# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=290

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

**Page:** 291

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## [NVIDIA AIAA default server error when running auto-segmentation](https://discourse.slicer.org/t/nvidia-aiaa-default-server-error-when-running-auto-segmentation/16643)

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**Author:** [@icerchou](https://discourse.slicer.org/u/icerchou)\
**Replies:** 3\
**Last updated:** [March 26, 2021, 6:08am UTC](https://discourse.slicer.org/t/nvidia-aiaa-default-server-error-when-running-auto-segmentation/16643 "2021-03-26T06:08:53Z")

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I’m new to using 3d-slicer and want to do fully-automatic segmentation of liver and tumor on CT. When I followed the steps in Tutorials and examples, there’s a slicer error: It seems something wrong with the server, …

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## [DTI Nifti data from the HCP import via DWI Convert Module](https://discourse.slicer.org/t/dti-nifti-data-from-the-hcp-import-via-dwi-convert-module/6330)

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**Author:** [@Bebo](https://discourse.slicer.org/u/Bebo)\
**Replies:** 9\
**Last updated:** [March 26, 2021, 3:25am UTC](https://discourse.slicer.org/t/dti-nifti-data-from-the-hcp-import-via-dwi-convert-module/6330 "2021-03-26T03:25:18Z")

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Hello every one, I’m using 3D Slicer 4.10.1. I’m currently trying to convert DTI Nifti data from the HCP import via DWI Convert Module (the data come from http://www.humanconnectomeproject.org/). However I have this er…

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## [STL Meshing properties and controls](https://discourse.slicer.org/t/stl-meshing-properties-and-controls/16607)

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**Author:** [@Nicholas.jacobson](https://discourse.slicer.org/u/Nicholas.jacobson)\
**Replies:** 1\
**Last updated:** [March 26, 2021, 3:09am UTC](https://discourse.slicer.org/t/stl-meshing-properties-and-controls/16607 "2021-03-26T03:09:38Z")

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Is there a way to understand the controls for meshing to an STL file. I’d like to be able to modify edge length properties, angles, and other elements inherent to stl meshing… or at least know what they are set at by def…

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## [Import stl object](https://discourse.slicer.org/t/import-stl-object/16620)

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**Author:** [@Jmarcs](https://discourse.slicer.org/u/Jmarcs)\
**Replies:** 3\
**Last updated:** [March 26, 2021, 2:51am UTC](https://discourse.slicer.org/t/import-stl-object/16620 "2021-03-26T02:51:48Z")

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Operating system: Slicer version 4.11 I would like to import stl object (and mix with cbct) and work with editing option. But the software doesnt convert stl to labelmodel in good quality. Do you have a solution to imp…

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## [Segmentation depth peeling/carving](https://discourse.slicer.org/t/segmentation-depth-peeling-carving/16633)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 1\
**Last updated:** [March 26, 2021, 2:50am UTC](https://discourse.slicer.org/t/segmentation-depth-peeling-carving/16633 "2021-03-26T02:50:21Z")

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im trying to achieve what i call it "segments depth peeling/carving " not sure if that a proper term or not . it is like what I do with volume through moving the ROI, making it disappear in the coronal plane . for me …

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## [The affect of smoothing on the model size](https://discourse.slicer.org/t/the-affect-of-smoothing-on-the-model-size/16754)

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**Author:** [@YOZ](https://discourse.slicer.org/u/YOZ)\
**Replies:** 1\
**Last updated:** [March 25, 2021, 7:35pm UTC](https://discourse.slicer.org/t/the-affect-of-smoothing-on-the-model-size/16754 "2021-03-25T19:35:13Z")

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Hey guys. You’ve helped a lot so thanks. I need to segment a bone but I need it to be very accurate in size. However the imaging quality isn’t great and the bone isn’t smooth at all. Should I do smoothing or will it aff…

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## [SlicerCAT build stops without finishing](https://discourse.slicer.org/t/slicercat-build-stops-without-finishing/16700)

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**Author:** [@keri](https://discourse.slicer.org/u/keri)\
**Replies:** 7\
**Last updated:** [March 25, 2021, 7:17pm UTC](https://discourse.slicer.org/t/slicercat-build-stops-without-finishing/16700 "2021-03-25T19:17:29Z")

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Hi, I’ve started to develop custom slicer app for geoscience. I follow SlicerCAT strategy and as examples I use aevaSlicer and SlicerAstro My slicerCAT has two additional dependencies: h5geo is a C++ library GDAL i…

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## [How to get image that requested scale from 3d slicer (save as NITFI)? ](https://discourse.slicer.org/t/how-to-get-image-that-requested-scale-from-3d-slicer-save-as-nitfi/16662)

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**Author:** [@KAMONCHAT\_APIVANICHK](https://discourse.slicer.org/u/KAMONCHAT_APIVANICHK)\
**Replies:** 1\
**Last updated:** [March 25, 2021, 1:53pm UTC](https://discourse.slicer.org/t/how-to-get-image-that-requested-scale-from-3d-slicer-save-as-nitfi/16662 "2021-03-25T13:53:02Z")

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I am researching about segmentation by deep learning via python then I would like to save CT Scan in .png or .jpg for using as input dataset but pictures what I got is bone-scale like the first picture. Have any way I ca…

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## [Setting the volume property to be used when a volume is rendered automatically](https://discourse.slicer.org/t/setting-the-volume-property-to-be-used-when-a-volume-is-rendered-automatically/16653)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 4\
**Last updated:** [March 25, 2021, 1:51pm UTC](https://discourse.slicer.org/t/setting-the-volume-property-to-be-used-when-a-volume-is-rendered-automatically/16653 "2021-03-25T13:51:38Z")

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When I drag and drop volume to the 3D render, it automatically renders with the volume property MR. I would like it to use one of my custom presets that are registered via the .slicerrc.py (as per this instructions Volum…

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## [Slicer Elastix extension not available for newest Slicer 13.0. 2021.03.19](https://discourse.slicer.org/t/slicer-elastix-extension-not-available-for-newest-slicer-13-0-2021-03-19/16688)

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**Author:** [@PalkoD](https://discourse.slicer.org/u/PalkoD)\
**Replies:** 2\
**Last updated:** [March 25, 2021, 1:25pm UTC](https://discourse.slicer.org/t/slicer-elastix-extension-not-available-for-newest-slicer-13-0-2021-03-19/16688 "2021-03-25T13:25:37Z")

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Dear All! I just downloaded the newest version of slicer, and I was trying to restore extensions, and few of the extensions including Elastix, are unfortunately not available for the newest version. This is very unfortu…

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## [Create ROI from PET data](https://discourse.slicer.org/t/create-roi-from-pet-data/16695)

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**Author:** [@kykwon](https://discourse.slicer.org/u/kykwon)\
**Replies:** 5\
**Last updated:** [March 25, 2021, 1:32am UTC](https://discourse.slicer.org/t/create-roi-from-pet-data/16695 "2021-03-25T01:32:31Z")

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Dear experts, I am trying to create ROI from dicom PET/CT data. I complete segmentation from the PET dicom data but I don’t know how can I create ROI from segmentation… is it possible or should I have to different way? …

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## [A problem with "Grow from seed function"](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699)

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**Author:** [@YOZ](https://discourse.slicer.org/u/YOZ)\
**Replies:** 3\
**Last updated:** [March 24, 2021, 11:16pm UTC](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699 "2021-03-24T23:16:57Z")

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Hello! Can you guys help me with “Grow from seed function”. When I draw my seeds, and press initialize in the grow from seed function it show a square instead of tracking along the artery. Thank you for your hard wo…

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## [Reconstrct 3D surface from a set of CT images (only coronal planes)](https://discourse.slicer.org/t/reconstrct-3d-surface-from-a-set-of-ct-images-only-coronal-planes/16678)

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**Author:** [@amine\_bohi](https://discourse.slicer.org/u/amine_bohi)\
**Replies:** 1\
**Last updated:** [March 24, 2021, 5:54pm UTC](https://discourse.slicer.org/t/reconstrct-3d-surface-from-a-set-of-ct-images-only-coronal-planes/16678 "2021-03-24T17:54:40Z")

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Operating system: Windows Slicer version: 4.11 Expected behavior: Reconstruct 3D surface from CT images Actual behavior: I’m begginer, I don’t know how to do this task especially with only one plane (coronal, axial or…

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## [Application failed to start on Windows 7](https://discourse.slicer.org/t/application-failed-to-start-on-windows-7/16749)

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**Author:** [@gabba78](https://discourse.slicer.org/u/gabba78)\
**Replies:** 2\
**Last updated:** [March 24, 2021, 5:29pm UTC](https://discourse.slicer.org/t/application-failed-to-start-on-windows-7/16749 "2021-03-24T17:29:24Z")

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Hi, I get 0xc000007b error on Windows 7 machines. Apparently something is wrong with DirectX

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## [SegmentStatistics](https://discourse.slicer.org/t/segmentstatistics/16716)

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**Author:** [@Rachele](https://discourse.slicer.org/u/Rachele)\
**Replies:** 1\
**Last updated:** [March 24, 2021, 5:23pm UTC](https://discourse.slicer.org/t/segmentstatistics/16716 "2021-03-24T17:23:22Z")

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Operating system: macOS Big Sur version 11.2.2 Slicer version: 4.11.20200930 Hi, I’m trying to understand why the number of voxels computed by scalar volume statistics plugin is much different from the number of voxels…

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## [Mapping electromagnetic tracking error](https://discourse.slicer.org/t/mapping-electromagnetic-tracking-error/16717)

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**Author:** [@marco.cavaliere](https://discourse.slicer.org/u/marco.cavaliere)\
**Replies:** 1\
**Last updated:** [March 24, 2021, 5:21pm UTC](https://discourse.slicer.org/t/mapping-electromagnetic-tracking-error/16717 "2021-03-24T17:21:39Z")

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Hi, I’m trying to visualize the position error between 2 tracking systems (electromagnetic and optical) in Slicer, as it is done in this paper https://doi.org/10.1117/12.2082330 I’m following this tutorial SlicerIGT-U…

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## [Registration MRI breast with segmentation](https://discourse.slicer.org/t/registration-mri-breast-with-segmentation/16703)

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**Author:** [@Mgi](https://discourse.slicer.org/u/Mgi)\
**Replies:** 3\
**Last updated:** [March 24, 2021, 5:07pm UTC](https://discourse.slicer.org/t/registration-mri-breast-with-segmentation/16703 "2021-03-24T17:07:31Z")

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Hi Everyone! I am working with 3D slicer 4.11.2 version on windows. I want to register intra subject breast substraction mri images, where I made one ROI segmentation, with DWI b0 images. Could you tell me which is the …

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## [Export segmentation as RTSS](https://discourse.slicer.org/t/export-segmentation-as-rtss/16346)

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**Author:** [@CELESTE\_ADRAGNA](https://discourse.slicer.org/u/CELESTE_ADRAGNA)\
**Replies:** 3\
**Last updated:** [March 24, 2021, 4:05pm UTC](https://discourse.slicer.org/t/export-segmentation-as-rtss/16346 "2021-03-24T16:05:14Z")

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Operating system: windows 64bit Slicer version: 4.9 Expected behavior: export segmentation as RT structure into treatmet planning system (TPS) Eclipse Actual behavior: error in TPS import Hi, i’m trying to use slicer…

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## [Error, export to DICOM](https://discourse.slicer.org/t/error-export-to-dicom/12429)

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**Author:** [@cotozakot](https://discourse.slicer.org/u/cotozakot)\
**Replies:** 10\
**Last updated:** [March 24, 2021, 4:03pm UTC](https://discourse.slicer.org/t/error-export-to-dicom/12429 "2021-03-24T16:03:05Z")

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I want to export segmentation to a DICOM file. Unfortunately, an error appears all the time. Warning: Warning: 718 of 718 selected files listed in the database cannot be found on disk.

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## [Applying paint brush results in clipped labels on some CT spine volumes](https://discourse.slicer.org/t/applying-paint-brush-results-in-clipped-labels-on-some-ct-spine-volumes/16483)

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**Author:** [@Ron](https://discourse.slicer.org/u/Ron)\
**Replies:** 1\
**Last updated:** [March 24, 2021, 3:58pm UTC](https://discourse.slicer.org/t/applying-paint-brush-results-in-clipped-labels-on-some-ct-spine-volumes/16483 "2021-03-24T15:58:51Z")

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Operating system: Win 10 Slicer version:4.11 Expected behavior: Be able to mark the full vertebral anatomy Actual behavior: Using the paintbrush tool in the segment editor, label maps seem to be “clipped” anteriorly (…

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## [DICOM Library-Documentation](https://discourse.slicer.org/t/dicom-library-documentation/16747)

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**Author:** [@juliangallaun](https://discourse.slicer.org/u/juliangallaun)\
**Replies:** 2\
**Last updated:** [March 24, 2021, 2:58pm UTC](https://discourse.slicer.org/t/dicom-library-documentation/16747 "2021-03-24T14:58:58Z")

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Operating system: Ubuntu Slicer version: 4.11.20210226 Greetings slicer community, as a slicer novice I am struggling with the upload/ creation of my DICOM Library. When I upload my DICOM folder, a new patient is crea…

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## [How can I crop a Volume from new vtkMRMLMarkupsROINode?](https://discourse.slicer.org/t/how-can-i-crop-a-volume-from-new-vtkmrmlmarkupsroinode/16679)

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**Author:** [@apparrilla](https://discourse.slicer.org/u/apparrilla)\
**Replies:** 2\
**Last updated:** [March 24, 2021, 4:06am UTC](https://discourse.slicer.org/t/how-can-i-crop-a-volume-from-new-vtkmrmlmarkupsroinode/16679 "2021-03-24T04:06:19Z")

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I want to use Crop Volume Module with new vtkMRMLMarkupsROINode because new ROIs are easier to rotate but they are not showed in Module ROI combobox. Thanks on advance…

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## [Segment Skeletal thorax (Ribs, Thoracic spine and sternum)](https://discourse.slicer.org/t/segment-skeletal-thorax-ribs-thoracic-spine-and-sternum/16600)

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**Author:** [@colabwarrior](https://discourse.slicer.org/u/colabwarrior)\
**Replies:** 16\
**Last updated:** [March 23, 2021, 5:41pm UTC](https://discourse.slicer.org/t/segment-skeletal-thorax-ribs-thoracic-spine-and-sternum/16600 "2021-03-23T17:41:12Z")

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Hi, I am trying to use slicer to isolate the skeletal thorax from DICOMS. I am working with threshold, islands and scissors tool but I am not able to isolate the bones cleanly. Soft tissue, organs, scan bed shows up in…

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## [No intensity change at 4.11](https://discourse.slicer.org/t/no-intensity-change-at-4-11/16722)

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**Author:** [@siaeleni](https://discourse.slicer.org/u/siaeleni)\
**Replies:** 2\
**Last updated:** [March 23, 2021, 3:26pm UTC](https://discourse.slicer.org/t/no-intensity-change-at-4-11/16722 "2021-03-23T15:26:23Z")

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Hello, I have realized that when I load dicom files on Slicer 4.11+ I cannot change the intensity on the 2D Views, while on 4.10 this can change, is it a normal behavior? Thanks

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## [How do I use Python to call a Transform module to another module](https://discourse.slicer.org/t/how-do-i-use-python-to-call-a-transform-module-to-another-module/16711)

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**Author:** [@Carl098](https://discourse.slicer.org/u/Carl098)\
**Replies:** 2\
**Last updated:** [March 23, 2021, 12:14pm UTC](https://discourse.slicer.org/t/how-do-i-use-python-to-call-a-transform-module-to-another-module/16711 "2021-03-23T12:14:14Z")

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self.transformsLogic = slicer.modules.transforms.logic() self.transformsModuleWidget = PythonQt.qSlicerTransformsModuleWidgets.qSlicerTransformsModuleWidget() editWidget = slicer.util.findChild(self.transformsModuleWid…

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## [Display of two-dimensional image in RAS space under transform matrix](https://discourse.slicer.org/t/display-of-two-dimensional-image-in-ras-space-under-transform-matrix/16696)

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**Author:** [@Natsu-666](https://discourse.slicer.org/u/Natsu-666)\
**Replies:** 1\
**Last updated:** [March 23, 2021, 5:51am UTC](https://discourse.slicer.org/t/display-of-two-dimensional-image-in-ras-space-under-transform-matrix/16696 "2021-03-23T05:51:03Z")

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Operating system:Win10 Slicer version:4.11.20200930 Hi！I want to translate and rotate the two-dimensional image which under a transform matrix in RAS space,just like other model.But in fact as show in the figure. Th…

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## [Distorted Images from DICOM File](https://discourse.slicer.org/t/distorted-images-from-dicom-file/16617)

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**Author:** [@JacobD](https://discourse.slicer.org/u/JacobD)\
**Replies:** 6\
**Last updated:** [March 22, 2021, 9:27pm UTC](https://discourse.slicer.org/t/distorted-images-from-dicom-file/16617 "2021-03-22T21:27:33Z")

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Hello, I have imported a DICOM file of a shoulder MRI scan, however, each view appears distorted. When attempting to load the axial view image set, the axial view scan is clear, and the other views are blurry. When atte…

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## [Convert nrrd to nii.gz](https://discourse.slicer.org/t/convert-nrrd-to-nii-gz/16694)

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**Author:** [@Hball99](https://discourse.slicer.org/u/Hball99)\
**Replies:** 2\
**Last updated:** [March 22, 2021, 8:32pm UTC](https://discourse.slicer.org/t/convert-nrrd-to-nii-gz/16694 "2021-03-22T20:32:28Z")

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Hello there! For a special use case, I need all my data in nii.gz format. Right now, I have 200+ CT-Volumes plus segmentations both stores in .nrrd data format. I could open each of those volumes/segmentations in 3D sli…

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## [Combining segmentation hierarchies](https://discourse.slicer.org/t/combining-segmentation-hierarchies/16258)

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**Author:** [@YOZ](https://discourse.slicer.org/u/YOZ)\
**Replies:** 2\
**Last updated:** [March 22, 2021, 7:35pm UTC](https://discourse.slicer.org/t/combining-segmentation-hierarchies/16258 "2021-03-22T19:35:50Z")

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Hi I’m having issues with segmentations, for some reason during my work, I did too much segmentation hierarchy. And now within each layer or hierarchy there is a bit of changes I made as you can see in the picture T…

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## [How to render the model by an image](https://discourse.slicer.org/t/how-to-render-the-model-by-an-image/16675)

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**Author:** [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Replies:** 6\
**Last updated:** [March 22, 2021, 3:57pm UTC](https://discourse.slicer.org/t/how-to-render-the-model-by-an-image/16675 "2021-03-22T15:57:56Z")

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Dear Professors I Always fail when using image rendering model! as is shown in this picture.How to solve the problem，After clicking apply, the model becomes white.win 20210226

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