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Questions and Answers
What is the linear attenuation coefficient dependent on?
What is the linear attenuation coefficient dependent on?
- The density of the material and the photon energy
- The composition of the material, the density of the material, and the photon energy (correct)
- Only the composition of the material
- Only the photon energy
What is the value of HUwater?
What is the value of HUwater?
- -1000
- 0 (correct)
- 1
- 1000
What is the Hounsfield unit corresponding to 0.1% of the linear attenuation coefficient of water?
What is the Hounsfield unit corresponding to 0.1% of the linear attenuation coefficient of water?
- 1 (correct)
- 1000
- 100
- 10
How many grey values are typically offered in an 8-bit grey scale?
How many grey values are typically offered in an 8-bit grey scale?
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What is the purpose of the window level (WL) and window width (WW)?
What is the purpose of the window level (WL) and window width (WW)?
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What is the primary function of the rotating gantry in a CT imaging system?
What is the primary function of the rotating gantry in a CT imaging system?
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How is electrical power typically supplied to the rotating gantry?
How is electrical power typically supplied to the rotating gantry?
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What is the unit of measurement for Hounsfield units?
What is the unit of measurement for Hounsfield units?
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What is the Hounsfield unit corresponding to air?
What is the Hounsfield unit corresponding to air?
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What happens when the same image data is displayed at different window levels and widths?
What happens when the same image data is displayed at different window levels and widths?
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