# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=117

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

**Page:** 118

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## [Radiomics Module](https://discourse.slicer.org/t/radiomics-module/33976)

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**Author:** [@Francesco\_Mariotti1](https://discourse.slicer.org/u/Francesco_Mariotti1)\
**Replies:** 2\
**Last updated:** [January 25, 2024, 5:05pm UTC](https://discourse.slicer.org/t/radiomics-module/33976 "2024-01-25T17:05:44Z")

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Good Morning, can someone please help me find a working version of radiomics module for 3D Slicer 5.4.0? I cannot find it anymore in the available modules to be downloaded.

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## [VMTK centerline extraction](https://discourse.slicer.org/t/vmtk-centerline-extraction/21577)

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**Author:** [@Pavel\_Zhabyeyev](https://discourse.slicer.org/u/Pavel_Zhabyeyev)\
**Replies:** 2\
**Last updated:** [January 24, 2022, 10:18pm UTC](https://discourse.slicer.org/t/vmtk-centerline-extraction/21577 "2022-01-24T22:18:36Z")

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I have used VMTK centerline extraction to extract centerline from the example aorta with manually placed 2 points. However, the procedure does not work for multiple point (\>2) on the same aorta example from the library.…

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## [VMTK Extract Centerline extracts centerline curves with both a curve and a straight line](https://discourse.slicer.org/t/vmtk-extract-centerline-extracts-centerline-curves-with-both-a-curve-and-a-straight-line/33954)

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**Author:** [@ruili](https://discourse.slicer.org/u/ruili)\
**Replies:** 2\
**Last updated:** [January 25, 2024, 4:17pm UTC](https://discourse.slicer.org/t/vmtk-extract-centerline-extracts-centerline-curves-with-both-a-curve-and-a-straight-line/33954 "2024-01-25T16:17:26Z")

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Hello! I have been using the Extract Centerline module from the SlicerVMTK extension to extract the centerline of a vessel struction. The extracted ‘Centerline Model’ is relatively accurate, however, the ‘Centerline Curv…

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## [Unable to save .mrb bundle - Failed to write LumpNav scene. ](https://discourse.slicer.org/t/unable-to-save-mrb-bundle-failed-to-write-lumpnav-scene/33966)

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**Author:** [@Hanad\_Elmi](https://discourse.slicer.org/u/Hanad_Elmi)\
**Replies:** 1\
**Last updated:** [January 25, 2024, 2:45pm UTC](https://discourse.slicer.org/t/unable-to-save-mrb-bundle-failed-to-write-lumpnav-scene/33966 "2024-01-25T14:45:23Z")

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I am not able to save the scene due to this error. Has anyone ever encountered it. I tried saving my file in different locations, but nothing has changed. Thank you in advance for any help!

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## [Support of M3D DICOM modality in QuantitativeReporting 3D Slicer extension](https://discourse.slicer.org/t/support-of-m3d-dicom-modality-in-quantitativereporting-3d-slicer-extension/33958)

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**Author:** [@Cosmin\_Ciausu](https://discourse.slicer.org/u/Cosmin_Ciausu)\
**Replies:** 1\
**Last updated:** [January 25, 2024, 2:14pm UTC](https://discourse.slicer.org/t/support-of-m3d-dicom-modality-in-quantitativereporting-3d-slicer-extension/33958 "2024-01-25T14:14:42Z")

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Hi everyone, We are excited to announce the addition of M3D DICOM modality into the 3D Slicer QuantitativeReporting extension. DICOM M3D is a somewhat unusual modality, which corresponds to DICOM Encapsulated STL. STL …

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## [95% Hausdorff distance 0](https://discourse.slicer.org/t/95-hausdorff-distance-0/33928)

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**Author:** [@Young\_Wang](https://discourse.slicer.org/u/Young_Wang)\
**Replies:** 2\
**Last updated:** [January 25, 2024, 11:00am UTC](https://discourse.slicer.org/t/95-hausdorff-distance-0/33928 "2024-01-25T11:00:08Z")

