# Stacking CT images

**URL:** <https://discourse.slicer.org/t/stacking-ct-images/1176>\
**Category:** Support\
**Created:** [October 5, 2017, 1:35am UTC](https://discourse.slicer.org/t/stacking-ct-images/1176 "2017-10-05T01:35:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jbassein](https://avatars.discourse-cdn.com/v4/letter/j/ea666f/32.png) [@jbassein](https://discourse.slicer.org/u/jbassein)\
**Post date:** [October 5, 2017, 1:35am UTC](https://discourse.slicer.org/t/stacking-ct-images/1176/1 "2017-10-05T01:35:50Z")

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Operating system: Windows 7 enterprise  
Slicer version: 4.6  
Expected behavior: Stacking images  
Actual behavior: When I load a series of CT images into slicer, they do not seem to automatically stack into one scrollable image that I can move up and down through. How do I accomplish this?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [October 5, 2017, 12:31pm UTC](https://discourse.slicer.org/t/stacking-ct-images/1176/2 "2017-10-05T12:31:37Z")

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Start by going through the tutorial with the sample data:

[https://www.slicer.org/wiki/Documentation/Nightly/Training#Slicer4\_3D\_Visualization\_of\_DICOM\_images\_for\_Radiology\_Applications](https://www.slicer.org/wiki/Documentation/Nightly/Training#Slicer4_3D_Visualization_of_DICOM_images_for_Radiology_Applications)

If the same steps don’t work for your own data, try the suggestions in the FAQ:

[https://www.slicer.org/wiki/Documentation/Nightly/FAQ/DICOM](https://www.slicer.org/wiki/Documentation/Nightly/FAQ/DICOM)

Then let us know if there are still outstanding issues.

-Steve

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**Author:** ![jbassein](https://avatars.discourse-cdn.com/v4/letter/j/ea666f/32.png) [@jbassein](https://discourse.slicer.org/u/jbassein)\
**Post date:** [October 5, 2017, 8:56pm UTC](https://discourse.slicer.org/t/stacking-ct-images/1176/3 "2017-10-05T20:56:37Z")

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Hi Steve!!!

This is great. Thank you so much for recommending this tutorial. It really  
helped load my images properly and teach me how to do basic 3D rendering. I  
am trying to go through the lung CT tutorial, however there seems to be  
some data missing from the 3DVisualizationDICOM\_part2  
[https://www.slicer.org/w/images/0/0b/3DVisualization\_DICOM\_images\_part2.zip](https://www.slicer.org/w/images/0/0b/3DVisualization_DICOM_images_part2.zip).  
Whenever I try to load the dataset4\_chest I do not see any patient samples  
or visual images. I looked through the file and it seems that most of the  
corresponding samples images have disappeared. Could you please check to  
see if the link is broken or maybe there is something wrong with the linked  
to the file?

Thanks so much!!!

Jed

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<div class="post-metadata">

**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [October 5, 2017, 9:19pm UTC](https://discourse.slicer.org/t/stacking-ct-images/1176/4 "2017-10-05T21:19:27Z")

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Hi Jed - not sure what the issue is - when I load the LungSegments\_Scene.mrb with 4.6 and with a recent nightly build everything looks as expected.

Are you sure you are dragging the .mrb file into Slicer and not the containing directory? (If you drag the directory it tries to open as DICOM by default unless you switch to “Any Data”).

HTH,  
Steve

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**Author:** ![jbassein](https://avatars.discourse-cdn.com/v4/letter/j/ea666f/32.png) [@jbassein](https://discourse.slicer.org/u/jbassein)\
**Post date:** [October 5, 2017, 9:32pm UTC](https://discourse.slicer.org/t/stacking-ct-images/1176/5 "2017-10-05T21:32:48Z")

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Hi Steve!!!

Yes that was exactly the problem. I was dragging the directory in rather  
than the file. I dragged the file in and it seems to be working fine.  
Thanks so much for your help and support!

Jed