# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=394

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

**Page:** 395

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## [3D Slicer crashed when clicking on the Segment Editor button](https://discourse.slicer.org/t/3d-slicer-crashed-when-clicking-on-the-segment-editor-button/5349)

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**Author:** [@f10w](https://discourse.slicer.org/u/f10w)\
**Replies:** 6\
**Last updated:** [February 26, 2019, 12:12pm UTC](https://discourse.slicer.org/t/3d-slicer-crashed-when-clicking-on-the-segment-editor-button/5349 "2019-02-26T12:12:22Z")

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Hello, I am working on a segmentation task and I am given an example as a RTSTRUCT.dcm file. After loading it into 3D Slicer, I can visualize the corresponding 3D model and the segmentation (with different colors). Howe…

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## [Convert vessel centerline model to image volume](https://discourse.slicer.org/t/convert-vessel-centerline-model-to-image-volume/5906)

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**Author:** [@albert94](https://discourse.slicer.org/u/albert94)\
**Replies:** 2\
**Last updated:** [February 26, 2019, 9:39am UTC](https://discourse.slicer.org/t/convert-vessel-centerline-model-to-image-volume/5906 "2019-02-26T09:39:51Z")

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Hi all, Is there a way to convert a 3D vessel centerline model into a 3D image volume? I segmented out the vascular centerline using 3D Slicer but I want to convert it into 3D image volume so that I could use use it in …

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## [Exporting OBJ with texture from volume rendering](https://discourse.slicer.org/t/exporting-obj-with-texture-from-volume-rendering/5842)

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**Author:** [@mading](https://discourse.slicer.org/u/mading)\
**Replies:** 14\
**Last updated:** [February 25, 2019, 10:18am UTC](https://discourse.slicer.org/t/exporting-obj-with-texture-from-volume-rendering/5842 "2019-02-25T10:18:38Z")

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Hi all, I found really easy to export models as obj. The surface textures of these files is the same as represented in the 3D viewer: I was wondering if it’s possible to add a different texture: the one you see re…

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## [Segment Editor help please (thresholds)](https://discourse.slicer.org/t/segment-editor-help-please-thresholds/5904)

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**Author:** [@Andrei\_V](https://discourse.slicer.org/u/Andrei_V)\
**Replies:** 2\
**Last updated:** [February 24, 2019, 8:16pm UTC](https://discourse.slicer.org/t/segment-editor-help-please-thresholds/5904 "2019-02-24T20:16:28Z")

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Operating system: Windows 8.1 Slicer version: 4.10.1 Expected behavior: Hello all. I am trying to segment CT slices. On the same slice I need to highlight both muscle and fat, which have different thresholds. Actual b…

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## [very large 3D cube ?](https://discourse.slicer.org/t/very-large-3d-cube/5889)

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**Author:** [@meduser](https://discourse.slicer.org/u/meduser)\
**Replies:** 2\
**Last updated:** [February 23, 2019, 3:07am UTC](https://discourse.slicer.org/t/very-large-3d-cube/5889 "2019-02-23T03:07:12Z")

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Operating system: Mac Slicer version: 4.10.1 Please help: Working on segmentation. The 3D cube that is seen surrounding the 3D volume renderings is shown as a very tall rectangle, with my actual CT volume data and seg…

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## [Saving File Problems for Segmentation Project](https://discourse.slicer.org/t/saving-file-problems-for-segmentation-project/5888)

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**Author:** [@dekaya](https://discourse.slicer.org/u/dekaya)\
**Replies:** 2\
**Last updated:** [February 23, 2019, 2:52am UTC](https://discourse.slicer.org/t/saving-file-problems-for-segmentation-project/5888 "2019-02-23T02:52:19Z")

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Operating system: Mac OS Slicer version: 4.10.1 Actual behavior: I have a problem with how Slicer saves my files. They either become too large as bundle (I.e., doubling in size for each iterative save) or they’re in mu…

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## [Is it possible to apply a lookuptable to a label map using python?](https://discourse.slicer.org/t/is-it-possible-to-apply-a-lookuptable-to-a-label-map-using-python/5873)

