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ASRT introduction to PET Questions with Correct Answers

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ASRT introduction to PET

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ASRT introduction to PET

Which interaction results in the production of 2 photons traveling 180 degrees from each
other? - answer Annihilation reaction

Pet- CT is used for what purposes? - answer- Evaluating cardiac disease
- distinguishing malignant cancer from benign cancers
- monitoring cancer treatment effectiveness

BUT NOT for providing detailed anatomical images

What is a positron? - answer Positively charged electron

Coincidence detection - answerin PET the two 511 KeV photons should hit the
detectors in oppostite side at the same time to form signal

The requirements for PET-CT operators are set by? - answer Individual states

Which PET-CT component is responsible for amplifying light and creating an electrical
impuse? - answer Photomultiplier tube

All of the Following are true of PET-CT crystals? - answer1. They are very dense
3. They convert x-radiation to light
4. They do not absorb moisture from the atmosphere

The Collimators used for 2D PET scanning are made of? - answerLead and tungsten

2D imaging take more time to complete than 3D imaging? - answerTRUE

Which of the following substances has the longes half life?
- Germanium 68
- Cesium 137
- Barium 137
- Gallium 68 - answerCesium 137

half life of cesium 137 - answer30 years

What is the most valuable aspect of PET-CT? - answerAble to display glucose
metabolism

How are radiopharmaceutical us in PET-CT made? - answerVia a cyclotron

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