# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=130

[Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md)

**Page:** 131

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## [Facing issue with using Volume Rendering](https://discourse.slicer.org/t/facing-issue-with-using-volume-rendering/32695)

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**Author:** [@Tondup\_Dolkar](https://discourse.slicer.org/u/Tondup_Dolkar)\
**Replies:** 3\
**Last updated:** [November 13, 2023, 8:28am UTC](https://discourse.slicer.org/t/facing-issue-with-using-volume-rendering/32695 "2023-11-13T08:28:06Z")

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Operating System: Windows Slicer version: 5.2.2 Hello Everyone, I am new to 3D Slicer. I am trying to obtain an ROI by using crop function of volume rendering. Whenever I click the show volume button, the 3D object ap…

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## [Save line profile as CSV file](https://discourse.slicer.org/t/save-line-profile-as-csv-file/32768)

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**Author:** [@Jonathan\_Mbewe](https://discourse.slicer.org/u/Jonathan_Mbewe)\
**Replies:** 2\
**Last updated:** [November 13, 2023, 2:45am UTC](https://discourse.slicer.org/t/save-line-profile-as-csv-file/32768 "2023-11-13T02:45:06Z")

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I’m running Slicer 5.4.0. I’ve just installed and updated the SandBox and SlicerRT extensions, but Line Profile does not appear as an option under ‘Modules’. Am I missing something?

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## [Merge implant position with cbct](https://discourse.slicer.org/t/merge-implant-position-with-cbct/32767)

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**Author:** [@dentopolis](https://discourse.slicer.org/u/dentopolis)\
**Replies:** 0\
**Last updated:** [November 13, 2023, 2:36am UTC](https://discourse.slicer.org/t/merge-implant-position-with-cbct/32767 "2023-11-13T02:36:44Z")

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I’ve positioned an implant in Exoplan but for legal documentation purposes I need to have CBCT with implant position in STL or DICOM. how can I do that? I have one file with implant only (STL) and CBCT DICOM.

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## [Quantitative analysis of deviation with superimposed dental arches](https://discourse.slicer.org/t/quantitative-analysis-of-deviation-with-superimposed-dental-arches/27377)

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**Author:** [@PaVo](https://discourse.slicer.org/u/PaVo)\
**Replies:** 1\
**Last updated:** [November 12, 2023, 11:47pm UTC](https://discourse.slicer.org/t/quantitative-analysis-of-deviation-with-superimposed-dental-arches/27377 "2023-11-12T23:47:52Z")

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Hello everyone I’m quite new to the slicer software, so please be kind to the rookie :smiley: I’m doing my master thesis in the field of orthodontic tooth movement. One of my tasks is to quantitatively analyze dental a…

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## [I cannot find the Sandbox extension](https://discourse.slicer.org/t/i-cannot-find-the-sandbox-extension/21745)

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**Author:** [@Kawtar\_Lakrad](https://discourse.slicer.org/u/Kawtar_Lakrad)\
**Replies:** 11\
**Last updated:** [February 16, 2022, 1:36am UTC](https://discourse.slicer.org/t/i-cannot-find-the-sandbox-extension/21745 "2022-02-16T01:36:02Z")

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Operating system: Windows 11 Slicer version: v4.11 Expected behavior: Find the sandbox extension Actual behavior: I can’t find the sandbox extension, although all the others are existing. I was wondering if there is …

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## [How to fix the populating font family aliases issue](https://discourse.slicer.org/t/how-to-fix-the-populating-font-family-aliases-issue/32739)

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**Author:** [@Koko000000000000000](https://discourse.slicer.org/u/Koko000000000000000)\
**Replies:** 2\
**Last updated:** [November 11, 2023, 5:14pm UTC](https://discourse.slicer.org/t/how-to-fix-the-populating-font-family-aliases-issue/32739 "2023-11-11T17:14:27Z")

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I just installed slicer on my MacbookPro that has an M2 chip, but I’m face with this problem Python 3.9.10 (main, Aug 19 2023, 07:11:06) \[Clang 14.0.6 (https://github.com/tru/llvm-release-build 686807a176470032c208f2 …

