# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=347

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

**Page:** 348

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## [Adjustable width for DICOM browser columns](https://discourse.slicer.org/t/adjustable-width-for-dicom-browser-columns/10862)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 4\
**Last updated:** [March 26, 2020, 9:58pm UTC](https://discourse.slicer.org/t/adjustable-width-for-dicom-browser-columns/10862 "2020-03-26T21:58:06Z")

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It appears that only 1 column in the DICOM has resizable width. Can this be fixed? Is this in CTK?

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## [Loading dicom directory into scene and obtaining master volume node](https://discourse.slicer.org/t/loading-dicom-directory-into-scene-and-obtaining-master-volume-node/10837)

<div class="topic-metadata">

**Author:** [@Queen\_Rei](https://discourse.slicer.org/u/Queen_Rei)\
**Replies:** 10\
**Last updated:** [March 26, 2020, 9:22pm UTC](https://discourse.slicer.org/t/loading-dicom-directory-into-scene-and-obtaining-master-volume-node/10837 "2020-03-26T21:22:59Z")

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Heya once again~ I am trying to get three things working. Load a dicom directory and have it render in the scene. Right now I have it working with a specific patient id, but I wanted to know if there is a better way o…

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## [qMRMLSliceWidget has no attribute named 'imageData'](https://discourse.slicer.org/t/qmrmlslicewidget-has-no-attribute-named-imagedata/10851)

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**Author:** [@aaron.b.tanenbaum](https://discourse.slicer.org/u/aaron.b.tanenbaum)\
**Replies:** 3\
**Last updated:** [March 26, 2020, 9:11pm UTC](https://discourse.slicer.org/t/qmrmlslicewidget-has-no-attribute-named-imagedata/10851 "2020-03-26T21:11:52Z")

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I am using Slicer version 4.3.1 on ubuntu 16.04. I am getting the error qMRMLSliceWidget has no attribute named ‘imageData’ Does any know why this is happening?

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## [How to export the Volume Rendering into models?](https://discourse.slicer.org/t/how-to-export-the-volume-rendering-into-models/1019)

<div class="topic-metadata">

**Author:** [@doc-xie](https://discourse.slicer.org/u/doc-xie)\
**Replies:** 13\
**Last updated:** [March 26, 2020, 7:56pm UTC](https://discourse.slicer.org/t/how-to-export-the-volume-rendering-into-models/1019 "2020-03-26T19:56:24Z")

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Hello,everyone! How to explore the result of Volume Rendering into models?

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## [Batch creation of mrml scenes](https://discourse.slicer.org/t/batch-creation-of-mrml-scenes/10861)

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**Author:** [@Masteling](https://discourse.slicer.org/u/Masteling)\
**Replies:** 2\
**Last updated:** [March 26, 2020, 7:43pm UTC](https://discourse.slicer.org/t/batch-creation-of-mrml-scenes/10861 "2020-03-26T19:43:52Z")

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I have a series of 3D ultrasounds that I converted to mhd+raw files. I want to automate the creation of mrml scenes for all my files (\> 500 files), to make it easier to visualize by others. Goal: import mhd+raw -\> save…

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## [Export to DICOM](https://discourse.slicer.org/t/export-to-dicom/10860)

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**Author:** [@Anonymous2](https://discourse.slicer.org/u/Anonymous2)\
**Replies:** 1\
**Last updated:** [March 26, 2020, 6:55pm UTC](https://discourse.slicer.org/t/export-to-dicom/10860 "2020-03-26T18:55:55Z")

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Hello, I am wondering what it means when Slicer says 2. Select export type: Scalar Volume (50%, 1 series) (DICOMScalarVolumePlugin) after right clicking my data and selecting Export to DICOM… Could you please explain wh…

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## [SlicerDMRI Unavailable for download](https://discourse.slicer.org/t/slicerdmri-unavailable-for-download/10857)

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**Author:** [@kellysch](https://discourse.slicer.org/u/kellysch)\
**Replies:** 2\
**Last updated:** [March 26, 2020, 6:34pm UTC](https://discourse.slicer.org/t/slicerdmri-unavailable-for-download/10857 "2020-03-26T18:34:46Z")

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Operating system: macOS Mojave Slicer version: 4.11.0 Expected behavior: Download SlicerDMRI Actual behavior: I have tried multiple times with restarting slicer and I received this error message “The SlicerDMRI extens…

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## [No mac extensions today - 2020-03-26](https://discourse.slicer.org/t/no-mac-extensions-today-2020-03-26/10850)

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**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 1\
**Last updated:** [March 26, 2020, 3:27pm UTC](https://discourse.slicer.org/t/no-mac-extensions-today-2020-03-26/10850 "2020-03-26T15:27:40Z")

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There seems to be no extensions built for mac today for Slicer Preview Release (http://slicer.cdash.org/index.php?project=SlicerPreview). @Sam\_Horvath could you please have a look? Thank you!

