# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=327

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

**Page:** 328

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## [Link slices views by default?](https://discourse.slicer.org/t/link-slices-views-by-default/1934)

<div class="topic-metadata">

**Author:** [@gcsharp](https://discourse.slicer.org/u/gcsharp)\
**Replies:** 11\
**Last updated:** [August 11, 2020, 1:29pm UTC](https://discourse.slicer.org/t/link-slices-views-by-default/1934 "2020-08-11T13:29:19Z")

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Every time I load a close a scene or restart slicer, the slice views become unlinked. Is there a way to make them linked by default?

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## [The SlicerDMRI extension is currently unavailable](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12894)

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**Author:** [@Mohammed\_Alahmari](https://discourse.slicer.org/u/Mohammed_Alahmari)\
**Replies:** 3\
**Last updated:** [August 11, 2020, 10:21am UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12894 "2020-08-11T10:21:09Z")

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Operating system:Windows 10 Slicer version:4.10.2 Expected behavior: Actual behavior: Hi there, I tried to install the slicer DMRI extension in both versions stable and preview but received the following message (The…

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## [How to increase the image quality when I convert Dicom file to nii file](https://discourse.slicer.org/t/how-to-increase-the-image-quality-when-i-convert-dicom-file-to-nii-file/12928)

<div class="topic-metadata">

**Author:** [@samsonaie](https://discourse.slicer.org/u/samsonaie)\
**Replies:** 3\
**Last updated:** [August 11, 2020, 3:14am UTC](https://discourse.slicer.org/t/how-to-increase-the-image-quality-when-i-convert-dicom-file-to-nii-file/12928 "2020-08-11T03:14:25Z")

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Hi There, I had successfully converted a 3D ultrasound dicom file into a nii file. I am doing this because I can use a python script to convert nii file to a series of image (png) file with X/Y/Z dimension info. Howev…

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## [Latest Slicer Preview Release crashes randomly on macOS Catalina](https://discourse.slicer.org/t/latest-slicer-preview-release-crashes-randomly-on-macos-catalina/12759)

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**Author:** [@Fernando](https://discourse.slicer.org/u/Fernando)\
**Replies:** 16\
**Last updated:** [August 11, 2020, 1:47am UTC](https://discourse.slicer.org/t/latest-slicer-preview-release-crashes-randomly-on-macos-catalina/12759 "2020-08-11T01:47:06Z")

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Unfortunately, I can’t consistently reproduce this, but in the last couple of weeks Slicer has crashed many times. Today it’s happened when playing with the threshold in the Volumes module, but I’m not sure it’s related …

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## [Options while viewing image](https://discourse.slicer.org/t/options-while-viewing-image/12936)

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**Author:** [@rohan\_n](https://discourse.slicer.org/u/rohan_n)\
**Replies:** 0\
**Last updated:** [August 10, 2020, 11:54pm UTC](https://discourse.slicer.org/t/options-while-viewing-image/12936 "2020-08-10T23:54:46Z")

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Does Slicer 4.11.0 have built in button options or Python commands to do the following(?): -Display orientation labels L/R & A/P on the red slice or A/P & H/F on the yellow slice -Overlay printout of slider position in…

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## [Adding effects for segmentation and segment editor](https://discourse.slicer.org/t/adding-effects-for-segmentation-and-segment-editor/12935)

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**Author:** [@arifeuzundurukan](https://discourse.slicer.org/u/arifeuzundurukan)\
**Replies:** 1\
**Last updated:** [August 10, 2020, 9:19pm UTC](https://discourse.slicer.org/t/adding-effects-for-segmentation-and-segment-editor/12935 "2020-08-10T21:19:08Z")

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Hello everyone, I dowloaded Slicer 4.10.2. in this moning and I am so new in this software. I just would like to ask you that where I can add extra effect. When I watch some video on Youtube, I saw that their software h…

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## [Define field of view](https://discourse.slicer.org/t/define-field-of-view/12933)

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**Author:** [@jj31](https://discourse.slicer.org/u/jj31)\
**Replies:** 2\
**Last updated:** [August 10, 2020, 7:08pm UTC](https://discourse.slicer.org/t/define-field-of-view/12933 "2020-08-10T19:08:56Z")

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Hello, I developed a small simple module to open a VTK/VTU file and perform a series of calculations. Every time I open the file, I need to manually adjust the field of view (zoom and move to the center of the window vi…

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## [Google Health API](https://discourse.slicer.org/t/google-health-api/12927)

<div class="topic-metadata">

**Author:** [@howardlander](https://discourse.slicer.org/u/howardlander)\
**Replies:** 12\
**Last updated:** [August 10, 2020, 6:48pm UTC](https://discourse.slicer.org/t/google-health-api/12927 "2020-08-10T18:48:19Z")