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Hi there, I’m working on an imaging fusion project that combines a small-FOV image with finer details and a large-FOV image with better description of surrounding anatomical structures. To evaluate the performance ( re…

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## [2D position different from 3D position](https://discourse.slicer.org/t/2d-position-different-from-3d-position/33955)

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**Author:** [@Nicolas\_Tempier](https://discourse.slicer.org/u/Nicolas_Tempier)\
**Replies:** 2\
**Last updated:** [January 25, 2024, 8:32am UTC](https://discourse.slicer.org/t/2d-position-different-from-3d-position/33955 "2024-01-25T08:32:58Z")

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Hello 3D Slicer community, As you can see on the screen capture, the placement of my images is different from 2D to 3D … i only have thoses elements on the scene and in the 2D view they overlap but not in the 3D vie…

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## [Quantitative analysis: Bone Mineral Density](https://discourse.slicer.org/t/quantitative-analysis-bone-mineral-density/1219)

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**Author:** [@blaked93](https://discourse.slicer.org/u/blaked93)\
**Replies:** 5\
**Last updated:** [January 25, 2024, 1:27am UTC](https://discourse.slicer.org/t/quantitative-analysis-bone-mineral-density/1219 "2024-01-25T01:27:33Z")

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Hello, Is it possible to measure BMD using slicer? I’ve been unsuccessful thus far. Thanks

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## [Create a plane or curved surface and save as STL](https://discourse.slicer.org/t/create-a-plane-or-curved-surface-and-save-as-stl/33614)

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**Author:** [@johny723](https://discourse.slicer.org/u/johny723)\
**Replies:** 17\
**Last updated:** [January 24, 2024, 8:40pm UTC](https://discourse.slicer.org/t/create-a-plane-or-curved-surface-and-save-as-stl/33614 "2024-01-24T20:40:27Z")

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How do I create a plane or a bezier surface and export it as STL? Thanks.

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## [Hi i am new , i am using 1st time 3D slicer i dont know how we use this app , can you provide me any link of youtube video where i can learn how we use 3d slicer , actually i need lung vessels model for my research](https://discourse.slicer.org/t/hi-i-am-new-i-am-using-1st-time-3d-slicer-i-dont-know-how-we-use-this-app-can-you-provide-me-any-link-of-youtube-video-where-i-can-learn-how-we-use-3d-slicer-actually-i-need-lung-vessels-model-for-my-research/33948)

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**Author:** [@Vikram](https://discourse.slicer.org/u/Vikram)\
**Replies:** 1\
**Last updated:** [January 24, 2024, 6:42pm UTC](https://discourse.slicer.org/t/hi-i-am-new-i-am-using-1st-time-3d-slicer-i-dont-know-how-we-use-this-app-can-you-provide-me-any-link-of-youtube-video-where-i-can-learn-how-we-use-3d-slicer-actually-i-need-lung-vessels-model-for-my-research/33948 "2024-01-24T18:42:57Z")

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please help me how i can use 3d slicer i, i need lung vessels model

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## [Error in drawing 2D ultrasound ROi with slicer](https://discourse.slicer.org/t/error-in-drawing-2d-ultrasound-roi-with-slicer/33941)

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**Author:** [@Nancy](https://discourse.slicer.org/u/Nancy)\
**Replies:** 1\
**Last updated:** [January 24, 2024, 3:56pm UTC](https://discourse.slicer.org/t/error-in-drawing-2d-ultrasound-roi-with-slicer/33941 "2024-01-24T15:56:36Z")

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When I finished sketching the ROI of an ultrasound image and then opened another patient’s image to prepare for sketching, I found that the ROI that had just been sketched appeared on another patient’s image. Where is th…

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## [Problems with getNode in a for loop](https://discourse.slicer.org/t/problems-with-getnode-in-a-for-loop/33925)

