After I got the cross-sectional area of a ROI, How can I measure its HU values?

Support
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Hello!
I’ve been using 3D slicer for a while. I have got the cross-sectional area of a muscle after I used the “segment editor” module AND the " Segment Cross-Section Area" module. But I don’t know how to measure the HU values of the ROI. How can I get the average, median, max，min HU value of it. I used CT image datas.
Thank you!

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You can use Segment Statistics module to get these statistics for each segment.

If you need the values separately for each slice then you may use @jmhuie’s SegmentGeometry extension. Currently it provides only average, but would not be hard to add other statistics as well if there is a good reason. Note that min/max are extremely fragile metrics (a single voxel could throw off your results), probably you would want to use percentiles (1st and 99th or 5th and 95th) instead.

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Yep, wouldn’t be difficult at all to add extra calculations if you decide there are certain ones you’d like