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Has anyone tried to feed DICOM data to the Slicer from the Google Health API? If so, any advice on how to do so? Thanks Howard

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## [Segments disappeared!](https://discourse.slicer.org/t/segments-disappeared/12698)

<div class="topic-metadata">

**Author:** [@skentis](https://discourse.slicer.org/u/skentis)\
**Replies:** 3\
**Last updated:** [August 10, 2020, 4:02pm UTC](https://discourse.slicer.org/t/segments-disappeared/12698 "2020-08-10T16:02:58Z")

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Problem report for Slicer 4.10.2 macosx-amd64: \[please describe expected and actual behavior\] Hi I was using segment editor to annotate MRI images and saving regularly onto a server (but never actually closing slicer). W…

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## [Nifti data from the HCP import via DWI Convert Module](https://discourse.slicer.org/t/nifti-data-from-the-hcp-import-via-dwi-convert-module/12913)

<div class="topic-metadata">

**Author:** [@hercp](https://discourse.slicer.org/u/hercp)\
**Replies:** 1\
**Last updated:** [August 10, 2020, 3:58pm UTC](https://discourse.slicer.org/t/nifti-data-from-the-hcp-import-via-dwi-convert-module/12913 "2020-08-10T15:58:41Z")

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I’m using 3D Slicer 4.10.2 on a Windows 10 system. I’m trying to convert DTI Nifti data from the HCP import via DWI Convert Module (the data come from http://www.humanconnectomeproject.org/) I receive the following err…

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## [Detection annotation similiar to labelme](https://discourse.slicer.org/t/detection-annotation-similiar-to-labelme/12860)

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**Author:** [@ButuiHu](https://discourse.slicer.org/u/ButuiHu)\
**Replies:** 8\
**Last updated:** [August 10, 2020, 1:20pm UTC](https://discourse.slicer.org/t/detection-annotation-similiar-to-labelme/12860 "2020-08-10T13:20:39Z")

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Hi, I’m looking for an annotation tool like label for medical images. Is there something similar to labelme? I would like to draw a bounding box to annotate the detected tumor or structure. It would be even greater if I …

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## [Python files failed to load as module](https://discourse.slicer.org/t/python-files-failed-to-load-as-module/12895)

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**Author:** [@amnaislam](https://discourse.slicer.org/u/amnaislam)\
**Replies:** 2\
**Last updated:** [August 8, 2020, 5:54am UTC](https://discourse.slicer.org/t/python-files-failed-to-load-as-module/12895 "2020-08-08T05:54:04Z")

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Operating system:Windows 64 Slicer version:4.11 Expected behavior:To load installed extension such as SlicerRT, Quantitative Reporting and its dependencies. Actual behavior: Python files from the path fails to load as…

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## [Update model node color once the node is selected](https://discourse.slicer.org/t/update-model-node-color-once-the-node-is-selected/12704)

<div class="topic-metadata">

**Author:** [@szhang](https://discourse.slicer.org/u/szhang)\
**Replies:** 11\
**Last updated:** [August 8, 2020, 2:49am UTC](https://discourse.slicer.org/t/update-model-node-color-once-the-node-is-selected/12704 "2020-08-08T02:49:49Z")

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Hello, I would like to learn in a scripted module, how to update the model color display once the model is selected in the slicer.qMRMLNodeComboBox() type of drop-down menu. For example, is it about to update this line?…

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## [How to display voxel intensities](https://discourse.slicer.org/t/how-to-display-voxel-intensities/12900)

<div class="topic-metadata">

**Author:** [@Vinny](https://discourse.slicer.org/u/Vinny)\
**Replies:** 6\
**Last updated:** [August 7, 2020, 11:31pm UTC](https://discourse.slicer.org/t/how-to-display-voxel-intensities/12900 "2020-08-07T23:31:25Z")

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Hi, I have a NIFTI image of a tract that contains different voxel intensities. In fsleyes, I am able to view the different intensities for each voxel. However, when I import the image into 3D Slicer, the image is dis…

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## [Could not load 308: 3D THORACIC SPINE as Scalar Volume](https://discourse.slicer.org/t/could-not-load-308-3d-thoracic-spine-as-scalar-volume/12899)

<div class="topic-metadata">

**Author:** [@kevinhartl](https://discourse.slicer.org/u/kevinhartl)\
**Replies:** 2\
**Last updated:** [August 7, 2020, 9:16pm UTC](https://discourse.slicer.org/t/could-not-load-308-3d-thoracic-spine-as-scalar-volume/12899 "2020-08-07T21:16:52Z")

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Trying to load a CT and getting the Scalar Volume error. Could this be as simple as the colon in the series name?

