# Pet Tumor Segmentation

**URL:** <https://discourse.slicer.org/t/pet-tumor-segmentation/17190>\
**Category:** Support\
**Tags:** registration, segmentation, dicom\
**Created:** [April 20, 2021, 12:50am UTC](https://discourse.slicer.org/t/pet-tumor-segmentation/17190 "2021-04-20T00:50:13Z")\
**Posts on this page:** 2\
**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:** [April 20, 2021, 12:50am UTC](https://discourse.slicer.org/t/pet-tumor-segmentation/17190/1 "2021-04-20T00:50:14Z")

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Hi Everyone,

Does anyone know what is the method that used in PET Tumor Segmentation tool? is it gradientwieght method? or otsu method? or adaptive method? or Fourier Surface method?

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**Author:** ![Andinet\_Enquobahrie](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/andinet_enquobahrie/32/75_2.png) [@Andinet\_Enquobahrie](https://discourse.slicer.org/u/Andinet_Enquobahrie)\
**Post date:** [April 20, 2021, 10:59am UTC](https://discourse.slicer.org/t/pet-tumor-segmentation/17190/2 "2021-04-20T10:59:14Z")

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Hi @akmal871026

If you are asking about the the following extension

[https://www.slicer.org/wiki/Documentation/Nightly/Extensions/PETTumorSegmentation](https://www.slicer.org/wiki/Documentation/Nightly/Extensions/PETTumorSegmentation)

Here is a paper that explains the algorithm

> **[Semiautomated segmentation of head and neck cancers in 18F-FDG PET scans: A...](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4874930/)**
>
> The purpose of this work was to develop, validate, and compare a highly computer-aided method for the segmentation of hot lesions in head and neck 18F-FDG PET scans.A semiautomated segmentation method was developed, which transforms the segmentation...

and here is the code repository

> **[QIICR/PETTumorSegmentation](https://github.com/QIICR/PETTumorSegmentation)**
>
> 3D Slicer Extension for PETTumorSegmentation. Contribute to QIICR/PETTumorSegmentation development by creating an account on GitHub.

-Andinet