Question

In: Physics

What is PET— what kind of image does it create and how? Why use PET with...

What is PET— what kind of image does it create and how?

Why use PET with CT rather than CT alone? Give the main reason/application.

What sort of radiation is involved? Is PET “perfectly safe”? If not, what are the dangers?

Solutions

Expert Solution

A PET (Positron Emission Tomography) uses radiation to show what's going on inside a human body. It produces a multi-dimensional , colored images of inside working of organs. In this , the radiation is detected by a tracer which consists of a radioactive material combined with glucose. This tracer is then injected into body where it travels to cell which need glucose. In this way an image comprised of hot and cold spots is created.

One reason might be high radiation level in CT alone. In PET-CT combined, the radiation levels are under control. Their combination can produce sequential images which are combined into single image. Functional imaging (like how organs are functioning) from PET is combined with anatomic imaging from CT is combined.

PET is not safe for everyone. As it involves use of radioactive material . A pregnant women should not opt for PET as radioactive may harm the fetus. Some people may have allergic reaction to the radioactive tracer. Apart from that, it is mostly safe.  


Related Solutions

what is image pricing and what kind of service does it offer? in 300 words
what is image pricing and what kind of service does it offer? in 300 words
What kind of neurons control skeletal muscles? What is a motor unit? How and why does...
What kind of neurons control skeletal muscles? What is a motor unit? How and why does the number and size of motor units differ in “precision” muscles versus “power” muscles.
What kind of policy problems does the global nature of e-commerce create?
What kind of policy problems does the global nature of e-commerce create?
What kind of desires does Google create, i.e. what isit that consumers "learn to want" in...
What kind of desires does Google create, i.e. what isit that consumers "learn to want" in using Google? Do consumers get what they want, i.e. are these healthy or unhealthy desires?
What kind of integration or integration mechanisms does Johson & Johnson use?
What kind of integration or integration mechanisms does Johson & Johnson use?
What kind of support does a franchisor need to provide? why is it important?
  What kind of support does a franchisor need to provide? why is it important?
2. What kind of policy problems does the global nature of e-commerce create?
2. What kind of policy problems does the global nature of e-commerce create?
Out of 82 people surveyed about what kind of pet they have ( dog, cat or...
Out of 82 people surveyed about what kind of pet they have ( dog, cat or parrot ), 47 people people had a dog, 40 people had a cat and 11 people had a parrot, these are totals and are not mutually exclusive.. The 47 people with a dog may have also had other animals.    There were 5 people that had all 3 pets. There were 15 people who had a dog and a cat, not mutually exclusive. There were...
Describe how direct and indirect digital detectors create an image. In what way are they different?
Describe how direct and indirect digital detectors create an image. In what way are they different?
Does the Maillard reaction create any compounds that cause health concerns? If so, what kind of...
Does the Maillard reaction create any compounds that cause health concerns? If so, what kind of compounds raise what sort of concerns?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT