# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=234

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

**Page:** 235

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## [Error: Command 'elastix' returned non-zero exit status 3221225477](https://discourse.slicer.org/t/error-command-elastix-returned-non-zero-exit-status-3221225477/22374)

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**Author:** [@Roman](https://discourse.slicer.org/u/Roman)\
**Replies:** 1\
**Last updated:** [March 8, 2022, 6:57pm UTC](https://discourse.slicer.org/t/error-command-elastix-returned-non-zero-exit-status-3221225477/22374 "2022-03-08T18:57:17Z")

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Operating system: win10 Slicer version: 4.11.20210226 r29738 / 7a593c8 Expected behavior: elastix completes the job without an error code and the result makes sense Actual behavior: Error: Command ‘elastix’ returned n…

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## [Prepare a coronary artery model for CFD simulation.](https://discourse.slicer.org/t/prepare-a-coronary-artery-model-for-cfd-simulation/22370)

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**Author:** [@Chengxi\_Li](https://discourse.slicer.org/u/Chengxi_Li)\
**Replies:** 0\
**Last updated:** [March 8, 2022, 3:02pm UTC](https://discourse.slicer.org/t/prepare-a-coronary-artery-model-for-cfd-simulation/22370 "2022-03-08T15:02:58Z")

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Hi There, I am trying to prepare a coronary model for CFD simulation which requires to cut the branches of coronary artery nicely. The aim is to get the model as shown below: As you can seen every branches have been…

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## [Slicer crash when extracting centerline](https://discourse.slicer.org/t/slicer-crash-when-extracting-centerline/22363)

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**Author:** [@Kane\_Daizah](https://discourse.slicer.org/u/Kane_Daizah)\
**Replies:** 0\
**Last updated:** [March 8, 2022, 7:44am UTC](https://discourse.slicer.org/t/slicer-crash-when-extracting-centerline/22363 "2022-03-08T07:44:33Z")

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Hi, When I computed the vessel centerlines using extract centerline model, the program crashed. I don’t know why it happens. Is it because there are too many branches ? Here is the dataset that triggered this issue. …

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## [How to Get/Set the display area window size with python code?](https://discourse.slicer.org/t/how-to-get-set-the-display-area-window-size-with-python-code/22275)

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**Author:** [@user4](https://discourse.slicer.org/u/user4)\
**Replies:** 5\
**Last updated:** [March 7, 2022, 1:56pm UTC](https://discourse.slicer.org/t/how-to-get-set-the-display-area-window-size-with-python-code/22275 "2022-03-07T13:56:29Z")

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Slicer 4.11 By default,the window size is about 672x994 resolution which is marked in red. I can manually expand or shrink the window like this: I wonder if there is some way to get/set the window size? Thank yo…

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## [Issues using the Slicer 4.11 kernel with Pytorch](https://discourse.slicer.org/t/issues-using-the-slicer-4-11-kernel-with-pytorch/22308)

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**Author:** [@dariodo.fal](https://discourse.slicer.org/u/dariodo.fal)\
**Replies:** 3\
**Last updated:** [March 6, 2022, 5:52pm UTC](https://discourse.slicer.org/t/issues-using-the-slicer-4-11-kernel-with-pytorch/22308 "2022-03-06T17:52:43Z")

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Hello, I am trying to do the Transfer Learning tutorial that the Pytorch website offers using the Slicer 4.11 kernel with the TorchIO extension but I am finding a problem I don’t understand. The code looks like this so f…

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## [How to capture a screenshot and turn it into a numpy array with python code?](https://discourse.slicer.org/t/how-to-capture-a-screenshot-and-turn-it-into-a-numpy-array-with-python-code/22302)

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**Author:** [@user4](https://discourse.slicer.org/u/user4)\
**Replies:** 8\
**Last updated:** [March 6, 2022, 2:53pm UTC](https://discourse.slicer.org/t/how-to-capture-a-screenshot-and-turn-it-into-a-numpy-array-with-python-code/22302 "2022-03-06T14:53:48Z")

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Slicer version 4.11 I can capture a screenshot here: or I can capture a screenshot in Script Repository here However,both of the two methods are saving the image as .png file.If I want to see the image pixel value I…

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## [Bounding box correction](https://discourse.slicer.org/t/bounding-box-correction/22251)

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**Author:** [@Kalman](https://discourse.slicer.org/u/Kalman)\
**Replies:** 1\
**Last updated:** [March 5, 2022, 7:33pm UTC](https://discourse.slicer.org/t/bounding-box-correction/22251 "2022-03-05T19:33:41Z")

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Hi, I would like to ask you regarding the size of the transformation result. The brief summary: I use the Elastix modul for non-linear normalization to get the transformation matrix (on a mean volume), which is then app…

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## [Can the modeled files be moved?](https://discourse.slicer.org/t/can-the-modeled-files-be-moved/22286)

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**Author:** [@zhuyingxinxs](https://discourse.slicer.org/u/zhuyingxinxs)\
**Replies:** 2\
**Last updated:** [March 5, 2022, 8:00am UTC](https://discourse.slicer.org/t/can-the-modeled-files-be-moved/22286 "2022-03-05T08:00:10Z")

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Can modeled files be dragged to locations? The modeled skin and bones are in the wrong position and need to be moved

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## [In the latest version of the software, the prism rendering module cannot be used normally,。](https://discourse.slicer.org/t/in-the-latest-version-of-the-software-the-prism-rendering-module-cannot-be-used-normally/22321)

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**Author:** [@qiqi5210](https://discourse.slicer.org/u/qiqi5210)\
**Replies:** 0\
**Last updated:** [March 5, 2022, 12:48am UTC](https://discourse.slicer.org/t/in-the-latest-version-of-the-software-the-prism-rendering-module-cannot-be-used-normally/22321 "2022-03-05T00:48:15Z")

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In the latest version of the software, the prism rendering module cannot be used normally, and the mouse pattern of ROI appears when points should be added. As shown in the following picture, after clicking the “initiali…

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## [DICOM export failed - UID tags](https://discourse.slicer.org/t/dicom-export-failed-uid-tags/22317)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 4\
**Last updated:** [March 4, 2022, 11:43pm UTC](https://discourse.slicer.org/t/dicom-export-failed-uid-tags/22317 "2022-03-04T23:43:56Z")

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I tried exporting a volume to a DICOM series with only the ‘StudyInstanceUID’ tag specified. This threw the following error: If any of UIDs (studyInstanceUID, seriesInstanceUID, and frameOfReferenceInstanceUID) are sp…

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## [How can I embed text in nrrd file?](https://discourse.slicer.org/t/how-can-i-embed-text-in-nrrd-file/22260)

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**Author:** [@Sukhe](https://discourse.slicer.org/u/Sukhe)\
**Replies:** 1\
**Last updated:** [March 4, 2022, 9:39pm UTC](https://discourse.slicer.org/t/how-can-i-embed-text-in-nrrd-file/22260 "2022-03-04T21:39:27Z")

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I want to embed text in the MRI nrrd file. Is there any method? Many thanks!

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## [Using landmark registration module to use landmarks with Jupyter](https://discourse.slicer.org/t/using-landmark-registration-module-to-use-landmarks-with-jupyter/22316)

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**Author:** [@sabasa](https://discourse.slicer.org/u/sabasa)\
**Replies:** 0\
**Last updated:** [March 4, 2022, 5:21pm UTC](https://discourse.slicer.org/t/using-landmark-registration-module-to-use-landmarks-with-jupyter/22316 "2022-03-04T17:21:42Z")

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Hi, Operating system: Windows 10 Slicer version: 4.11 Expected behavior: Actually I want to use landmarks at landmarks registration module on 3D Slicer by Jupyter notebook, like I did with 3D Slicer directly (Image bl…

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## [unexpected 3d volume generated](https://discourse.slicer.org/t/unexpected-3d-volume-generated/22259)

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**Author:** [@mann](https://discourse.slicer.org/u/mann)\
**Replies:** 4\
**Last updated:** [March 4, 2022, 2:31pm UTC](https://discourse.slicer.org/t/unexpected-3d-volume-generated/22259 "2022-03-04T14:31:03Z")

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Hi all, I tried to develop cerebral arteries using DSA dicom having multiple slices of axial view. I patched the files using dicom patcher module. And then imported as Dicom data. But the sagittal and coronal views deve…

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## [SlicerIGT cannot use](https://discourse.slicer.org/t/slicerigt-cannot-use/22266)

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**Author:** [@user5](https://discourse.slicer.org/u/user5)\
**Replies:** 6\
**Last updated:** [March 4, 2022, 2:21pm UTC](https://discourse.slicer.org/t/slicerigt-cannot-use/22266 "2022-03-04T14:21:41Z")

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I have built a Slicer project with SlicerVR. I would like to use SlicerIGT in my project, so I directly install SlicerIGT and SlicerIGTLink in extensions-manager. Although I installed it successfully, it cannot open norm…

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## [How can I convert the saved ROI points to voxel coordinates?](https://discourse.slicer.org/t/how-can-i-convert-the-saved-roi-points-to-voxel-coordinates/22309)

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**Author:** [@Toby\_Chen](https://discourse.slicer.org/u/Toby_Chen)\
**Replies:** 0\
**Last updated:** [March 4, 2022, 12:42pm UTC](https://discourse.slicer.org/t/how-can-i-convert-the-saved-roi-points-to-voxel-coordinates/22309 "2022-03-04T12:42:25Z")

