What is Positron Emission Tomography (PET)?

Q: What is Positron Emission Tomography (PET)?


A: PET is a medical imaging technique used to show the path and distribution of a weakly radioactive substance.

Q: What is the tracer used in PET scans?


A: The tracer used in PET scans is a weakly radioactive substance that dissolves in the blood and concentrates around active brain structures.

Q: What is the purpose of PET scans?


A: The purpose of PET scans is to detect tumors and highlight active areas of the brain.

Q: How is the radioactivity detected in PET scans?


A: The radioactivity in PET scans is detected by a specially constructed device which converts it into a digital image of the brain.

Q: What kind of tracers are used in PET scans?


A: Different kinds of tracers are used in PET scans, but they are often similar to sugar or specially modified sugars.

Q: What is the half-life of the tracer used in PET scans?


A: The half-life of the tracer used in PET scans is around 30-60 minutes.

Q: Why is producing the tracer difficult and expensive?


A: Producing the tracer is difficult and expensive due to the different factors involved in preparing the tracer for the event as it cannot be mass-produced.

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