# PET DICOM extension

**URL:** <https://discourse.slicer.org/t/pet-dicom-extension/41521>\
**Category:** Support\
**Tags:** dicom\
**Created:** [February 6, 2025, 3:22am UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521 "2025-02-06T03:22:37Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![akmal871026](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/akmal871026/32/11642_2.png) [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Post date:** [February 6, 2025, 3:22am UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/1 "2025-02-06T03:22:37Z")

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Hello,

There is no PetDicom Extension in version 5.8.0.

I TRIED TO INSTALL FROM FOLDER, BUT error pop up

 ![Capture](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/3/e3211ff74d725b545d5ce08813dcd3d3973300a5.png)

THE EXTENSION CAN DOWNLOADED HERE  
[https://github.com/QIICR/Slicer-PETDICOMExtension](https://github.com/QIICR/Slicer-PETDICOMExtension)

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [February 6, 2025, 3:57am UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/2 "2025-02-06T03:57:52Z")

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@fedorov can you or someone you know for this project fix the build error for this extension? If no longer maintained and it is broken should the extension be archived to no longer be in the Slicer extension index?

> **[CDash](https://slicer.cdash.org/viewBuildError.php?buildid=3679199)**
>
> CDash is an open source, web-based software testing server. CDash aggregates, analyzes, and displays the
> results of software testing processes submitted from clients located around the world. CDash is a part of a
> ...

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**Author:** ![fedorov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/fedorov/32/14_2.png) [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Post date:** [February 6, 2025, 7:30pm UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/3 "2025-02-06T19:30:18Z")

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@jamesobutler this must be something to do with the extensions build system. The extension has not been modified in a very long time.

Found this related discussion: [SlicerRT build fails with new DCMTK - #5 by cpinter](https://discourse.slicer.org/t/slicerrt-build-fails-with-new-dcmtk/40177/5).

What should I make out of these cdash errors?

[https://slicer.cdash.org/viewBuildError.php?buildid=3680439](https://slicer.cdash.org/viewBuildError.php?buildid=3680439)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/5/453851e579f64a75244874918899a72562a4d758.png)

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [February 6, 2025, 7:33pm UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/4 "2025-02-06T19:33:06Z")

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> [@fedorov](#):
>
> The extension has not been modified in a very long time.

If the extension has not been modified in a very long time then it wouldn’t surprise me that changes to latest Slicer core dependencies or C++ standards results in the extension no longer building. Building the extension and issuing appropriate fixes would be necessary.

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**Author:** ![fedorov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/fedorov/32/14_2.png) [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Post date:** [February 6, 2025, 7:34pm UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/5 "2025-02-06T19:34:16Z")

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Are there any dev guidances about updating extensions to account for any such changes?

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [February 6, 2025, 7:44pm UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/6 "2025-02-06T19:44:54Z")

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The SlicerRT post that you found seems relevant so I would suggest following the same resolution posted in that thread to PET DICOM. I assume it is also doing some linking against DCMTK?

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**Author:** ![Mik](https://avatars.discourse-cdn.com/v4/letter/m/958977/32.png) [@Mik](https://discourse.slicer.org/u/Mik)\
**Post date:** [February 7, 2025, 11:16am UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/7 "2025-02-07T11:16:13Z")

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Greetings,

I’ve made a [PR](https://github.com/QIICR/Slicer-PETDICOMExtension/pull/24). That’s a fix, similar to the SlicerRT linking problem, which appeared after DCMTK-3.6.8 update.

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**Author:** ![fedorov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/fedorov/32/14_2.png) [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Post date:** [February 7, 2025, 2:41pm UTC](https://discourse.slicer.org/t/pet-dicom-extension/41521/8 "2025-02-07T14:41:05Z")

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Thank you @Mik! Hope this does it - I merged your PR.