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Whole-body PET-CT Scan
PET stands for Positron emission tomography. It is a painless and non-invasive ( when no break in the skin is created) technology that is used by doctors to determine how tissues and organs inside a body are working on a molecular and cellular level. PET scan is known to be the most effective and powerful diagnostic device that gives accurate and complete learning about a disease residing in the body. In fact, the PET scan is most popularly used to detect cancers, heart diseases, and brain disorders.
A PET-CT scan is used to diagnose the following things:
- PET CT scan helps doctors to determine how big the cancer is and what stage of cancer it is.
- Detects if a lump is a cancer or not.
- Checks whether a treatment is working as planned or not.
- Effective for pinpointing areas of a brain where epileptic seizures are present.
- Detects heart diseases and can find areas of blood clots and blood vessel blockages, damaged muscles and other cardiovascular problems.
- Gives effective results in suspecting the recurrence of cancer or any other disease.
Preparations need to be done before a PET-CT scan:
- You need to bring a list of medications that you are currently going on.
- Don’t do any rigorous exercise for 24 hours.
- If you are a diabetic person, you need to follow a special diet before the scan.
- You need to stop eating for 4 to 6 hours before the PET-CT scan.
- Limit your carb intake for 12 to 24 hours before the PET scan.
- If you are pregnant or might be, then you need to inform your doctor.
How long does the PET scan take?
First, the radiotracer will be injected into a vein. This process will take up to one hour to get absorbed in the body. After that, the scan will take about 20 to 45 minutes more. You will be required to remain still while the examination is being done. So, the whole test will take up to 90 minutes or more than that.