# Can I update the contours on a DICOM structure file?
**URL:** https://discourse.slicer.org/t/can-i-update-the-contours-on-a-dicom-structure-file/17938
**Category:** Support
**Tags:** segmentation, dicom
**Created:** [June 3, 2021, 7:04pm UTC](https://discourse.slicer.org/t/can-i-update-the-contours-on-a-dicom-structure-file/17938 "2021-06-03T19:04:08Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Kayla](https://discourse.slicer.org/u/Kayla)
#### Post date: [June 3, 2021, 7:04pm UTC](https://discourse.slicer.org/t/can-i-update-the-contours-on-a-dicom-structure-file/17938/1 "2021-06-03T19:04:08Z")
Hi everyone, I am new to this software and I am wondering if I can achieve the following:
I’ve loaded a DICOM structure file (made in Python) with their respective CT images of a phantom into 3D slicer using SlicerRT extension. Some of the contours I made need adjusting and I’m wondering if 3D slicer can overwrite the new segmentations over the old triplet coordinates in the DICOM RT structure file?
Thank you in advance.
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [June 3, 2021, 7:33pm UTC](https://discourse.slicer.org/t/can-i-update-the-contours-on-a-dicom-structure-file/17938/2 "2021-06-03T19:33:48Z")
Yes, sure this should be no problem at all. This is why DICOM RTSTRUCT import/export features in SlicerRT extension and the Segment Editor module were developed for.
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### Author:  [@Kayla](https://discourse.slicer.org/u/Kayla)
#### Post date: [June 3, 2021, 11:11pm UTC](https://discourse.slicer.org/t/can-i-update-the-contours-on-a-dicom-structure-file/17938/3 "2021-06-03T23:11:49Z")
Thanks for your reply. That’s brilliant. I right clicked “Export to DICOM” in the study module, clicked RT as type and exported. It did the trick 🙂