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Radiology Review

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Imaging Techniques
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CT
For CT, what is meant by the level?

For CT, what is meant by the level?

For CT, what is meant by the level?

The HU value chosen for the middle gray on the grayscale

For CT, what is meant by the window?

If a CT image is viewed with a window width of 100 HU and a level of 75 HU, what are the lower values of the window (in HU)?