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**Author:** [@Kevin.Kn](https://discourse.slicer.org/u/Kevin.Kn)\
**Replies:** 1\
**Last updated:** [February 21, 2019, 10:02pm UTC](https://discourse.slicer.org/t/is-it-possible-to-apply-a-lookuptable-to-a-label-map-using-python/5873 "2019-02-21T22:02:22Z")

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I have two separate files, one being a lookup table , and the other being a .nii labelvolume. I know that you can use slicer.util.loadColorTable() , as well as slicer.util.loadLabelVolume() to load the files into slicer…

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## [Error: user can only specify one output transform type](https://discourse.slicer.org/t/error-user-can-only-specify-one-output-transform-type/5876)

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**Author:** [@coolsocks](https://discourse.slicer.org/u/coolsocks)\
**Replies:** 1\
**Last updated:** [February 21, 2019, 8:56pm UTC](https://discourse.slicer.org/t/error-user-can-only-specify-one-output-transform-type/5876 "2019-02-21T20:56:31Z")

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Hi, I am using Slicer 4.10.1. Whenever I try to run Brainfit General registration for Rigid registration, I always get this error: Error: user can only specify one output transform type However, I only selected Slic…

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## [Points interaction between segment node and model node](https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874)

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**Author:** [@SebastianE93](https://discourse.slicer.org/u/SebastianE93)\
**Replies:** 0\
**Last updated:** [February 21, 2019, 8:11pm UTC](https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874 "2019-02-21T20:11:16Z")

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Operating system: Windows 10 Slicer version: 4.11.0 Expected behavior: Actual behavior: Sorry for my question, i’m a newby I’m trying to determine how many points of the surface of a vtkMRMLSegmentationNode is inter…

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## [Slicer elatix cannot be installed](https://discourse.slicer.org/t/slicer-elatix-cannot-be-installed/5865)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 8\
**Last updated:** [February 21, 2019, 4:16pm UTC](https://discourse.slicer.org/t/slicer-elatix-cannot-be-installed/5865 "2019-02-21T16:16:05Z")

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Hi I downloaded the latest nightly version of slicer. I cannot get the sequence registration to work. I ve installed the sequences plug in and 4D elatix. I am getting an error message saying I need slicer elastix modul…

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## [Slicer elastix on Mac](https://discourse.slicer.org/t/slicer-elastix-on-mac/5434)

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**Author:** [@Mel](https://discourse.slicer.org/u/Mel)\
**Replies:** 3\
**Last updated:** [February 21, 2019, 3:46pm UTC](https://discourse.slicer.org/t/slicer-elastix-on-mac/5434 "2019-02-21T15:46:41Z")

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Hi I cannot get sequence registration module to work on MAc. I am using slicer 4.10 and installed elastix separately and tried specifying the path on general registration. Could you please help. Thanks

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## [SlicerElastix extension not available on Mac](https://discourse.slicer.org/t/slicerelastix-extension-not-available-on-mac/4531)

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**Author:** [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Replies:** 16\
**Last updated:** [February 21, 2019, 3:29pm UTC](https://discourse.slicer.org/t/slicerelastix-extension-not-available-on-mac/4531 "2019-02-21T15:29:16Z")

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Hi all, I wanted to show a Mac user the SlicerElastix extension but it was not there. After a bit of investigation, it turns out that it does not build at least since February. Here’s the latest dashboard and the error …

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## [Interpretation of mesh statistcs](https://discourse.slicer.org/t/interpretation-of-mesh-statistcs/5861)

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**Author:** [@ntinos](https://discourse.slicer.org/u/ntinos)\
**Replies:** 2\
**Last updated:** [February 21, 2019, 12:42am UTC](https://discourse.slicer.org/t/interpretation-of-mesh-statistcs/5861 "2019-02-21T00:42:01Z")

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Hello 3D slicer team! I am currently working on a university project trying to find the differences between the right and left side of skulls. I run the mesh statistics and I need to see if the differences are signific…

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## [Need spine segmentation module](https://discourse.slicer.org/t/need-spine-segmentation-module/2729)