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## [Stereoscopic 3D view](https://discourse.slicer.org/t/stereoscopic-3d-view/12892)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 3\
**Last updated:** [August 7, 2020, 5:40pm UTC](https://discourse.slicer.org/t/stereoscopic-3d-view/12892 "2020-08-07T17:40:57Z")

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I wish to experiment the stereoscopic settings of the 3D view. It offers four types of display (red/blue, anaglyph…). Different kinds of glasses are available in retail shops, red/blue being most common and cheap. But i…

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## [Rescale voxel values of CBCT to MDCT HU](https://discourse.slicer.org/t/rescale-voxel-values-of-cbct-to-mdct-hu/12876)

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**Author:** [@ahmad\_abbas](https://discourse.slicer.org/u/ahmad_abbas)\
**Replies:** 4\
**Last updated:** [August 7, 2020, 3:15am UTC](https://discourse.slicer.org/t/rescale-voxel-values-of-cbct-to-mdct-hu/12876 "2020-08-07T03:15:15Z")

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I have a CBCT and MDCT of the same specimen and I want to “convert” the grey values in CBCT accordingly the ones in MDCT and consequently be able to measure “HU” values in the CBCT volume?

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## [I did have a trouble to hide legends](https://discourse.slicer.org/t/i-did-have-a-trouble-to-hide-legends/12878)

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**Author:** [@aiden.zhu](https://discourse.slicer.org/u/aiden.zhu)\
**Replies:** 6\
**Last updated:** [August 6, 2020, 11:35pm UTC](https://discourse.slicer.org/t/i-did-have-a-trouble-to-hide-legends/12878 "2020-08-06T23:35:12Z")

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Operating system: windows Slicer version: 4.11.0 Expected behavior: Hide legends by LegendVisibilityOff() Actual behavior: can’t turn legends off via cripts I used the help file via the site: https://www.slicer.org/w…

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## [Is there a possibility to clean noises from a CBCT?](https://discourse.slicer.org/t/is-there-a-possibility-to-clean-noises-from-a-cbct/10359)

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**Author:** [@Avri\_Lev](https://discourse.slicer.org/u/Avri_Lev)\
**Replies:** 2\
**Last updated:** [February 20, 2020, 12:10pm UTC](https://discourse.slicer.org/t/is-there-a-possibility-to-clean-noises-from-a-cbct/10359 "2020-02-20T12:10:08Z")

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Hi guys, I got this segmentation of the Maxilla. It got “noises” especially around the front teeth from URC to ULC, as you can see in the photo. Is there a way to eliminate/reduce that noise? TIA

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## [How to setup a chart range of X/Y axies, via python scripts?](https://discourse.slicer.org/t/how-to-setup-a-chart-range-of-x-y-axies-via-python-scripts/12869)

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**Author:** [@aiden.zhu](https://discourse.slicer.org/u/aiden.zhu)\
**Replies:** 2\
**Last updated:** [August 6, 2020, 1:48pm UTC](https://discourse.slicer.org/t/how-to-setup-a-chart-range-of-x-y-axies-via-python-scripts/12869 "2020-08-06T13:48:27Z")

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Operating system: windows Slicer version: 4.11.0 Expected behavior: change X/Y axes minimum and maximum in charts Actual behavior: Hi all, I am still trying to use a Chart (slicer.vtkMRMLChartNode()) but I am stuck …

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## [Crash after returning from hybernation](https://discourse.slicer.org/t/crash-after-returning-from-hybernation/12862)

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**Author:** [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Replies:** 8\
**Last updated:** [August 6, 2020, 12:09pm UTC](https://discourse.slicer.org/t/crash-after-returning-from-hybernation/12862 "2020-08-06T12:09:16Z")

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This happened to me in MacOS, Linux and Windows. After returning from hybernation Slicer crashes when making any operation. In MacOS it reports this Process: Slicer \[1737\] Path: /Applicati…

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## [Process nice/priority on linux](https://discourse.slicer.org/t/process-nice-priority-on-linux/6661)

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**Author:** [@gcsharp](https://discourse.slicer.org/u/gcsharp)\
**Replies:** 8\
**Last updated:** [August 6, 2020, 10:43am UTC](https://discourse.slicer.org/t/process-nice-priority-on-linux/6661 "2020-08-06T10:43:05Z")

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Hi, I just noticed that my Slicer sets itself to a nice value of 19 on linux. (I noticed this because I let a colleague run some jobs on my desktop.) What is going on? Is there any way to run it at nice = 0?

