Identify HU range for Air on CT image

imbeatriz
Thu, 15 May 2025 17:05:52 +0000
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Hi everyone,

I used TotalSegmentator on a CT image, and it successfully segmented all relevant structures. However, I noticed that it does not include a specific label for air that I need.

I need to determine the HU range—minimum and maximum voxel values—that correspond to air in the original CT image. Could anyone please explain how I can extract or visualize this information using 3D Slicer?

Any guidance would be greatly appreciated.

Thank you!

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