

The only pain involved in the PET scan procedure is the needle prick when you receive the injection, otherwise, it is not known to be painful or uncomfortable.

Here are some things you need to be aware of before the PET/CT scan:

• If you are on medication, ask your doctor if you should keep taking it or refrain from it.
• Avoid any strenuous activity or exercise 24 hours before the procedure.
• Do not eat or drink anything except water 6 hours prior to your appointment.
• If you are pregnant or unsure of your pregnancy status, consult with your doctor prior to your test.