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## [Who uses Lightbox view?](https://discourse.slicer.org/t/who-uses-lightbox-view/495)

<div class="topic-metadata">

**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 3\
**Last updated:** [March 25, 2020, 11:32pm UTC](https://discourse.slicer.org/t/who-uses-lightbox-view/495 "2020-03-25T23:32:11Z")

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Slicer can show a lightbox view of slices (mosaic of slightly shifted views along the slice normal). The view can be activated in slice view controller by clicking on the lightbox icon and selecting number of views to sh…

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## [Visualization of segmentations in lightbox view](https://discourse.slicer.org/t/visualization-of-segmentations-in-lightbox-view/3655)

<div class="topic-metadata">

**Author:** [@dcantor](https://discourse.slicer.org/u/dcantor)\
**Replies:** 7\
**Last updated:** [March 25, 2020, 11:31pm UTC](https://discourse.slicer.org/t/visualization-of-segmentations-in-lightbox-view/3655 "2020-03-25T23:31:12Z")

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Hello slicers! I just noticed that segmentations do not appear in the Lightbox view. I am attaching an image for reference: In my example, the segmentation occurs over a series of consecutive slices but it does not…

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## [Margin tool stopped reporting the pixel units](https://discourse.slicer.org/t/margin-tool-stopped-reporting-the-pixel-units/10749)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 4\
**Last updated:** [March 25, 2020, 4:27pm UTC](https://discourse.slicer.org/t/margin-tool-stopped-reporting-the-pixel-units/10749 "2020-03-25T16:27:09Z")

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In about a month ago, Margin tool used to have a field that converted margins to actual pixel based on the voxel dimension: This now disappeared, which is sort of a big deal for our use cases with sub-millimeter voxel s…

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## [Volume measurement](https://discourse.slicer.org/t/volume-measurement/10832)

<div class="topic-metadata">

**Author:** [@Sami\_Fattouh](https://discourse.slicer.org/u/Sami_Fattouh)\
**Replies:** 1\
**Last updated:** [March 25, 2020, 3:51pm UTC](https://discourse.slicer.org/t/volume-measurement/10832 "2020-03-25T15:51:36Z")

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hello what is the best way to measure the exact volume of a specific area

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## [Right atrial Segmetnation ?](https://discourse.slicer.org/t/right-atrial-segmetnation/10828)

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**Author:** [@Carlos\_Arrieta](https://discourse.slicer.org/u/Carlos_Arrieta)\
**Replies:** 1\
**Last updated:** [March 25, 2020, 2:10pm UTC](https://discourse.slicer.org/t/right-atrial-segmetnation/10828 "2020-03-25T14:10:02Z")

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Any tutorials on segmentation of right atria and ventricle ? I am able to do the LA and LV well but get into issues when trying to segment right sided strictures from a cardiac CT

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## [Threshold segmentation tool](https://discourse.slicer.org/t/threshold-segmentation-tool/10827)

<div class="topic-metadata">

**Author:** [@gbolaga](https://discourse.slicer.org/u/gbolaga)\
**Replies:** 1\
**Last updated:** [March 25, 2020, 12:43pm UTC](https://discourse.slicer.org/t/threshold-segmentation-tool/10827 "2020-03-25T12:43:50Z")

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Hello, I am using the segmentation tool in order to segment calcium from other structures within png IVUS frames. I created a 3D model and I am able to use thresholding. The problem is that there are no measure units. W…

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## [Can't save mrb bundle](https://discourse.slicer.org/t/cant-save-mrb-bundle/10813)

<div class="topic-metadata">

**Author:** [@PalkoD](https://discourse.slicer.org/u/PalkoD)\
**Replies:** 2\
**Last updated:** [March 25, 2020, 11:15am UTC](https://discourse.slicer.org/t/cant-save-mrb-bundle/10813 "2020-03-25T11:15:57Z")

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Operating system: macOS Catalina 10.15.2 Slicer version: 4.11.0 Expected behavior: Save the scene Actual behavior: Error saying could not make temp directory Hi! I’m new to slicer and just scratching the surface. I …

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## [Broken link for uploaded file on Slicer wiki](https://discourse.slicer.org/t/broken-link-for-uploaded-file-on-slicer-wiki/9237)

<div class="topic-metadata">

**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 6\
**Last updated:** [November 26, 2019, 3:03pm UTC](https://discourse.slicer.org/t/broken-link-for-uploaded-file-on-slicer-wiki/9237 "2019-11-26T15:03:57Z")

