# Why the image dicom int16 cannot do the segmentation using PetTumorSegmentation Extension?

**URL:** <https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [May 11, 2022, 5:13am UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368 "2022-05-11T05:13:56Z")\
**Posts on this page:** 7\
**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:** [May 11, 2022, 5:13am UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/1 "2022-05-11T05:13:56Z")

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Dear all,

I have data set image dicom SPECT (link as attached). The type is int16. I want to apply the PetTumorSegmentation extension to do the volume segmentation.

But it cannot function well.

Anyone can help?

[https://drive.google.com/file/d/1deV8TerFMK8zPm3FoFLzovOQG\_UVtu10/view?usp=sharing](https://drive.google.com/file/d/1deV8TerFMK8zPm3FoFLzovOQG_UVtu10/view?usp=sharing)

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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:** [May 12, 2022, 2:44am UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/2 "2022-05-12T02:44:10Z")

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Most DICOM files are int16, so that should not cause any issue.

Which Slicer version are you using?

As I see, PETTumorSegmentation Extension was developed for Slicer-4.6 or around that time. We are now at Slicer-4.13, transitioning to Slicer-5.0. I would recommend to update the extension for current Slicer version. Try to contact the original extension developers first and if they don’t respond then we can guide you through how to do the update.

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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:** [May 12, 2022, 4:19pm UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/3 "2022-05-12T16:19:58Z")

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I Used 4.11 version. On the website is 4.11 version. How to get 4.13 version?

 ![Untitled](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/d/7d07092e00dd8f8c64257fb6d31d61b558e3e0fc.png)

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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:** [May 12, 2022, 6:14pm UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/4 "2022-05-12T18:14:07Z")

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> [@akmal871026](#):
>
> I Used 4.11 version.

You also said that you’ve tried the PETTumorSegmentation extension “But it cannot function well”.

Do you mean you installed the extension and something did not work as you expect? Was that with Slicer-4.11?

Or do you mean that you did not find PETTumorSegmentation in the extension manager?

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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:** [May 13, 2022, 2:07am UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/5 "2022-05-13T02:07:22Z")

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Yah…I mean PetTumorSegmentation was not function as well usually.

Before that, I used very well.

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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:** [May 13, 2022, 4:14am UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/6 "2022-05-13T04:14:33Z")

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Sorry, I’m confused. What do you mean by `PetTumorSegmentation was not function as well usually`?

Have you used PETTumorSegmentation extension? Using what Slicer versions?  
With which Slicer version it “functioned well” and with which Slicer version it did not function “as well”? What exactly it did not do correctly?

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<div class="post-metadata">

**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:** [May 16, 2022, 2:45pm UTC](https://discourse.slicer.org/t/why-the-image-dicom-int16-cannot-do-the-segmentation-using-pettumorsegmentation-extension/23368/7 "2022-05-16T14:45:34Z")

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I already used PetTumorSegmentation extension in 3D Slicer version 4.11. No problem have.

But just used that image, the PetTumorSegmentation cannot do the segmentation