# PET segmentation to CT DICOM

**URL:** <https://discourse.slicer.org/t/pet-segmentation-to-ct-dicom/23555>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [May 24, 2022, 12:39pm UTC](https://discourse.slicer.org/t/pet-segmentation-to-ct-dicom/23555 "2022-05-24T12:39:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Lieke\_2306](https://avatars.discourse-cdn.com/v4/letter/l/dbc845/32.png) [@Lieke\_2306](https://discourse.slicer.org/u/Lieke_2306)\
**Post date:** [May 24, 2022, 12:39pm UTC](https://discourse.slicer.org/t/pet-segmentation-to-ct-dicom/23555/1 "2022-05-24T12:39:16Z")

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Dear all,  
I am fairly new to 3D Slicer so I am still figuring things out, but I hope you can help me. I have some data consisting of individual PET and CT scans. On the PET scans, I segmentated a lesion using PET-IndiC, and saved them as **nrrd** -files. Now, I want to apply the same segmentation (basically copy) onto the CT-scans. However, these CT-scans have a different FOV, and thus do not lead to the same segmentation. I want to use both segmentation for radiomics feature extraction, can someone help me out 🙂 ? Thanks in advance!