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**Author:** [@paleomariomm](https://discourse.slicer.org/u/paleomariomm)\
**Replies:** 2\
**Last updated:** [January 24, 2024, 8:10am UTC](https://discourse.slicer.org/t/problems-with-getnode-in-a-for-loop/33925 "2024-01-24T08:10:23Z")

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I have a for loop that: load DICOM files in subfolders show volume rendering of each CT segment using thresholding save in ply format The way I develop the for loop is: import os from DICOMLib import DICOMUtils your…

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## [Cannot import SimpleITK in build-in python](https://discourse.slicer.org/t/cannot-import-simpleitk-in-build-in-python/33900)

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**Author:** [@schcat](https://discourse.slicer.org/u/schcat)\
**Replies:** 4\
**Last updated:** [January 24, 2024, 7:43am UTC](https://discourse.slicer.org/t/cannot-import-simpleitk-in-build-in-python/33900 "2024-01-24T07:43:05Z")

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I have a problem. I compiled SlicerCustomAppTemplate, installed SimpleITK in it’s build-in python, and it crashed when I run “import SimpleITK” in python script. My environment is Ubuntu22.04. I didn’t open the Slice…

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## ["Ignore Orientation" troubles](https://discourse.slicer.org/t/ignore-orientation-troubles/33944)

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**Author:** [@josh](https://discourse.slicer.org/u/josh)\
**Replies:** 0\
**Last updated:** [January 24, 2024, 4:50am UTC](https://discourse.slicer.org/t/ignore-orientation-troubles/33944 "2024-01-24T04:50:34Z")

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Hi team, Sorry for a silly question. A collaborator segmented some brain lesions from an MRI in nii format, to create some label map files in nrrd format. When I now load them into one scene, the labelmap is not aligned…

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## [Is there a way to perform simple mathematics on voxel values and then generate an image based on them? ](https://discourse.slicer.org/t/is-there-a-way-to-perform-simple-mathematics-on-voxel-values-and-then-generate-an-image-based-on-them/25479)

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**Author:** [@Mmirzaa1](https://discourse.slicer.org/u/Mmirzaa1)\
**Replies:** 3\
**Last updated:** [January 24, 2024, 2:41am UTC](https://discourse.slicer.org/t/is-there-a-way-to-perform-simple-mathematics-on-voxel-values-and-then-generate-an-image-based-on-them/25479 "2024-01-24T02:41:42Z")

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Hello everyone! I was having trouble performing a task at 3Dslicer. I wanted to do some simple mathematics on the voxel values on 3d slicer ( to be exact I wanted to subtract the In-phase voxel intensity values of an ab…

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## [Two Questions Regarding Volume Rendering and Display Issues](https://discourse.slicer.org/t/two-questions-regarding-volume-rendering-and-display-issues/33911)

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**Author:** [@Saki](https://discourse.slicer.org/u/Saki)\
**Replies:** 2\
**Last updated:** [January 24, 2024, 1:18am UTC](https://discourse.slicer.org/t/two-questions-regarding-volume-rendering-and-display-issues/33911 "2024-01-24T01:18:50Z")

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I am having trouble with 3D rendering of the brain using Volume Rendering in 3D Slicer. How should I configure the settings? (See first screenshot attached). Also, in the second screenshot, the number of displayed items …

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## [HU bone section](https://discourse.slicer.org/t/hu-bone-section/33896)

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**Author:** [@Ackta](https://discourse.slicer.org/u/Ackta)\
**Replies:** 1\
**Last updated:** [January 23, 2024, 11:31pm UTC](https://discourse.slicer.org/t/hu-bone-section/33896 "2024-01-23T23:31:17Z")

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Hi, , im new in 3dSlicer,this is a powerfoul software, but im not able to use python, i need export csv from a cilinder selection segmentation .there is a video tutorial or a simple guide to do that?i\`paste and copy a…

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## [Smoothing is causing crashes - help!!](https://discourse.slicer.org/t/smoothing-is-causing-crashes-help/33934)

