What is a PET-CT Scan?
PET-CT Scan refers to Positron Emission Tomography - Computed Tomography Scan detects the starting signs of heart disease, brain disorder, and cancer. A small amount of injectable radioactive materials called radiotracers or radiopharmaceuticals detect diseased cells.
To check the symptoms of various diseases such as cancer, including breast cancer, lung cancer, thyroid cancer, coronary artery disease, heart attack, and other heart problems this PET-CT scan is used. Even brain disorders like brain tumours, epilepsy, dementia, and Alzheimer's disorder will be detected through this test.
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| Test Type | Imaging Test |
|---|---|
| Preparation | Before the scan - stop exercising for 24 hours, follow a special diet for 12 to 24 hours, and never drink or eat anything except water for 6 hours prior to the scan. Seek specific instruction from the consulting doctor. |
| Report | Within 24 to 48 hours. |
| PET-CT scan cost | Rs. 10000 to Rs 35000 approximately. |
Why do I need a PET-CT scan?
PET-CT scans are commonly used for various types of cancer. They are generally considered more accurate in diagnosing cancer compared to PET or CT scans alone. PET-CT scans have several benefits, including:
- Helping to diagnose cancer.
- Determining the size of the cancer and whether it has spread (staging).
- Assisting in the decision-making process for surgery to remove the cancer.
- Guiding the selection of the most suitable treatment for cancer.
- Monitoring whether the cancer has returned.
- Planning radiotherapy treatment.
- Assessing the effectiveness of cancer treatment.
Following cancer treatment, a scan may reveal an area that appears to still contain cancer cells. However, this could be scar tissue remaining from the cancer that was eliminated by the treatment. In such
Preparing for your PET-CT scan
- Fasting Reminder : PET-CT scans usually require fasting for 4 to 6 hours beforehand, but you can still drink water.
- Special Circumstances : Those with conditions like diabetes may struggle with fasting. If this applies to you, reach out to the number on your appointment letter to discuss any necessary adjustments.
- Claustrophobia Concerns : Feeling claustrophobic during the scan? Let the staff know beforehand so they can help make you more comfortable.
- Relaxation Medication : Your doctor can provide medication to help you relax during the scan, making the process easier for you.
What are the risks of a PET CT scan?
A PET-CT scan is generally a safe test, but like any medical procedure, it does come with some risks. However, your doctor and radiographer will carefully consider the benefits of the test and ensure that they outweigh these risks. Here are some of the potential risks to be aware of:
- Pregnancy : If you are pregnant, it is important to inform the department beforehand. The radiation from the scan could potentially harm the developing baby. In most cases, pregnant women should only undergo the scan in emergencies.
- Breastfeeding : If you are currently breastfeeding, it is advisable to let the department know a few days before your appointment. They will inform you if you need to temporarily stop breastfeeding after receiving the radioactive tracer. It may be necessary to store enough expressed milk for at least one feeding.
- Radiation : Exposure to radiation during a PET-CT scan can slightly increase the risk of developing cancer in the future. If this concerns you, it is recommended to discuss it with your doctor for further clarification and reassurance.
- Bruising and swelling : It is possible to experience a small bruise around the area where the needle is inserted for the scan. Additionally, although rare, there is a risk of the radioactive tracer leaking outside the vein, which can cause swelling and pain in the arm.
- Allergic reaction : While extremely rare, some individuals may have an allergic reaction to the radioactive tracer. Symptoms may include weakness, sweating, and difficulty breathing. If you feel unwell during or after the scan, it is important to inform your radiographer immediately.
Overall, the risks associated with a PET-CT scan are generally low, and the medical team will take necessary precautions to ensure your safety throughout the procedure.
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Book an AppointmentFrequently Asked Questions
It might not show all types of cancers. This PET-CT scan can show only solid tumours in the brain, prostate, thyroid, lungs, and cervix cancers. They might be read along with other test findings to confirm a cancer.
PET-CT scan highlights the high metabolic activity inside the body that need not be cancer. That can be an area of inflammation, infection, trauma, or surgery recently done.
You were recommended for this scan if you are suspected to have cancer-based on your symptoms, physical exam, or other tests. It is also recommended to see the effectiveness of recent cancer treatment.
Certain foods to avoid after a PET-CT scan is
- Cereals
- Pasta
- Dry beans
- Fruit juices
- Sugar, honey, desserts or candy
- Starchy vegetables
It takes approximately 30 minutes.
PET-CT scan will not hurt or give you pain while performing scanning.
No, there will be no sickness after the PET-CT scan. You can do your routine work as usual.
5 glasses of water you need to drink. Feeding mothers need to wait for 24 hours to resume breastfeeding