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## [Annotation Screenshot Window size](https://discourse.slicer.org/t/annotation-screenshot-window-size/32742)

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**Author:** [@jp\_jp\_jp](https://discourse.slicer.org/u/jp_jp_jp)\
**Replies:** 0\
**Last updated:** [November 11, 2023, 3:35pm UTC](https://discourse.slicer.org/t/annotation-screenshot-window-size/32742 "2023-11-11T15:35:46Z")

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Hi, I know I can make the red window isolated and change it size for Screeenshot, but is there a way to decide the size based on quantity, like input the height and width size, just like Paraview. I prefer no script, ju…

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## [Error loading freesurfer segmentation](https://discourse.slicer.org/t/error-loading-freesurfer-segmentation/32674)

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**Author:** [@Maurilio\_Genovese](https://discourse.slicer.org/u/Maurilio_Genovese)\
**Replies:** 6\
**Last updated:** [November 11, 2023, 2:53pm UTC](https://discourse.slicer.org/t/error-loading-freesurfer-segmentation/32674 "2023-11-11T14:53:49Z")

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Hi, I am facing the same problem. When I try to load a freesurfer segmentation (a standard aparc+aseg.mgz) on Ubuntu (either using the importer interface, the load volume interface or a slicerpython command) I will get t…

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## [Dose comparison parts in RT Slicer](https://discourse.slicer.org/t/dose-comparison-parts-in-rt-slicer/32735)

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**Author:** [@yasaman\_kiumarsi](https://discourse.slicer.org/u/yasaman_kiumarsi)\
**Replies:** 0\
**Last updated:** [November 11, 2023, 8:06am UTC](https://discourse.slicer.org/t/dose-comparison-parts-in-rt-slicer/32735 "2023-11-11T08:06:57Z")

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Operating system: 10 Slicer version: 5.4.0 Expected behavior: Actual behavior: How to fill the dose comparison parts in RT Slicer? I mean, how much should I place in Mask structure, Gamma volume and other parts?

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## [Issue in dose comparison in RT slicer](https://discourse.slicer.org/t/issue-in-dose-comparison-in-rt-slicer/32734)

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**Author:** [@yasaman\_kiumarsi](https://discourse.slicer.org/u/yasaman_kiumarsi)\
**Replies:** 0\
**Last updated:** [November 11, 2023, 7:05am UTC](https://discourse.slicer.org/t/issue-in-dose-comparison-in-rt-slicer/32734 "2023-11-11T07:05:33Z")

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Operating system: 10 Slicer version: 5.2.2 Expected behavior: Actual behavior: When I use RT Slicer from dose comparison, after clicking on dose comparison, the software closes after a few seconds and does not wor…

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## [How to segment intercoastal space?](https://discourse.slicer.org/t/how-to-segment-intercoastal-space/32666)

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**Author:** [@Lee\_Ho\_Jun](https://discourse.slicer.org/u/Lee_Ho_Jun)\
**Replies:** 2\
**Last updated:** [November 11, 2023, 6:22am UTC](https://discourse.slicer.org/t/how-to-segment-intercoastal-space/32666 "2023-11-11T06:22:16Z")

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Hi. I’ want to segment the intercoastal space. You can easily segment the ribs, but segmentation of the intercoastal space (olive color in the middle image) is quite difficult. The right image is a illustration to sh…

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## [Add data fails in linux (wayland).](https://discourse.slicer.org/t/add-data-fails-in-linux-wayland/27571)

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**Author:** [@umgpy](https://discourse.slicer.org/u/umgpy)\
**Replies:** 4\
**Last updated:** [November 10, 2023, 7:29pm UTC](https://discourse.slicer.org/t/add-data-fails-in-linux-wayland/27571 "2023-11-10T19:29:15Z")

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The data loading module fails after the first time and results in a blank window. Only way to fix it is to restart Slicer. My platform is Fedora 36 (linux) with wayland. Slicer version - Slicer-5.3.0-2023-01-28 I’m at…