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Hi, I am trying to use 3D Slicer as a 3D bounding box labeling tool. I found the feature of creating an ROI in volume rendering. I can save the adjusted ROI as AnnotationROI.acsv. However, I can’t find a way to convert …

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## [Mice CT data (dicom file)](https://discourse.slicer.org/t/mice-ct-data-dicom-file/22212)

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**Author:** [@ylcnkzy](https://discourse.slicer.org/u/ylcnkzy)\
**Replies:** 4\
**Last updated:** [March 4, 2022, 9:00am UTC](https://discourse.slicer.org/t/mice-ct-data-dicom-file/22212 "2022-03-04T09:00:02Z")

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Dear all, I just wonder where I can find some CT images (micro-CT) for mice/rats to practice. Could you please share some with me if you have? ps: I develop a code for autonomous segmentation of mice/rat organs. Kind…

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## [Model coordinates while exporting after segmentation](https://discourse.slicer.org/t/model-coordinates-while-exporting-after-segmentation/22298)

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**Author:** [@Priyanka\_SR](https://discourse.slicer.org/u/Priyanka_SR)\
**Replies:** 2\
**Last updated:** [March 4, 2022, 2:17am UTC](https://discourse.slicer.org/t/model-coordinates-while-exporting-after-segmentation/22298 "2022-03-04T02:17:49Z")

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Operating system: Windows 10 Slicer version: 4.11 Expected behavior: Segmented jaw model coordinates change wile exporting after segmentation. Actual behavior: Model is not aligned to the CT when imported in other sof…

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## [Import DICOMSegmentationPlugin does not work in preview release](https://discourse.slicer.org/t/import-dicomsegmentationplugin-does-not-work-in-preview-release/22289)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 7\
**Last updated:** [March 4, 2022, 12:23am UTC](https://discourse.slicer.org/t/import-dicomsegmentationplugin-does-not-work-in-preview-release/22289 "2022-03-04T00:23:58Z")

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Slicer version 4.13.0, revision 30670, built 2022-03-03, MacOS import DICOMSegmentationPlugin does not work, gives the following error: ModuleNotFoundError: No module named ‘DICOMSegmentationPlugin’

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## [Load an image and a transformation and handle them with the IGT  Volume Reslice Driver module](https://discourse.slicer.org/t/load-an-image-and-a-transformation-and-handle-them-with-the-igt-volume-reslice-driver-module/22300)

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**Author:** [@l2022](https://discourse.slicer.org/u/l2022)\
**Replies:** 0\
**Last updated:** [March 3, 2022, 9:55pm UTC](https://discourse.slicer.org/t/load-an-image-and-a-transformation-and-handle-them-with-the-igt-volume-reslice-driver-module/22300 "2022-03-03T21:55:22Z")

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Hi, I would like to load an image and a transformation matrix in Slicer with Python I would like then to visualise the image in the “red view” for example. Then I would like to convert the image and the transformation…

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## [Slicer does not recognize masks on FLAR21 dataset ](https://discourse.slicer.org/t/slicer-does-not-recognize-masks-on-flar21-dataset/22299)

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**Author:** [@faraz](https://discourse.slicer.org/u/faraz)\
**Replies:** 0\
**Last updated:** [March 3, 2022, 9:55pm UTC](https://discourse.slicer.org/t/slicer-does-not-recognize-masks-on-flar21-dataset/22299 "2022-03-03T21:55:14Z")

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Hello, So when I load the masks from FLAR21 dataset, the slicer does not recognize them as masks, but when I use some other dataset, also with multi-label masks, it does recognize them. Does it have to do with the data…

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## [How to convert volume to label map programmatically](https://discourse.slicer.org/t/how-to-convert-volume-to-label-map-programmatically/22288)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 3\
**Last updated:** [March 3, 2022, 8:30pm UTC](https://discourse.slicer.org/t/how-to-convert-volume-to-label-map-programmatically/22288 "2022-03-03T20:30:10Z")

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I know how to do it in the GUI (go to ‘Volumes’ and at the bottom of ‘Volume Information’ go to ‘Convert to label map’). I found the corresponding function to be: void qSlicerVolumesModuleWidget::convertVolume() But I…

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## [Is it possible to average CT series on 3D slicer?](https://discourse.slicer.org/t/is-it-possible-to-average-ct-series-on-3d-slicer/22296)

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**Author:** [@Kawtar\_Lakrad](https://discourse.slicer.org/u/Kawtar_Lakrad)\
**Replies:** 0\
**Last updated:** [March 3, 2022, 8:07pm UTC](https://discourse.slicer.org/t/is-it-possible-to-average-ct-series-on-3d-slicer/22296 "2022-03-03T20:07:43Z")

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Operating system: windows Slicer version: 4.13 Hello, I was wondering if there is a tool that can help me average CT series on 3D slice. Thank you so much.

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## [How to subtract pre CT images from post images](https://discourse.slicer.org/t/how-to-subtract-pre-ct-images-from-post-images/22206)

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**Author:** [@Kawtar\_Lakrad](https://discourse.slicer.org/u/Kawtar_Lakrad)\
**Replies:** 2\
**Last updated:** [March 3, 2022, 8:05pm UTC](https://discourse.slicer.org/t/how-to-subtract-pre-ct-images-from-post-images/22206 "2022-03-03T20:05:26Z")

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Operating system: windows 11 Slicer version: 4.13 Expected behavior: no idea Actual behavior: no idea I am trying to subtract pre CTs from post CTs, and I was wondering if it is feasible using 3D slicer? Thank you s…

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## [DynamicModeler hole-size-threshold for surface-capping?](https://discourse.slicer.org/t/dynamicmodeler-hole-size-threshold-for-surface-capping/22272)

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**Author:** [@Fluvio\_Lobo](https://discourse.slicer.org/u/Fluvio_Lobo)\
**Replies:** 1\
**Last updated:** [March 3, 2022, 7:50pm UTC](https://discourse.slicer.org/t/dynamicmodeler-hole-size-threshold-for-surface-capping/22272 "2022-03-03T19:50:15Z")

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Hello, Is there a way to control the “surface capping” option or feature of the DynamicModeler’s PlaneCut function? I am using the PlaceCut function to transform dental impressions into dental splints, but I am struggl…

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## [Import rclpy in scripted module](https://discourse.slicer.org/t/import-rclpy-in-scripted-module/22249)

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**Author:** [@LauraConnolly](https://discourse.slicer.org/u/LauraConnolly)\
**Replies:** 3\
**Last updated:** [March 3, 2022, 6:43pm UTC](https://discourse.slicer.org/t/import-rclpy-in-scripted-module/22249 "2022-03-03T18:43:43Z")

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Hi there! I’m trying to import a python library called rclpy into a scripted module, the import is working in a regular python file (outside of Slicer) on Linux but I don’t think it’s supported by pip - I followed these …

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## [Export a volume to DICOM format - missing metadata](https://discourse.slicer.org/t/export-a-volume-to-dicom-format-missing-metadata/22182)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 1\
**Last updated:** [March 3, 2022, 2:15pm UTC](https://discourse.slicer.org/t/export-a-volume-to-dicom-format-missing-metadata/22182 "2022-03-03T14:15:44Z")

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I followed the example from Export a volume to DICOM file format. It successfully exported a volume, however, when I load the exported DICOM back to Slicer the study and patient name are missing: Maybe I misunderstoo…

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## [Save .nrrd file into STL file](https://discourse.slicer.org/t/save-nrrd-file-into-stl-file/4954)

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**Author:** [@M\_pavi](https://discourse.slicer.org/u/M_pavi)\
**Replies:** 5\
**Last updated:** [March 3, 2022, 9:08am UTC](https://discourse.slicer.org/t/save-nrrd-file-into-stl-file/4954 "2022-03-03T09:08:10Z")

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Can we save full .nrrd file to STL file without doing any segmentation ?

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## [Subject hierarchy changes after reloading .mrb](https://discourse.slicer.org/t/subject-hierarchy-changes-after-reloading-mrb/22216)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 5\
**Last updated:** [March 3, 2022, 8:58am UTC](https://discourse.slicer.org/t/subject-hierarchy-changes-after-reloading-mrb/22216 "2022-03-03T08:58:03Z")

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I have the same issue as described in Save subject hierarchy, only with volumes and not models. Load some data into Slicer Create a folder hierarchy Place the loaded volumes into the folders Save everything as an .mrb …

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## [Mandible spharm pdm](https://discourse.slicer.org/t/mandible-spharm-pdm/22273)

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**Author:** [@lili-yu22](https://discourse.slicer.org/u/lili-yu22)\
**Replies:** 0\
**Last updated:** [March 3, 2022, 2:28am UTC](https://discourse.slicer.org/t/mandible-spharm-pdm/22273 "2022-03-03T02:28:24Z")

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Dear expert first，l segment the mandible，then split it into two half. 2.l choose the right part，then copy it .l cut the copy short. 3.then both part use spharm-pdm. 4. in the modeltomodeldistance the right mandible…

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## [Translation files](https://discourse.slicer.org/t/translation-files/22242)

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**Author:** [@Maite\_Guix](https://discourse.slicer.org/u/Maite_Guix)\
**Replies:** 5\
**Last updated:** [March 2, 2022, 4:02pm UTC](https://discourse.slicer.org/t/translation-files/22242 "2022-03-02T16:02:32Z")

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the file that I downloaded \*.po has the source in the translation and so I cannot pre-translate with poedit and it is much more work, can someone leave the Catalan field blank?

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