# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=178

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

**Page:** 179

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## [Center of femoral head](https://discourse.slicer.org/t/center-of-femoral-head/14858)

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**Author:** [@felix2609](https://discourse.slicer.org/u/felix2609)\
**Replies:** 10\
**Last updated:** [February 22, 2023, 6:05am UTC](https://discourse.slicer.org/t/center-of-femoral-head/14858 "2023-02-22T06:05:46Z")

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Hello everyone, is there any possibility to mark the center of the femoral head? In planning softwares you can draw a circle around the contour of the femoral head, but i see no possibility to draw a circle and mark its…

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## [Slicer fails to start on Windows with "api-ms-win-crt-runtime-l1-1-0.dll is missing" error popup](https://discourse.slicer.org/t/slicer-fails-to-start-on-windows-with-api-ms-win-crt-runtime-l1-1-0-dll-is-missing-error-popup/27939)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 6\
**Last updated:** [February 22, 2023, 2:18am UTC](https://discourse.slicer.org/t/slicer-fails-to-start-on-windows-with-api-ms-win-crt-runtime-l1-1-0-dll-is-missing-error-popup/27939 "2023-02-22T02:18:45Z")

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I am trying to help a user who is unable to run the latest Slicer 5 on a windows machine due to the error " api-ms-win-crt-runtime-l1-1-0.dll is missing". At the same time, Slicer 4 works fine. I pointed the user to thi…

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## [Noise Using Electromagnetic Tracking](https://discourse.slicer.org/t/noise-using-electromagnetic-tracking/27801)

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**Author:** [@brennachampion](https://discourse.slicer.org/u/brennachampion)\
**Replies:** 4\
**Last updated:** [February 21, 2023, 11:53pm UTC](https://discourse.slicer.org/t/noise-using-electromagnetic-tracking/27801 "2023-02-21T23:53:00Z")

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Hello, I’m trying to use electromagnetic tracking to track a tool through space. I have been able to connect to the tool, gone through pivot calibrations and fiducial registration wizard, and I am noticing a lot of nois…

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## [Loading files from a GE microCT ](https://discourse.slicer.org/t/loading-files-from-a-ge-microct/1937)

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**Author:** [@locobra](https://discourse.slicer.org/u/locobra)\
**Replies:** 32\
**Last updated:** [February 21, 2023, 5:32pm UTC](https://discourse.slicer.org/t/loading-files-from-a-ge-microct/1937 "2023-02-21T17:32:49Z")

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Operating system: MacOSX 10.10 Slicer version: 4 Expected behavior: NA Actual behavior: I have files that I would like to open in 3DSlicer, which were created on a GE microCT system. The output files from the machine…

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## [Totalsegmentator to generate segmentation files, and the use these files to compute CT/PET suv value. but get the wrong answers](https://discourse.slicer.org/t/totalsegmentator-to-generate-segmentation-files-and-the-use-these-files-to-compute-ct-pet-suv-value-but-get-the-wrong-answers/27948)

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**Author:** [@zhang\_ming](https://discourse.slicer.org/u/zhang_ming)\
**Replies:** 3\
**Last updated:** [February 21, 2023, 2:59pm UTC](https://discourse.slicer.org/t/totalsegmentator-to-generate-segmentation-files-and-the-use-these-files-to-compute-ct-pet-suv-value-but-get-the-wrong-answers/27948 "2023-02-21T14:59:25Z")

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without or with the Totalsegmentator plugin , I draw roi manually or by AI, and then use the suv tools ,compute get blank or error value. pic here may anyone help me to solve the problems. The in hospital Doctor wa…

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## [Stable diffusion 2.1 trained on Medical images?](https://discourse.slicer.org/t/stable-diffusion-2-1-trained-on-medical-images/26698)

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**Author:** [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Replies:** 4\
**Last updated:** [February 21, 2023, 2:18pm UTC](https://discourse.slicer.org/t/stable-diffusion-2-1-trained-on-medical-images/26698 "2023-02-21T14:18:56Z")

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It would be very nice to see a NCI-IDC (medical images) trained model such as the open-source Stable Difussion 2.1 for image-from-text-generation Here is a picture from it:

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## [Export TotalSegmentator results to DICOM](https://discourse.slicer.org/t/export-totalsegmentator-results-to-dicom/27815)

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**Author:** [@LipTeck\_Chew](https://discourse.slicer.org/u/LipTeck_Chew)\
**Replies:** 6\
**Last updated:** [February 21, 2023, 9:17am UTC](https://discourse.slicer.org/t/export-totalsegmentator-results-to-dicom/27815 "2023-02-21T09:17:47Z")

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Hi there Has anyone tried to do a DICOM export of the contours from Slicer3D ? I encountered a problem that not all slices of the contours are exported. The contours were produced from TotalSegmentator. Thank you. Re…

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## [Error while trying to create mesh](https://discourse.slicer.org/t/error-while-trying-to-create-mesh/27943)

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**Author:** [@Anjalimukundan](https://discourse.slicer.org/u/Anjalimukundan)\
**Replies:** 0\
**Last updated:** [February 21, 2023, 8:47am UTC](https://discourse.slicer.org/t/error-while-trying-to-create-mesh/27943 "2023-02-21T08:47:53Z")

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\[Qt\] double \_\_cdecl qSlicerSubjectHierarchyFolderPlugin::canOwnSubjectHierarchyItem(\_\_int64) const : Input item is invalid \[VTK\] Warning: In D:\\D\\S\\S-0\\Libs\\MRML\\Core\\vtkMRMLSubjectHierarchyNode.cxx, line 2102 \[VTK\] vt…

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## [Clipping a model without reference geometry](https://discourse.slicer.org/t/clipping-a-model-without-reference-geometry/27891)

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**Author:** [@DeepaKrishnaswamy](https://discourse.slicer.org/u/DeepaKrishnaswamy)\
**Replies:** 6\
**Last updated:** [February 20, 2023, 11:33pm UTC](https://discourse.slicer.org/t/clipping-a-model-without-reference-geometry/27891 "2023-02-20T23:33:28Z")

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Hi, I have a set of STL files that I would like to clip. I’m in the process of trying to use the clipping planes within Models, and also the Dynamic Modeler under Surface Models. However, I do not have the underlying MR…

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## [Error message when importing an .obj file as a volume ](https://discourse.slicer.org/t/error-message-when-importing-an-obj-file-as-a-volume/27937)

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**Author:** [@Lily\_Armstrong-Davie](https://discourse.slicer.org/u/Lily_Armstrong-Davie)\
**Replies:** 1\
**Last updated:** [February 20, 2023, 10:26pm UTC](https://discourse.slicer.org/t/error-message-when-importing-an-obj-file-as-a-volume/27937 "2023-02-20T22:26:43Z")

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Operating system: macOS Slicer version: 5.2.1 Expected behavior: I’d like my 3D skull .obj thats been edited in C4D to be imported into 3D Slicer as a volume so that I can threshold it and then use WrapSolidify to extr…

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## [Breast MR registration ](https://discourse.slicer.org/t/breast-mr-registration/27938)

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**Author:** [@scrmc](https://discourse.slicer.org/u/scrmc)\
**Replies:** 0\
**Last updated:** [February 20, 2023, 10:14pm UTC](https://discourse.slicer.org/t/breast-mr-registration/27938 "2023-02-20T22:14:41Z")

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Hi all, I am trying to “register” two different MR images (one postcontrast and one non fat saturated) taken in the same acquisition. There is no patient motion, so it should essentially just be a matter of cropping the …

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## [Best practice for accessing ScriptedLoadableModuleLogic from Module?](https://discourse.slicer.org/t/best-practice-for-accessing-scriptedloadablemodulelogic-from-module/27899)

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**Author:** [@p\_t](https://discourse.slicer.org/u/p_t)\
**Replies:** 3\
**Last updated:** [February 20, 2023, 7:57pm UTC](https://discourse.slicer.org/t/best-practice-for-accessing-scriptedloadablemodulelogic-from-module/27899 "2023-02-20T19:57:31Z")

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Operating system: Windows 10 Slicer version:5.2.1 I have created my own ScriptedLoadableModule. It has a Module, Widget and Logic. In the documentation I see that the Module is supposed to create the Widget and Logic (h…

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## [Search for example data](https://discourse.slicer.org/t/search-for-example-data/27694)

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**Author:** [@whu](https://discourse.slicer.org/u/whu)\
**Replies:** 3\
**Last updated:** [February 20, 2023, 1:17pm UTC](https://discourse.slicer.org/t/search-for-example-data/27694 "2023-02-20T13:17:36Z")

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Dear ALL, I have been looking for a sample data, esophageal ultrasound（3D TEE）, used to experience the valve annulus and valve segmentation in SlicerHeart, thanks. best wishes. whu

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## [3D small intestine reconstruction](https://discourse.slicer.org/t/3d-small-intestine-reconstruction/11365)

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**Author:** [@edmontontutor](https://discourse.slicer.org/u/edmontontutor)\
**Replies:** 4\
**Last updated:** [February 20, 2023, 11:00am UTC](https://discourse.slicer.org/t/3d-small-intestine-reconstruction/11365 "2023-02-20T11:00:00Z")

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Hello, Has anyone reconstructed a 3D image of the small intestine using 3D Slicer and CT scans? Can anyone provide some suggestions please? I’m having some issues segmenting the small intestine. Thanks

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## [How to change segmentation sizes?](https://discourse.slicer.org/t/how-to-change-segmentation-sizes/27920)

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**Author:** [@radiodid](https://discourse.slicer.org/u/radiodid)\
**Replies:** 0\
**Last updated:** [February 20, 2023, 6:47am UTC](https://discourse.slicer.org/t/how-to-change-segmentation-sizes/27920 "2023-02-20T06:47:29Z")

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I’m having trouble with the segmentation size in Slicer. The size of the CT I am working on is 400x400x296, but the segmentation is 252x351x270. I tried to create other segmentations and each time the size is different a…

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## [How to hide the text of a markup](https://discourse.slicer.org/t/how-to-hide-the-text-of-a-markup/27853)

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**Author:** [@wrc](https://discourse.slicer.org/u/wrc)\
**Replies:** 3\
**Last updated:** [February 20, 2023, 6:12am UTC](https://discourse.slicer.org/t/how-to-hide-the-text-of-a-markup/27853 "2023-02-20T06:12:46Z")

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Hello, I want to hide the text of a markup. I tried to set text size to zero. There is still a very small text on the scene (both 2D and 3D). Is there any method to hide the text thoroughly? Thank you.

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## [3D Slicer Crashes When Working With Data With Large Number of Slices](https://discourse.slicer.org/t/3d-slicer-crashes-when-working-with-data-with-large-number-of-slices/27844)

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**Author:** [@Russell\_Engelman](https://discourse.slicer.org/u/Russell_Engelman)\
**Replies:** 5\
**Last updated:** [February 20, 2023, 4:28am UTC](https://discourse.slicer.org/t/3d-slicer-crashes-when-working-with-data-with-large-number-of-slices/27844 "2023-02-20T04:28:27Z")

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I recently tried to download a dataset from MorphoSource (https://www.morphosource.org/concern/media/000084459?locale=en) to segment in 3D Slicer. The dataset is very large and I am trying to export a surface mesh of the…

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## [How I can find the center of the humeroulnar joint using 3d slicer ?](https://discourse.slicer.org/t/how-i-can-find-the-center-of-the-humeroulnar-joint-using-3d-slicer/27779)

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**Author:** [@Julian\_KC](https://discourse.slicer.org/u/Julian_KC)\
**Replies:** 17\
**Last updated:** [February 19, 2023, 6:09pm UTC](https://discourse.slicer.org/t/how-i-can-find-the-center-of-the-humeroulnar-joint-using-3d-slicer/27779 "2023-02-19T18:09:22Z")

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Hello everyone, I am currently working on the morphology of the ulna and I need to calculate the biomechanical length of some ulnas by placing a landmark at the center of the trochlear notch (the center of the joint). I…

