# How to visualize \*.voi file in slicer ?

**URL:** https://discourse.slicer.org/t/how-to-visualize-voi-file-in-slicer/7238
**Category:** Support
**Tags:** segmentation, extensions-manager
**Created:** [June 19, 2019, 1:43pm UTC](https://discourse.slicer.org/t/how-to-visualize-voi-file-in-slicer/7238 "2019-06-19T13:43:29Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![agatte](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/agatte/32/16712_2.png) [@agatte](https://discourse.slicer.org/u/agatte)
#### Post date: [June 19, 2019, 1:43pm UTC](https://discourse.slicer.org/t/how-to-visualize-voi-file-in-slicer/7238/1 "2019-06-19T13:43:29Z")

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Hello,  
I am just beginner in slicer. I have result of pet segmentation saved in voi file.  
Is it possible to visualize VOI file in slicer. I mean overlay of voi &pet scan.  
I would appreciate for any help info.

Best,  
agatte

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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: [June 19, 2019, 2:08pm UTC](https://discourse.slicer.org/t/how-to-visualize-voi-file-in-slicer/7238/2 "2019-06-19T14:08:50Z")

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What is a .voi file? What software generates it? You could consider segmenting the PET image in Slicer’s [Segment Editor module](https://slicer.readthedocs.io/en/latest/user_guide/module_segmenteditor.html) instead.

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### Author: ![minxiang83](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/minxiang83/32/16308_2.png) [@minxiang83](https://discourse.slicer.org/u/minxiang83)
#### Post date: [August 16, 2022, 3:29am UTC](https://discourse.slicer.org/t/how-to-visualize-voi-file-in-slicer/7238/3 "2022-08-16T03:29:54Z")

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Hi @lassoan ,  
In my case, I have some Volumes of Interest (VOI) files with point coordinates drawn by [POMD software](https://www.pmod.com/web/). Can I use 3D Slicer to open the VOI files?

[Example Data.](https://drive.google.com/file/d/1LouALSMyk54T9iJCaxlSxCahzUO-TUva/view?usp=sharing)

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### Author: ![Ching-Sheng](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ching-sheng/32/79083_2.png) [@Ching-Sheng](https://discourse.slicer.org/u/Ching-Sheng)
#### Post date: [January 11, 2025, 5:20pm UTC](https://discourse.slicer.org/t/how-to-visualize-voi-file-in-slicer/7238/4 "2025-01-11T17:20:14Z")

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Hello agatte:

I face the same question as you did before.  
Please let me know if you would have the answer.  
Thank in advance

Ching-Sheng