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## [Open3d pip\_install error on Mac](https://discourse.slicer.org/t/open3d-pip-install-error-on-mac/12867)

<div class="topic-metadata">

**Author:** [@smrolfe](https://discourse.slicer.org/u/smrolfe)\
**Replies:** 5\
**Last updated:** [August 5, 2020, 11:31pm UTC](https://discourse.slicer.org/t/open3d-pip-install-error-on-mac/12867 "2020-08-05T23:31:37Z")

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I’ve been installing open3d on my Mac Catalina using: slicer.util.pip\_install('open3d==0.9.0') with no problem up until about 2 days ago. With today’s preview I’m getting the following errors: /Applications/Xcode.app/…

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## [DICOM import "single file" checkboxes](https://discourse.slicer.org/t/dicom-import-single-file-checkboxes/12866)

<div class="topic-metadata">

**Author:** [@briannawhitener](https://discourse.slicer.org/u/briannawhitener)\
**Replies:** 1\
**Last updated:** [August 5, 2020, 5:03pm UTC](https://discourse.slicer.org/t/dicom-import-single-file-checkboxes/12866 "2020-08-05T17:03:34Z")

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when importing dicom files (in this case, from a disk from outside facility), each slice comes in as a separate file. I’ve found where to show options and uncheck each box for “single file” but this must be done on EVERY…

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## [How to solve the error when swiss skull stripper is running in windows system](https://discourse.slicer.org/t/how-to-solve-the-error-when-swiss-skull-stripper-is-running-in-windows-system/12817)

<div class="topic-metadata">

**Author:** [@Ace](https://discourse.slicer.org/u/Ace)\
**Replies:** 3\
**Last updated:** [August 5, 2020, 4:18am UTC](https://discourse.slicer.org/t/how-to-solve-the-error-when-swiss-skull-stripper-is-running-in-windows-system/12817 "2020-08-05T04:18:04Z")

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Operating system:windows 10 pro Slicer version:4.10.2 Expected behavior:I hope to achieve skull stripping for sMRI brain images Actual behavior:When I run it, it will remind me “completed with errors”, and the log fil…

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## [Loading DICOM files with python script for Mac](https://discourse.slicer.org/t/loading-dicom-files-with-python-script-for-mac/12855)

<div class="topic-metadata">

**Author:** [@epearlstone](https://discourse.slicer.org/u/epearlstone)\
**Replies:** 6\
**Last updated:** [August 4, 2020, 6:30pm UTC](https://discourse.slicer.org/t/loading-dicom-files-with-python-script-for-mac/12855 "2020-08-04T18:30:23Z")

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I am having trouble loading in DICOM files using the python script given in the Slicer python script repository. I am using a Mac computer and Slicer 4.11. Does anyone have a solution? dicomDataDir = “”~/Users/epstone/…

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## [Segment Editor functions don't work past specific slice in DICOM series](https://discourse.slicer.org/t/segment-editor-functions-dont-work-past-specific-slice-in-dicom-series/12839)

<div class="topic-metadata">

**Author:** [@Otoco](https://discourse.slicer.org/u/Otoco)\
**Replies:** 3\
**Last updated:** [August 4, 2020, 5:14pm UTC](https://discourse.slicer.org/t/segment-editor-functions-dont-work-past-specific-slice-in-dicom-series/12839 "2020-08-04T17:14:56Z")

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Hello all, I’ve been spending the last few weeks segmenting skull bones using CT skull DICOMs for research purposes. I got a fantastic solution with the help of the users of this forum last time - my current problem is …

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## [Question about patient ID](https://discourse.slicer.org/t/question-about-patient-id/11203)

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**Author:** [@codecrazer](https://discourse.slicer.org/u/codecrazer)\
**Replies:** 4\
**Last updated:** [August 4, 2020, 4:23pm UTC](https://discourse.slicer.org/t/question-about-patient-id/11203 "2020-08-04T16:23:59Z")

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When I try to convert from DICOM to NRRD, I have to rename both image and segmentation, and this is an error-prone process. Is it possible for me to check the patient ID in the NRRD file, thanks for your help!

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## [DICOM RTSTRUCT changed after segment editor](https://discourse.slicer.org/t/dicom-rtstruct-changed-after-segment-editor/12833)

<div class="topic-metadata">

**Author:** [@wuchuanjen](https://discourse.slicer.org/u/wuchuanjen)\
**Replies:** 5\
**Last updated:** [August 4, 2020, 2:03pm UTC](https://discourse.slicer.org/t/dicom-rtstruct-changed-after-segment-editor/12833 "2020-08-04T14:03:00Z")

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Operating system:windows 10 Slicer version:4.10.2 Expected behavior:export dicom RTSTRUCT correctly Actual behavior: First I loaded Dicom with RTSTRUCT, then I just wanted to modify one segment a little bit using seg…

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## [Display issues - green stripes](https://discourse.slicer.org/t/display-issues-green-stripes/12849)

<div class="topic-metadata">

**Author:** [@Dr\_Anand](https://discourse.slicer.org/u/Dr_Anand)\
**Replies:** 1\
**Last updated:** [August 4, 2020, 12:22pm UTC](https://discourse.slicer.org/t/display-issues-green-stripes/12849 "2020-08-04T12:22:21Z")

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Operating system: windows 3d Slicer version: 4.10.2 Expected behavior: clear display Actual behavior: display error

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