Overview

A PET-CT scan is a cutting-edge imaging test that uses Positron Emission Tomography (PET) and Computed Tomography (CT) to provide detailed information about how tissues in the body are structured and how they function. The PET part uses a small amount of radioactive tracer to find metabolic activity, and the CT scan gives detailed pictures of the anatomy. They work together to identify unusual areas that may indicate cancer, infection, or inflammation. PET-CT is a common test in oncology for detecting cancer, determining its stage, assessing treatment response, and detecting recurrence. It is a highly sensitive imaging method that doesn't require surgery and is performed at specialised radiology centres.

Why It's Done
PET-CT scans are done to find cancer, see how far it has spread, and see how well treatment is working. PET imaging can see cancer cells because they usually have higher metabolic activity. The scan also helps distinguish between scar tissue and active disease. Correct staging and monitoring help plan the right treatment and improve results.

What to Expect?
Patients are told to fast for several hours before the scan to make sure the results are correct. Checking blood sugar levels is common, especially in people with diabetes. A small amount of radioactive tracer is injected into a vein, and the patient lies still for about 45 to 60 minutes to let the tracer spread through the body. The patient lies still on a scanning table that moves through the PET-CT machine during the scan. The scan itself usually takes 20 to 40 minutes and doesn't hurt. Patients can resume normal activities after the procedure and should drink plenty of fluids to help eliminate the tracer from their bodies.

Recovery & Outlook
Because the procedure doesn't hurt, there is no need for recovery time. PET-CT scans provide doctors with important information that helps them make accurate diagnoses and monitor treatment. They are an important part of modern cancer care and management.