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## [PETCTfusion (dealing with PET and CT DICOM images)](https://discourse.slicer.org/t/petctfusion-dealing-with-pet-and-ct-dicom-images/8361)

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**Author:** [@Nora](https://discourse.slicer.org/u/Nora)\
**Replies:** 4\
**Last updated:** [February 18, 2023, 11:37pm UTC](https://discourse.slicer.org/t/petctfusion-dealing-with-pet-and-ct-dicom-images/8361 "2023-02-18T23:37:25Z")

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Hi, I’m trying to put my head around 3D slicer. I’ve downloaded version 4.10.2 and 4.11.0. I’ll be working with PET/CT images. I’m trying to find PETCTfusion module but I couldn’t find it on the list, not even on the …

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## [Creatin a Pore Size Distribution with an .stl file of a CT Scan of a tensile specimen](https://discourse.slicer.org/t/creatin-a-pore-size-distribution-with-an-stl-file-of-a-ct-scan-of-a-tensile-specimen/27860)

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**Author:** [@thorbenjt](https://discourse.slicer.org/u/thorbenjt)\
**Replies:** 6\
**Last updated:** [February 18, 2023, 1:45pm UTC](https://discourse.slicer.org/t/creatin-a-pore-size-distribution-with-an-stl-file-of-a-ct-scan-of-a-tensile-specimen/27860 "2023-02-18T13:45:19Z")

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Hello there, I am trying to isolate the pores in my .stl file of a tensile specimen. I figured, that i have to load the data as a “segmentation” into 3D Slicer. I also figured, how to change the amount of slices, such t…

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## [Smoothing in Surface toolbox has issues working with OBJ file with texture coordinates](https://discourse.slicer.org/t/smoothing-in-surface-toolbox-has-issues-working-with-obj-file-with-texture-coordinates/27887)

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**Author:** [@chz31](https://discourse.slicer.org/u/chz31)\
**Replies:** 4\
**Last updated:** [February 18, 2023, 12:57pm UTC](https://discourse.slicer.org/t/smoothing-in-surface-toolbox-has-issues-working-with-obj-file-with-texture-coordinates/27887 "2023-02-18T12:57:53Z")

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Hi all, It appears that the Taubin & Laplace smoothing in Surface Toolbox does not work well with OBJ format. For example, decimation does not work. Furthermore, when I altered the parameters between the higher and lowe…

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## [Exporting only one plane of the reconstruction](https://discourse.slicer.org/t/exporting-only-one-plane-of-the-reconstruction/27900)

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**Author:** [@Ileana](https://discourse.slicer.org/u/Ileana)\
**Replies:** 0\
**Last updated:** [February 18, 2023, 4:55am UTC](https://discourse.slicer.org/t/exporting-only-one-plane-of-the-reconstruction/27900 "2023-02-18T04:55:36Z")

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Operating system: windows 10 Slicer version: 4.10.2 Expected behavior: I am new to it, so not sure what to expect Actual behavior: I have a set of dcm dose files exported from Muriplan. Originally, those are axial fi…

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## [stl file stores the annotation results of CT data, and I want to convert it to nii format for deep learning.](https://discourse.slicer.org/t/stl-file-stores-the-annotation-results-of-ct-data-and-i-want-to-convert-it-to-nii-format-for-deep-learning/27898)

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**Author:** [@missile](https://discourse.slicer.org/u/missile)\
**Replies:** 1\
**Last updated:** [February 17, 2023, 5:18pm UTC](https://discourse.slicer.org/t/stl-file-stores-the-annotation-results-of-ct-data-and-i-want-to-convert-it-to-nii-format-for-deep-learning/27898 "2023-02-17T17:18:19Z")

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Operating system:Hii, I am having trouble applying the module in slicer 5.0.2. My situation is the stl file stores the annotation results of CT data, and I want to convert it to nii format for deep learning. When i pre…

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## [load noad from file](https://discourse.slicer.org/t/load-noad-from-file/27897)

