# how can I get the Hounsfield Units from a DICOM file acquired by CB. The purpose of knowing this, it this is to analyze the bone density of both jaws for the correct planning of dental implants. Thank you.

**URL:** <https://discourse.slicer.org/t/how-can-i-get-the-hounsfield-units-from-a-dicom-file-acquired-by-cb-the-purpose-of-knowing-this-it-this-is-to-analyze-the-bone-density-of-both-jaws-for-the-correct-planning-of-dental-implants-thank-you/14574>\
**Category:** Support\
**Created:** [November 12, 2020, 8:37pm UTC](https://discourse.slicer.org/t/how-can-i-get-the-hounsfield-units-from-a-dicom-file-acquired-by-cb-the-purpose-of-knowing-this-it-this-is-to-analyze-the-bone-density-of-both-jaws-for-the-correct-planning-of-dental-implants-thank-you/14574 "2020-11-12T20:37:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![odonto100](https://avatars.discourse-cdn.com/v4/letter/o/e56c9b/32.png) [@odonto100](https://discourse.slicer.org/u/odonto100)\
**Post date:** [November 12, 2020, 8:37pm UTC](https://discourse.slicer.org/t/how-can-i-get-the-hounsfield-units-from-a-dicom-file-acquired-by-cb-the-purpose-of-knowing-this-it-this-is-to-analyze-the-bone-density-of-both-jaws-for-the-correct-planning-of-dental-implants-thank-you/14574/1 "2020-11-12T20:37:40Z")

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Operating system:  
Slicer version:  
Expected behavior:  
Actual behavior:

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**Author:** ![manjula](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manjula/32/80981_2.png) [@manjula](https://discourse.slicer.org/u/manjula)\
**Post date:** [November 12, 2020, 9:29pm UTC](https://discourse.slicer.org/t/how-can-i-get-the-hounsfield-units-from-a-dicom-file-acquired-by-cb-the-purpose-of-knowing-this-it-this-is-to-analyze-the-bone-density-of-both-jaws-for-the-correct-planning-of-dental-implants-thank-you/14574/2 "2020-11-12T21:29:30Z")

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If you move the mouse pointer to the area of interest, in the data probe you will see the HU unit for the point.

But i guess for your purpose you need to consider a region and average it to have a meaningful value. So go to segmentation and segment the area of interest. For your purpose, I guess a scissor tool would be best (fill inside, circle or rectangle, symmetric 2 mm ) and then use the segment statistic module (scalar volume statistics plugin - mean). This will give the mean HU value of the ROI you segment.