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## [Sample Data Download failed](https://discourse.slicer.org/t/sample-data-download-failed/32720)

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**Author:** [@Paula1925](https://discourse.slicer.org/u/Paula1925)\
**Replies:** 2\
**Last updated:** [November 10, 2023, 6:17pm UTC](https://discourse.slicer.org/t/sample-data-download-failed/32720 "2023-11-10T18:17:10Z")

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Hi everyone! I’ve just wanted to learn how to use 3D Slicer, but unfortunately, I can’t download the Sample Data. I always receive this: Requesting download CT-cardio.seq.nrrd from https://github.com/Slicer/SlicerData…

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## [Slice removing from NIFTI images](https://discourse.slicer.org/t/slice-removing-from-nifti-images/32721)

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**Author:** [@Georgiy\_Avaliani](https://discourse.slicer.org/u/Georgiy_Avaliani)\
**Replies:** 0\
**Last updated:** [November 10, 2023, 3:39pm UTC](https://discourse.slicer.org/t/slice-removing-from-nifti-images/32721 "2023-11-10T15:39:45Z")

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Hey! I have a folder full of blank NIFTI-GZ (.gz) files that I would like to edit. I use them as masks for ai model training. I need to remove 1 slice (for example extreme) in every .gz file. How can I do it manually o…

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## [CT to Panoramic X-ray](https://discourse.slicer.org/t/ct-to-panoramic-x-ray/32718)

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**Author:** [@Miri\_Trope](https://discourse.slicer.org/u/Miri_Trope)\
**Replies:** 0\
**Last updated:** [November 10, 2023, 2:23pm UTC](https://discourse.slicer.org/t/ct-to-panoramic-x-ray/32718 "2023-11-10T14:23:30Z")

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Hello everyone, I’m curious about the process of creating a panoramic X-ray image from a CT scan (My data from this dataset)? Furthermore, I’m interested in understanding how to transform a CT scan into the correspondin…

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## [Not able to segment using TotalSegmentator](https://discourse.slicer.org/t/not-able-to-segment-using-totalsegmentator/32646)

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**Author:** [@Jaroslav\_Ptacek](https://discourse.slicer.org/u/Jaroslav_Ptacek)\
**Replies:** 10\
**Last updated:** [November 10, 2023, 2:10pm UTC](https://discourse.slicer.org/t/not-able-to-segment-using-totalsegmentator/32646 "2023-11-10T14:10:55Z")

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I tried every possible step I was able to find here, still it doesn’t work for me. This is what I receive: Importing torch… PyTorch 2.1.0+cpu imported successfully CUDA available: False Processing started Writing in…

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## [How to convert 4D fMRI images to a series of 3D images?](https://discourse.slicer.org/t/how-to-convert-4d-fmri-images-to-a-series-of-3d-images/32710)

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**Author:** [@Debapriya](https://discourse.slicer.org/u/Debapriya)\
**Replies:** 0\
**Last updated:** [November 10, 2023, 6:06am UTC](https://discourse.slicer.org/t/how-to-convert-4d-fmri-images-to-a-series-of-3d-images/32710 "2023-11-10T06:06:04Z")

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Hello, I am working with the ADHD200 dataset. It consists of anatomical and resting state fMRI images in NIFTI (nii.gz) format. The fMRI images are 4D images. These represent 3D image of the brain over a period of time…

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## [Slice slider step size](https://discourse.slicer.org/t/slice-slider-step-size/9940)

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**Author:** [@jpasadena](https://discourse.slicer.org/u/jpasadena)\
**Replies:** 6\
**Last updated:** [November 10, 2023, 2:42am UTC](https://discourse.slicer.org/t/slice-slider-step-size/9940 "2023-11-10T02:42:42Z")

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Operating system: Mac 10.14.6 Slicer version: 4.10.2 Expected behavior: Slide through slice 1 pixel at a time Actual behavior: Slides 10 pixels at a time Total newbie here. I just would like to step through my slices…