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Today I discovered that a PDF linked from a documentation wiki page disappeared (wiki page: https://www.slicer.org/wiki/Documentation/Nightly/Modules/MultiVolumeExplorer, broken link: https://www.slicer.org/slicerWiki/im…

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## [Module disappearing after restarting](https://discourse.slicer.org/t/module-disappearing-after-restarting/10818)

<div class="topic-metadata">

**Author:** [@Queen\_Rei](https://discourse.slicer.org/u/Queen_Rei)\
**Replies:** 3\
**Last updated:** [March 24, 2020, 10:32pm UTC](https://discourse.slicer.org/t/module-disappearing-after-restarting/10818 "2020-03-24T22:32:42Z")

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Howdy~ I have run into an issue where when I add these lines of code: loadedVolumeNode = slicer.util.loadVolume(‘Z:/Something/LumbarCT’, {}, returnNode=True) vol=slicer.util.getNode(‘Lumbar\*’) vol.GetImageData().GetD…

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## [Sequence browser - proxy node data types?](https://discourse.slicer.org/t/sequence-browser-proxy-node-data-types/10775)

<div class="topic-metadata">

**Author:** [@hnisar3](https://discourse.slicer.org/u/hnisar3)\
**Replies:** 3\
**Last updated:** [March 24, 2020, 8:25pm UTC](https://discourse.slicer.org/t/sequence-browser-proxy-node-data-types/10775 "2020-03-24T20:25:05Z")

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Operating system: Windows 10 Slicer version: 4.11.0-2019-07-23 Expected behavior: I am streaming data through PLUS and using OpenIGTLinkIF. Data includes a transform, an image and a string (text read from the image by…

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## [Importing classes/functions from scripts I built while coding a new module crashes it ](https://discourse.slicer.org/t/importing-classes-functions-from-scripts-i-built-while-coding-a-new-module-crashes-it/10816)

<div class="topic-metadata">

**Author:** [@Yana\_Podolsky](https://discourse.slicer.org/u/Yana_Podolsky)\
**Replies:** 3\
**Last updated:** [March 24, 2020, 3:58pm UTC](https://discourse.slicer.org/t/importing-classes-functions-from-scripts-i-built-while-coding-a-new-module-crashes-it/10816 "2020-03-24T15:58:48Z")

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While writing a new module in a new extension using python I want to be able to use classes and\\or functions from outer scripts (.py file) which I wrote by using: “from FolderName.FileName import FunctionName” Every ti…

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## [Source code of SetVolumeRenderingQuality](https://discourse.slicer.org/t/source-code-of-setvolumerenderingquality/10811)

<div class="topic-metadata">

**Author:** [@joechenrh](https://discourse.slicer.org/u/joechenrh)\
**Replies:** 1\
**Last updated:** [March 24, 2020, 10:26am UTC](https://discourse.slicer.org/t/source-code-of-setvolumerenderingquality/10811 "2020-03-24T10:26:54Z")

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Hello, I want to know the implemention of SetVolumeRenderingQuality which control the quality of volume rendering, I search the whole project but I canot find it. Could you help me? Thanks!

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## [Slicer download links out of date](https://discourse.slicer.org/t/slicer-download-links-out-of-date/10747)

<div class="topic-metadata">

**Author:** [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Replies:** 8\
**Last updated:** [March 24, 2020, 1:27am UTC](https://discourse.slicer.org/t/slicer-download-links-out-of-date/10747 "2020-03-24T01:27:04Z")

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The preview release links at https://download.slicer.org/ haven’t been updated since the 16th.

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## [PaintEffect doesn't retain](https://discourse.slicer.org/t/painteffect-doesnt-retain/10803)

<div class="topic-metadata">

**Author:** [@orchid](https://discourse.slicer.org/u/orchid)\
**Replies:** 4\
**Last updated:** [March 23, 2020, 9:14pm UTC](https://discourse.slicer.org/t/painteffect-doesnt-retain/10803 "2020-03-23T21:14:51Z")

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Hello, I am a newbie for 3D Slicer. I have 4.10.0 version. I use ‘Threshold effect’ to get the majority of my model and then try to use ‘PaintEffect’ to pick up the ones I missed. I have checked ‘sphere’ and ‘threshold…

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## [Reducing size of segmentation](https://discourse.slicer.org/t/reducing-size-of-segmentation/10774)

<div class="topic-metadata">

**Author:** [@Aep93](https://discourse.slicer.org/u/Aep93)\
**Replies:** 4\
**Last updated:** [March 23, 2020, 7:09pm UTC](https://discourse.slicer.org/t/reducing-size-of-segmentation/10774 "2020-03-23T19:09:09Z")

