# Gantry tilt correction in CT DICOMS

**URL:** <https://discourse.slicer.org/t/gantry-tilt-correction-in-ct-dicoms/19443>\
**Category:** Support\
**Tags:** dicom\
**Created:** [August 31, 2021, 6:11pm UTC](https://discourse.slicer.org/t/gantry-tilt-correction-in-ct-dicoms/19443 "2021-08-31T18:11:25Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Sharada](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@Sharada](https://discourse.slicer.org/u/Sharada)\
**Post date:** [August 31, 2021, 7:00pm UTC](https://discourse.slicer.org/t/gantry-tilt-correction-in-ct-dicoms/19443/3 "2021-08-31T19:00:48Z")

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Hi Andras,

I had enabled that before I attempted to load the DICOM images. I followed your comment [here](https://discourse.slicer.org/t/actual-size-of-stl-models/5005/17).

1. When I load my images through the “DCM” module, I cannot even see my image volumes. I am not sure why this is happening? But this creates a transform which allows me to go to ‘Transform Hierarchy \> Harden Transform’
2. When I load it through “Data” module, I see the image volumes, but the view is not corrected. And this does not create a transform.  
Please see below - the following image was obtained at a gantry tilt of +21.5 degrees.  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/1/f1b7665c4cf2868cfc25c500b2d9e3bbb45bcfa5.jpeg)

Please advise!

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