In this blog, we will discuss how PET CT scan works in detail. We will also explore some questions related to PET CT scan testing procedure.
Overview
PET CT scan is the short form of Positron Emission Tomography combined with Computed Tomography used to detect various medical conditions in the body. PET CT is an advanced radiological procedure used to look for different conditions in a person.
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CT gives cross-sectional images to detect abnormalities easily
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PET scan shows structural and functional aspects of the body
There are various tests other than PET CT to detect diseases, but PET CT uses a radioactive tracer that helps identify abnormalities at the cellular level.
How PET CT Scan Works
PET CT scan uses a radioactive tracer for detecting abnormalities, helping identify conditions at the earliest stages. Early detection leads to customized and more effective treatment compared to conventional approaches.
PET CT is a combination of two tests that detect abnormalities through:
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Images
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Structural changes
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Metabolic activity in the body
Steps for the Procedure of PET CT Scan
There are various steps involved in the procedure of a PET CT scan:
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Fasting before the test
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Radioactive tracer injection
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Waiting period until the tracer reaches the required body parts
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Lying on the bed attached to the scanning machine
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Body scanning & image capture
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Analysis of images
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Formation of results
List of PET CT available
- FDG-PET scan (Book Now)
- F-18 Choline PET Scan (Book Now)
- Brain PET CT scan (Book Now)
- DOTA PET CT scan (Book Now)
Click Here for the list of all Types of PET CT scan
Conclusion
PET CT scan is an advanced and effective test combining Positron Emission Tomography and Computed Tomography. It is used in various diseases like cancer, heart diseases, neurological disorders, infections, and inflammatory conditions.
PET CT also helps in creating customized treatments, which are more effective compared to conventional methods.
Frequently Asked Questions
Which diseases can PET CT scan detect?
PET CT scan can detect conditions like cancer, neurological disorders, and cardiac diseases.
Which scan is used more often for cancer detection?
PET CT is the preferred test for detecting cancer.
Is PET CT advanced compared to MRI?
Yes, PET CT is more advanced compared to MRI.
Is PET CT used only to detect cancer?
No, PET CT is used for neurological, cardiac, infectious, and many other conditions.
Is PET CT an expensive test?
Yes, compared to MRI and CT tests, PET CT is an expensive test.