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Hello all, I am wondering whether there is a way to reduce the size of my segmentation. I have a segmentation which size is about 3 GB and it needs a lot of time when I want to mesh it in segment-mesher module. I do not…

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## [Error when editing segmentations](https://discourse.slicer.org/t/error-when-editing-segmentations/10797)

<div class="topic-metadata">

**Author:** [@KassandraFord](https://discourse.slicer.org/u/KassandraFord)\
**Replies:** 2\
**Last updated:** [March 23, 2020, 6:03pm UTC](https://discourse.slicer.org/t/error-when-editing-segmentations/10797 "2020-03-23T18:03:37Z")

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Problem report for Slicer 4.11.0-2020-03-15 win-amd64: \[please describe expected and actual behavior\] This error has happened several times in the last week. I have tried downloading the new preview versions of Slicer, …

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## [Default setting for different modules](https://discourse.slicer.org/t/default-setting-for-different-modules/10758)

<div class="topic-metadata">

**Author:** [@danpak94](https://discourse.slicer.org/u/danpak94)\
**Replies:** 1\
**Last updated:** [March 23, 2020, 4:02pm UTC](https://discourse.slicer.org/t/default-setting-for-different-modules/10758 "2020-03-23T16:02:52Z")

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Hi. Is there a way to change the default settings for different modules? For example, I would like: Models -\> 3D display -\> Representation: Surface with Edges Model Maker -\> Model Maker Parameters -\> Filter Type: Lapla…

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## [How to register 2 CT datasets](https://discourse.slicer.org/t/how-to-register-2-ct-datasets/10788)

<div class="topic-metadata">

**Author:** [@Bhaskar\_Agarwal](https://discourse.slicer.org/u/Bhaskar_Agarwal)\
**Replies:** 1\
**Last updated:** [March 23, 2020, 2:05pm UTC](https://discourse.slicer.org/t/how-to-register-2-ct-datasets/10788 "2020-03-23T14:05:06Z")

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Operating system:windows 10 Slicer version: 4.11.0 Expected behavior: Actual behavior: I want to register pre operative CBCT data over the post operative data and make few linear measurements on the 2 D slices and 3D…

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## [How to properly open a saved Landmark registration](https://discourse.slicer.org/t/how-to-properly-open-a-saved-landmark-registration/5838)

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**Author:** [@mbrammerloh](https://discourse.slicer.org/u/mbrammerloh)\
**Replies:** 8\
**Last updated:** [March 23, 2020, 12:07pm UTC](https://discourse.slicer.org/t/how-to-properly-open-a-saved-landmark-registration/5838 "2020-03-23T12:07:20Z")

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Hello, I am really enjoying 3D slicer for 3D to 2D landmark registration, thanks for the great work. There is one problem I am facing often: I want to continue working on a saved registration, but when I reopen the sce…

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## [Radiomics: Is it possible to import DICOM image and a binary mask as a segmentation to extract features?](https://discourse.slicer.org/t/radiomics-is-it-possible-to-import-dicom-image-and-a-binary-mask-as-a-segmentation-to-extract-features/10652)

<div class="topic-metadata">

**Author:** [@mcastro](https://discourse.slicer.org/u/mcastro)\
**Replies:** 1\
**Last updated:** [March 23, 2020, 10:15am UTC](https://discourse.slicer.org/t/radiomics-is-it-possible-to-import-dicom-image-and-a-binary-mask-as-a-segmentation-to-extract-features/10652 "2020-03-23T10:15:30Z")

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I have a DICOM image along with a binary mask of the segmented region generated by another software. I noticed that Radiomics reads an Input Image Volume and Input Regions. Is there any way to use a volumetric (DICOM) bi…

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## [How to setup Slicer4 as a developer](https://discourse.slicer.org/t/how-to-setup-slicer4-as-a-developer/8935)

<div class="topic-metadata">

**Author:** [@Samuel](https://discourse.slicer.org/u/Samuel)\
**Replies:** 16\
**Last updated:** [March 22, 2020, 11:54am UTC](https://discourse.slicer.org/t/how-to-setup-slicer4-as-a-developer/8935 "2020-03-22T11:54:34Z")

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Hi 3D slicer, I want to setup the slicer4 as a developer but could not find any guide. Can you guide me about this? Thanks

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## [Error when creating sequence of markups lines](https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764)

<div class="topic-metadata">

**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 2\
**Last updated:** [March 22, 2020, 5:15am UTC](https://discourse.slicer.org/t/error-when-creating-sequence-of-markups-lines/10764 "2020-03-22T05:15:54Z")

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Slicer 4.11 Mac OS Trying to create a sequence (using sequences module) of transform hardened marks ups with lines. Slicer crashes Works fine with angles (If I draw an angle on the volume and create multiple angles ,…

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