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**Author:** [@JMcWilliams](https://discourse.slicer.org/u/JMcWilliams)\
**Replies:** 1\
**Last updated:** [January 23, 2024, 10:10pm UTC](https://discourse.slicer.org/t/smoothing-is-causing-crashes-help/33934 "2024-01-23T22:10:47Z")

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Hi all, I am using Slicer 3D 5.6.1 for oil droplet analysis. I have managed to edit the segment down and now just need to smooth the droplets. This is where the issue is!! Whenever I try to smooth it, the program just b…

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## [Run Python code in each subfolder automatically](https://discourse.slicer.org/t/run-python-code-in-each-subfolder-automatically/33924)

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**Author:** [@paleomariomm](https://discourse.slicer.org/u/paleomariomm)\
**Replies:** 2\
**Last updated:** [January 23, 2024, 3:59pm UTC](https://discourse.slicer.org/t/run-python-code-in-each-subfolder-automatically/33924 "2024-01-23T15:59:04Z")

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I have this file structure: Main Folder: W001-W100. Subfolder: W001 Around 500 DICOM files (I am working with CT data). Subfolder: W002 Around 500 DICOM files (I am working with CT data). Subfolder: ... …

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## [Incorrect volume information when loading .nrrd](https://discourse.slicer.org/t/incorrect-volume-information-when-loading-nrrd/33907)

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**Author:** [@mns.larsson](https://discourse.slicer.org/u/mns.larsson)\
**Replies:** 4\
**Last updated:** [January 23, 2024, 3:37pm UTC](https://discourse.slicer.org/t/incorrect-volume-information-when-loading-nrrd/33907 "2024-01-23T15:37:31Z")

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When I load a .nrrd file I believe the direction matrix under volume information might be incorrect. In my example, the space directions in the .nrrd file is: space directions: (1.99900970198094,0.0716907704748626,-1.35…

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## [3D slicer crashes when using VMTK extension's extract centerline in Slicer-5.2](https://discourse.slicer.org/t/3d-slicer-crashes-when-using-vmtk-extensions-extract-centerline-in-slicer-5-2/24091)

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**Author:** [@gfurnari](https://discourse.slicer.org/u/gfurnari)\
**Replies:** 10\
**Last updated:** [January 23, 2024, 2:25pm UTC](https://discourse.slicer.org/t/3d-slicer-crashes-when-using-vmtk-extensions-extract-centerline-in-slicer-5-2/24091 "2024-01-23T14:25:37Z")

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Hi everyone, when i try to compute centerline model using extractcenterline module, both by code or manually, the software crashes everytime. I’m using 4.13.0 version for windows (i tried 5.1 version for macOS bu the pr…

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## [Resources available for MPR in Slicer](https://discourse.slicer.org/t/resources-available-for-mpr-in-slicer/33408)

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**Author:** [@ndelgado](https://discourse.slicer.org/u/ndelgado)\
**Replies:** 12\
**Last updated:** [January 23, 2024, 2:22pm UTC](https://discourse.slicer.org/t/resources-available-for-mpr-in-slicer/33408 "2024-01-23T14:22:11Z")

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What resources are available for using MPR in Slicer?

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## [Create transform programmatically](https://discourse.slicer.org/t/create-transform-programmatically/33927)

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**Author:** [@Anuta](https://discourse.slicer.org/u/Anuta)\
**Replies:** 1\
**Last updated:** [January 23, 2024, 1:30pm UTC](https://discourse.slicer.org/t/create-transform-programmatically/33927 "2024-01-23T13:30:33Z")

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Hello! I am trying to perform multiplanar reformation in slicer (reslice the volume in a different orientation). For this task I use “Transforms” module to alter orientation of the volume and “Resample Scalar Volume” mo…

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## [Oblique CT volume reformation](https://discourse.slicer.org/t/oblique-ct-volume-reformation/33823)