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## [The built-in "Advanced" adjustments on a 3D rendering](https://discourse.slicer.org/t/the-built-in-advanced-adjustments-on-a-3d-rendering/32595)

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**Author:** [@MikeN](https://discourse.slicer.org/u/MikeN)\
**Replies:** 3\
**Last updated:** [November 10, 2023, 2:38am UTC](https://discourse.slicer.org/t/the-built-in-advanced-adjustments-on-a-3d-rendering/32595 "2023-11-10T02:38:10Z")

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Hi guys, I’m new to 3D Slicer. I rendered a CT scan in 3D, using the various preset displays. I wanted to adjust the rendering, and I’m trying to understand the various adjustments. On the panel to the left of the visu…

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## [Slicer could not load NIfTI 2](https://discourse.slicer.org/t/slicer-could-not-load-nifti-2/32703)

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**Author:** [@Toru\_Hironaka](https://discourse.slicer.org/u/Toru_Hironaka)\
**Replies:** 2\
**Last updated:** [November 9, 2023, 11:28pm UTC](https://discourse.slicer.org/t/slicer-could-not-load-nifti-2/32703 "2023-11-09T23:28:11Z")

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My Slicer version: 5.2.2 r31382. I could load NIfTI-1 file in Slicer, but I could not load my NIfTI-2 file in Slicer. Is Slicer does not support NIfTI-2 file format?

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## [Calculating cross section on a set plane](https://discourse.slicer.org/t/calculating-cross-section-on-a-set-plane/32664)

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**Author:** [@AKue](https://discourse.slicer.org/u/AKue)\
**Replies:** 6\
**Last updated:** [November 9, 2023, 7:50pm UTC](https://discourse.slicer.org/t/calculating-cross-section-on-a-set-plane/32664 "2023-11-09T19:50:01Z")

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Hello! I have a segmentation (here in blue) and I would like to calculate the cross section with a preset plane. Is there a quick way to do so?

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## [How to write the code for resample in 3D slicer](https://discourse.slicer.org/t/how-to-write-the-code-for-resample-in-3d-slicer/32693)

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**Author:** [@Chuan](https://discourse.slicer.org/u/Chuan)\
**Replies:** 1\
**Last updated:** [November 9, 2023, 7:38pm UTC](https://discourse.slicer.org/t/how-to-write-the-code-for-resample-in-3d-slicer/32693 "2023-11-09T19:38:02Z")

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Hi all, Does anyone know what is the correct code for resampling and resave the volume file as mhd format? Basically, what I have is a nrrd file named disp, a reference nrrd file named ref, and a tranform file named tr…

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## [Create a new coordinate system for an MRI, based on a defined plane](https://discourse.slicer.org/t/create-a-new-coordinate-system-for-an-mri-based-on-a-defined-plane/32694)

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**Author:** [@Marina](https://discourse.slicer.org/u/Marina)\
**Replies:** 0\
**Last updated:** [November 9, 2023, 4:38pm UTC](https://discourse.slicer.org/t/create-a-new-coordinate-system-for-an-mri-based-on-a-defined-plane/32694 "2023-11-09T16:38:27Z")

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Hi! I have two MRIs of the lower jaw (“before” and “after” treatment), that I’ve successfully aligned and overlayed with the Registration and Transformation tools. I also added a common Plane on these MRIs. What I need…

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## [I am trying to infer from a model in monai label using 3DSlicer but I am running out of GPU memory](https://discourse.slicer.org/t/i-am-trying-to-infer-from-a-model-in-monai-label-using-3dslicer-but-i-am-running-out-of-gpu-memory/32555)

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**Author:** [@Carl\_alv](https://discourse.slicer.org/u/Carl_alv)\
**Replies:** 8\
**Last updated:** [November 9, 2023, 4:38pm UTC](https://discourse.slicer.org/t/i-am-trying-to-infer-from-a-model-in-monai-label-using-3dslicer-but-i-am-running-out-of-gpu-memory/32555 "2023-11-09T16:38:05Z")

