# New Extension: SlicerFreeSurfer

**URL:** <https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751>\
**Category:** Support\
**Tags:** feature, freesurfer\
**Created:** [July 27, 2020, 9:07pm UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751 "2020-07-27T21:07:29Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [July 27, 2020, 9:07pm UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751/1 "2020-07-27T21:07:29Z")

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We have added a new extension called SlicerFreeSurfer to the latest Slicer preview releases (4.11).  
This exension takes over handling FreeSurfer models/scalar overlay import from the 3D Slicer core, and adds support for importing FreeSurfer segmentations

FreeSurfer files can be dragged + dropped into Slicer, or users can use the FreeSurfer Importer module can to navigate and import many files from a FreeSurfer subject directory. Models imported from FreeSurfer can now also be transformed into the correct coordinate system by aligning them to a corresponding reference image.

[![](https://img.youtube.com/vi/v0rGbno4h2M/hqdefault.jpg "Import FreeSurfer subjects into 3D Slicer") ](https://www.youtube.com/watch?v=v0rGbno4h2M)

Future plans include:

- Add module for exporting files in FreeSurfer format ([Add module to handle export of files to FreeSurfer formats · Issue #7 · PerkLab/SlicerFreeSurfer · GitHub](https://github.com/PerkLab/SlicerFreeSurfer/issues/7))
- Streamline user interface ([FreeSurferImporter: Streamline user interface · Issue #6 · PerkLab/SlicerFreeSurfer · GitHub](https://github.com/PerkLab/SlicerFreeSurfer/issues/6))

Any comments, feedback, suggestions are welcome.

Development was funded in part by NIH grant R01MH112748 and CANARIE’s Research Software Program.

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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:** [August 27, 2020, 3:09am UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751/2 "2020-08-27T03:09:04Z")

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A post was split to a new topic: [How to load FreeSurfer surface files in correct position using Python script](https://discourse.slicer.org/t/how-to-load-freesurfer-surface-files-in-correct-position-using-python-script/13183)

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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:** [February 11, 2021, 7:42pm UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751/3 "2021-02-11T19:42:07Z")

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3 posts were split to a new topic: [Parts of a module user interface are unreadable in dark mode on macOS](https://discourse.slicer.org/t/parts-of-a-module-user-interface-are-unreadable-in-dark-mode-on-macos/15956)

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**Author:** ![Kae1](https://avatars.discourse-cdn.com/v4/letter/k/b5a626/32.png) [@Kae1](https://discourse.slicer.org/u/Kae1)\
**Post date:** [March 8, 2023, 5:36am UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751/4 "2023-03-08T05:36:32Z")

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Hi Kyle,

Can you point me in the direction on information on how to add this SlicerFreeSurfer extension to 3DSlicer? I am new to 3dSlicer use and am not sure how to do this. I have added other extensions for other software to 3DSlicer through Slicer\>edit/Applications & Settings/ Modules/ \>add module. However this doesn’t seem to work for the SlicerFreeSurfer extension files I downloaded from Github.

My main issue to getting lh.pial and lh.white files created in FreeSurfer into 3dSlicer. Drag and drop just gives ‘unable to load’ error messages. So, any advice on this would also be great. I’m hoping that the SlicerFreeSurfer extension will help with this.

Thank in advance!

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [March 8, 2023, 5:59am UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751/5 "2023-03-08T05:59:57Z")

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Why are you trying to manually install it?

Go to **View-\>Extension Manager** (or CTRL/CMD + 4), click **Install Extension** tab, type SlicerFreeSurfer in the search box (or scroll down the list of all available extensions), then click **Install** and restart slicer for changes to take effect?

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/1/41c8566f0efac4b392078a53c04e9a29b66991bb.png)

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<div class="post-metadata">

**Author:** ![Kae1](https://avatars.discourse-cdn.com/v4/letter/k/b5a626/32.png) [@Kae1](https://discourse.slicer.org/u/Kae1)\
**Post date:** [March 8, 2023, 9:59pm UTC](https://discourse.slicer.org/t/new-extension-slicerfreesurfer/12751/6 "2023-03-08T21:59:29Z")

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Thanks,

I wasn’t aware SlicerFreeSurfer was able to be installed in that way. It seems to work fine and I am able to drag and drop pial and white matter files into Slicer.  
Much appreicated .

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