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Questions and Answers
What is the main purpose of PET-CT imaging?
What is the main purpose of PET-CT imaging?
- To assess lung function
- To examine bone fractures
- To detect cancer and make a diagnosis (correct)
- To produce images of the heart and brain
How does PET-CT differ from ordinary X-ray exams?
How does PET-CT differ from ordinary X-ray exams?
- Ordinary X-ray exams are primarily used for brain mapping
- Ordinary X-ray exams involve injecting radioactive material
- PET-CT focuses on processes within the body related to metabolism (correct)
- PET-CT uses sound waves to create images
What does it mean when an area appears as a 'hot spot' in a PET-CT scan?
What does it mean when an area appears as a 'hot spot' in a PET-CT scan?
- It indicates a small concentration of the radiotracer
- There is a low level of chemical or metabolic activity
- It shows large concentrations of the radiotracer and high metabolic activity (correct)
- It represents an area of low tissue viability
When is PET-CT typically used to evaluate prognosis?
When is PET-CT typically used to evaluate prognosis?
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Which statement best describes the use of radioactive materials in PET-CT?
Which statement best describes the use of radioactive materials in PET-CT?
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What does a 'cold spot' indicate in a PET-CT scan?
What does a 'cold spot' indicate in a PET-CT scan?
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