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I am using an AWS g5.12xlarge instance. This instance has 4 GPUs with a total of 96 GB of memory. Training works very well and all GPUs get utilised (checked using nvidia-smi, however for inference, I get an error. Unfo…

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## [3d slicer in Orthodontic field](https://discourse.slicer.org/t/3d-slicer-in-orthodontic-field/32686)

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**Author:** [@Mah](https://discourse.slicer.org/u/Mah)\
**Replies:** 0\
**Last updated:** [November 9, 2023, 2:48am UTC](https://discourse.slicer.org/t/3d-slicer-in-orthodontic-field/32686 "2023-11-09T02:48:26Z")

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hello, i want to use 3D slicer for Orthodontic purposes, i want to measure the surface dimensional accuracy between two stl files data. the first file is a 3d scanned dental model, the other file is a 3d scanned clear …

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## [Is there a way to register 2D+t cines?](https://discourse.slicer.org/t/is-there-a-way-to-register-2d-t-cines/27510)

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**Author:** [@Gening\_Dong](https://discourse.slicer.org/u/Gening_Dong)\
**Replies:** 4\
**Last updated:** [February 3, 2023, 7:55pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-register-2d-t-cines/27510 "2023-02-03T19:55:14Z")

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Hi, I’ve been using sequence registration to register image stacks and it works well! Now I have a series of 2D+t ultrasound cines (DICOM files). Since it’s 2D+t, I’m not able to import those files as volumes and perfor…

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## [Valve motion for CFD/FSI simulation](https://discourse.slicer.org/t/valve-motion-for-cfd-fsi-simulation/25450)

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**Author:** [@Gening\_Dong](https://discourse.slicer.org/u/Gening_Dong)\
**Replies:** 1\
**Last updated:** [September 28, 2022, 4:09am UTC](https://discourse.slicer.org/t/valve-motion-for-cfd-fsi-simulation/25450 "2022-09-28T04:09:14Z")

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Hi all, I’m trying to run CFD/FSI based on a 4D longitude ultrasound dataset. I try to segment the heart (especially the outflow tract) and used the module Transform to apply transform sequence to the segmentation. In a…

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## [Export segmentation with multiple labels as nifti doesn't work](https://discourse.slicer.org/t/export-segmentation-with-multiple-labels-as-nifti-doesnt-work/32677)

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**Author:** [@lvdw](https://discourse.slicer.org/u/lvdw)\
**Replies:** 3\
**Last updated:** [November 8, 2023, 5:08pm UTC](https://discourse.slicer.org/t/export-segmentation-with-multiple-labels-as-nifti-doesnt-work/32677 "2023-11-08T17:08:02Z")

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Hi, System: Linux Ubuntu Slicer: 5.2.2 Input: nifti (both source volume and segmentation map) So I have some sort of lesion map (nifti) I want to edit. This lesion map consists of non-overlapping segmentations rangin…

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## [ALPACA & segmentation](https://discourse.slicer.org/t/alpaca-segmentation/32503)

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**Author:** [@Michal\_Graitzer](https://discourse.slicer.org/u/Michal_Graitzer)\
**Replies:** 3\
**Last updated:** [November 8, 2023, 3:23pm UTC](https://discourse.slicer.org/t/alpaca-segmentation/32503 "2023-11-08T15:23:21Z")

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Operating system: windows Slicer version:5.2.1 Does the use of “Alpaca” require prior segmentation?

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## [I can not seem to export to STL](https://discourse.slicer.org/t/i-can-not-seem-to-export-to-stl/32672)

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**Author:** [@Gunther\_Streit](https://discourse.slicer.org/u/Gunther_Streit)\
**Replies:** 0\
**Last updated:** [November 8, 2023, 2:08pm UTC](https://discourse.slicer.org/t/i-can-not-seem-to-export-to-stl/32672 "2023-11-08T14:08:56Z")

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Hi I am new to this (= and Have a question ,When I have finished with my work and want to export to STL it does not give me that option , is there a extension or a step im missing? I get Nrrd etc but not STL.

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