# Convert .NRRD segment/contour to Dicom structure.  

**URL:** <https://discourse.slicer.org/t/convert-nrrd-segment-contour-to-dicom-structure/8938>\
**Category:** Support\
**Created:** [October 29, 2019, 11:48am UTC](https://discourse.slicer.org/t/convert-nrrd-segment-contour-to-dicom-structure/8938 "2019-10-29T11:48:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![John.ryan3](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/john.ryan3/32/5022_2.png) [@John.ryan3](https://discourse.slicer.org/u/John.ryan3)\
**Post date:** [October 29, 2019, 11:48am UTC](https://discourse.slicer.org/t/convert-nrrd-segment-contour-to-dicom-structure/8938/1 "2019-10-29T11:48:18Z")

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Operating system:Windows 7 Enterprise  
Slicer version:4.11.0  
Expected behavior:  
Actual behavior:

I have an original CT in Dicom format  
I have the same CT in .NRRD format  
I have a segmentation/contour in .NRRD format

I want the segmentation/contour in Dicom format with the same scale and orientation as original CT

When I load CT + segmentation/contour in NRRD format the scale and orientation are incorrect.

I can fix the orientation by applying a flip transformation

I don’t know how to create a scale transformation

Best wishes,  
John

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [October 29, 2019, 11:49am UTC](https://discourse.slicer.org/t/convert-nrrd-segment-contour-to-dicom-structure/8938/2 "2019-10-29T11:49:26Z")

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A post was merged into an existing topic: [NRRD contour to Dicom](https://discourse.slicer.org/t/nrrd-contour-to-dicom/8936)

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [October 29, 2019, 11:49am UTC](https://discourse.slicer.org/t/convert-nrrd-segment-contour-to-dicom-structure/8938/3 "2019-10-29T11:49:27Z")

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