FAQs about PET Scan for Metastasis in Chandigarh CHD
What is a PET scan and how does it help in diagnosing metastasis?
A PET (Positron Emission Tomography) scan is a nuclear medicine imaging technique that allows healthcare providers to observe metabolic activity in tissues and organs. It is particularly useful in diagnosing metastasis, as it can visualize the spread of cancer cells to other parts of the body. The scan works by injecting a small amount of radioactive glucose that cancer cells absorb more than normal cells, highlighting areas of concern which are analyzed by medical professionals to determine the presence and extent of metastasis.
How should I prepare for a PET scan?
Preparation for a PET scan is essential for obtaining accurate results. Patients are generally advised to fast for at least six hours before the scan. This ensures that glucose levels are low enough to allow for the effective imaging of metabolic activity. Also, avoid strenuous physical activity 24 hours prior to the test, and inform your healthcare provider of any medications you are taking, especially if they may affect glucose metabolism. Lastly, it’s advisable to wear comfortable, loose-fitting clothing, as you may need to change into a hospital gown.
Is a PET scan safe, and are there any risks involved?
Yes, a PET scan is considered a safe imaging procedure, with minimal risks. The amount of radiation exposure from a PET scan is comparable to that of a CT scan; however, it is generally lower than that of other imaging techniques such as fluoroscopy. The radioactive material used is eliminated from the body within hours. While serious side effects are rare, patients with certain allergies or medical conditions should consult with their healthcare provider to assess the risks.
How long does a PET scan take?
The entire process of a PET scan usually takes about two hours, from preparation to the scan itself. The scanning procedure typically lasts about 20 to 30 minutes. After receiving the radioactive tracer, patients will have to wait for a brief period while the tracer distributes through the body before the imaging begins. This allows for the most accurate results to be captured.
When will I receive the results of my PET scan?
Results from a PET scan are typically available within one to two days. Once the imaging is completed, a radiologist will analyze the images and provide a report to your healthcare provider. Your doctor will then discuss the results with you and recommend any further steps based on the findings.