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**Author:** [@Anuta](https://discourse.slicer.org/u/Anuta)\
**Replies:** 3\
**Last updated:** [January 23, 2024, 12:17pm UTC](https://discourse.slicer.org/t/oblique-ct-volume-reformation/33823 "2024-01-23T12:17:55Z")

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Hello! I am new to the Slicer and just starting my project. My main intention is to reslice and save some CT volume in angles (X, Y and Z directions), wich I get from external device, without opening the Slicer itself. I…

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## [Undo process not work correctly](https://discourse.slicer.org/t/undo-process-not-work-correctly/33899)

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**Author:** [@park](https://discourse.slicer.org/u/park)\
**Replies:** 1\
**Last updated:** [January 22, 2024, 8:59pm UTC](https://discourse.slicer.org/t/undo-process-not-work-correctly/33899 "2024-01-22T20:59:49Z")

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Hi all I am currently testing undo/redo process using “SetUndoEnabled” I checked that the function works well when there is only one markups ground, but it malfunctions when there are two or more groups, as shown in th…

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## [Qt warning message when I use python console](https://discourse.slicer.org/t/qt-warning-message-when-i-use-python-console/33865)

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**Author:** [@park](https://discourse.slicer.org/u/park)\
**Replies:** 4\
**Last updated:** [January 22, 2024, 6:16pm UTC](https://discourse.slicer.org/t/qt-warning-message-when-i-use-python-console/33865 "2024-01-22T18:16:58Z")

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Hi all I built Slicer 5.7 as a debug version and loaded a script extension modules using the extension wizard. Since then, I have been consistently getting the following warning messages. Due to this I cannot use the Py…

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## [Crest line extraction](https://discourse.slicer.org/t/crest-line-extraction/33915)

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**Author:** [@eliagre](https://discourse.slicer.org/u/eliagre)\
**Replies:** 0\
**Last updated:** [January 22, 2024, 5:23pm UTC](https://discourse.slicer.org/t/crest-line-extraction/33915 "2024-01-22T17:23:41Z")

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Hi, I am working in 3D Slicer with surface models of human skeletal bones (mainly humeri at the moment). My goal is to crop these models based on anatomical landmarks and other features, so that they can be used for furt…

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## [Drawing an irregular ROI in the image](https://discourse.slicer.org/t/drawing-an-irregular-roi-in-the-image/33889)

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**Author:** [@Atena](https://discourse.slicer.org/u/Atena)\
**Replies:** 5\
**Last updated:** [January 22, 2024, 3:49pm UTC](https://discourse.slicer.org/t/drawing-an-irregular-roi-in-the-image/33889 "2024-01-22T15:49:32Z")

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I use windows 10 , and 3d slicer (5.6.1 version). To show vascular leakage in my image, I need to draw an irregular ROI instead of a square or rectangle and use these areas in artificial intelligence algorithms. can you…

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## [DTI Tractography](https://discourse.slicer.org/t/dti-tractography/33906)

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**Author:** [@Pranali](https://discourse.slicer.org/u/Pranali)\
**Replies:** 0\
**Last updated:** [January 22, 2024, 2:12pm UTC](https://discourse.slicer.org/t/dti-tractography/33906 "2024-01-22T14:12:54Z")

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Hello, I have a DTI dataset with .nii.gz files, i want to do tractography . how to do?

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## [Problems creating a volume from rotational angiography data](https://discourse.slicer.org/t/problems-creating-a-volume-from-rotational-angiography-data/6641)

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**Author:** [@Deyline](https://discourse.slicer.org/u/Deyline)\
**Replies:** 20\
**Last updated:** [January 22, 2024, 10:32am UTC](https://discourse.slicer.org/t/problems-creating-a-volume-from-rotational-angiography-data/6641 "2024-01-22T10:32:50Z")

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Hello Slicer wizards, I’ve been trying to generate a volume from DICOM data that I’ve obtained from a rotational angiography scan. To help me explain the problem I’m encountering, I’ve attached 2 images. The first image…

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