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**Author:** [@missile](https://discourse.slicer.org/u/missile)\
**Replies:** 0\
**Last updated:** [February 18, 2023, 4:52am UTC](https://discourse.slicer.org/t/load-noad-from-file/27897 "2023-02-18T04:52:33Z")

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Hii, I am having trouble applying the module in slicer 5.0.2. My situation isthe stl file stores the annotation results of CT data, and I want to convert it to nii format for deep learning. When i press apply, it saysr…

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## [Batch Landmark Registration](https://discourse.slicer.org/t/batch-landmark-registration/27890)

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**Author:** [@Steven\_A](https://discourse.slicer.org/u/Steven_A)\
**Replies:** 1\
**Last updated:** [February 17, 2023, 10:56pm UTC](https://discourse.slicer.org/t/batch-landmark-registration/27890 "2023-02-17T22:56:02Z")

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Is there a method to do batch landmark registration from a folder of landmark files created in slicer for the models?

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## [Issue with "INTERSECT" segment editor effect programming (others are fine)](https://discourse.slicer.org/t/issue-with-intersect-segment-editor-effect-programming-others-are-fine/27872)

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**Author:** [@nrex45](https://discourse.slicer.org/u/nrex45)\
**Replies:** 1\
**Last updated:** [February 16, 2023, 7:26pm UTC](https://discourse.slicer.org/t/issue-with-intersect-segment-editor-effect-programming-others-are-fine/27872 "2023-02-16T19:26:16Z")

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Hello All, I’ve been working witht the segmentEditor Widget based on the code examples on the dev site and have been referencing the info here: Segment editor — 3D Slicer documentation But for whatever reason I cannot …

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## [Extract Centerline module omits a branch](https://discourse.slicer.org/t/extract-centerline-module-omits-a-branch/27889)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 0\
**Last updated:** [February 17, 2023, 8:49pm UTC](https://discourse.slicer.org/t/extract-centerline-module-omits-a-branch/27889 "2023-02-17T20:49:22Z")

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I have a surface model of an airway including the trachea and two bronchi. When I use the ExtractCenterline module with three endpoints (near the superior end of the trachea and near the ends of the bronchi) with the su…

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## [MacOS RX580 Scissors Segment very slow](https://discourse.slicer.org/t/macos-rx580-scissors-segment-very-slow/27852)

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**Author:** [@zyy](https://discourse.slicer.org/u/zyy)\
**Replies:** 5\
**Last updated:** [February 17, 2023, 3:12pm UTC](https://discourse.slicer.org/t/macos-rx580-scissors-segment-very-slow/27852 "2023-02-17T15:12:26Z")

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my computer I want segment the vessel from cta film,but scissor tool so slow compare by in windows. windows just need 1 second will give response.mac need 3 second to 1 minute or more，It is unormal. cta image fil…

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## [Black screen on startup after seeing home page ](https://discourse.slicer.org/t/black-screen-on-startup-after-seeing-home-page/27719)

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**Author:** [@GeneRisi](https://discourse.slicer.org/u/GeneRisi)\
**Replies:** 5\
**Last updated:** [February 16, 2023, 7:35pm UTC](https://discourse.slicer.org/t/black-screen-on-startup-after-seeing-home-page/27719 "2023-02-16T19:35:10Z")

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I have 5.3.0 running on an old desktop but not on a somewhat newer laptop. are there debug levels I can set to see exactly what the problem is? Thank you! Gene Risi

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## [Exporting segmentations for analysis in SPM/FSL](https://discourse.slicer.org/t/exporting-segmentations-for-analysis-in-spm-fsl/27841)

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**Author:** [@jok](https://discourse.slicer.org/u/jok)\
**Replies:** 2\
**Last updated:** [February 16, 2023, 3:22pm UTC](https://discourse.slicer.org/t/exporting-segmentations-for-analysis-in-spm-fsl/27841 "2023-02-16T15:22:09Z")

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Hello, I have been segmenting lesions on brain MRIs. My brain MRIs are in .nii format. I have saved my manually drawn segmentation labels as nrrd files. When I open my subject’s MRI in 3dslicer, and then add the segment…

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