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**Author:** [@FTdiagnose](https://discourse.slicer.org/u/FTdiagnose)\
**Replies:** 2\
**Last updated:** [February 20, 2019, 11:25pm UTC](https://discourse.slicer.org/t/need-spine-segmentation-module/2729 "2019-02-20T23:25:42Z")

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have been trying to find spine segmentation module. Windows user but if only avail for linux would gladly install compatible linux. Have some Ubuntu with GUI experience. I have 32 and 64 bit systems and various slicer ve…

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## [Adding "missing" images to extend volume](https://discourse.slicer.org/t/adding-missing-images-to-extend-volume/5860)

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**Author:** [@rshalev](https://discourse.slicer.org/u/rshalev)\
**Replies:** 2\
**Last updated:** [February 20, 2019, 11:24pm UTC](https://discourse.slicer.org/t/adding-missing-images-to-extend-volume/5860 "2019-02-20T23:24:57Z")

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I have 200 2D images (slices) which represent a volume of a blood vessel (basically, a tube). The pixel size in each of the 2D images is 5 microns and the distance between the slices is 200 microns. How can I add slices …

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## [Dose Volume Histogram Comparison](https://discourse.slicer.org/t/dose-volume-histogram-comparison/3543)

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**Author:** [@aseman](https://discourse.slicer.org/u/aseman)\
**Replies:** 3\
**Last updated:** [February 20, 2019, 11:04pm UTC](https://discourse.slicer.org/t/dose-volume-histogram-comparison/3543 "2019-02-20T23:04:23Z")

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Hi 3D slicer experts: I want to compare two DVH curves in one diagram .I created DVHs with Dose Volume Histogram module , then I used the DVH Comparison module , but it doesn’t show the second DVH for me. how I can s…

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## [SlicerRT external beam planning](https://discourse.slicer.org/t/slicerrt-external-beam-planning/5422)

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**Author:** [@PaoloZaffino](https://discourse.slicer.org/u/PaoloZaffino)\
**Replies:** 6\
**Last updated:** [February 20, 2019, 9:42pm UTC](https://discourse.slicer.org/t/slicerrt-external-beam-planning/5422 "2019-02-20T21:42:16Z")

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Hi all, I have some questions about external beam planning (that is great!). Is it just for protons? I didn’t see the photon option. After setting the isocenter in the center of a structure, is it possible to manually…

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## [DVT import with wrong dimensions](https://discourse.slicer.org/t/dvt-import-with-wrong-dimensions/4284)

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**Author:** [@Christoph\_Chris](https://discourse.slicer.org/u/Christoph_Chris)\
**Replies:** 4\
**Last updated:** [February 20, 2019, 8:04pm UTC](https://discourse.slicer.org/t/dvt-import-with-wrong-dimensions/4284 "2019-02-20T20:04:15Z")

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Operating system: WIndows 10 Slicer version: 4.8.1 Problem: iam trying to import a single dicom file of a patients dvt. The sagittal and coronal dimension are not correct. iam wondering if this is a problem during impo…

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## [Copy specific slices from existing segments to single Binary Map](https://discourse.slicer.org/t/copy-specific-slices-from-existing-segments-to-single-binary-map/5835)

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**Author:** [@triple\_axel](https://discourse.slicer.org/u/triple_axel)\
**Replies:** 3\
**Last updated:** [February 20, 2019, 5:29pm UTC](https://discourse.slicer.org/t/copy-specific-slices-from-existing-segments-to-single-binary-map/5835 "2019-02-20T17:29:29Z")

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What I would specifically like to do is to get the 2D segments from specific slices from two different segmentations onto the same binary label map. (let’s say two slices from the axial direction). Using those two speci…

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## [Segmentation of bones- Automatic](https://discourse.slicer.org/t/segmentation-of-bones-automatic/5849)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 0\
**Last updated:** [February 20, 2019, 4:23pm UTC](https://discourse.slicer.org/t/segmentation-of-bones-automatic/5849 "2019-02-20T16:23:11Z")

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Hi all I am looking to segment bones in a multivolume sequence. This is a set of 3 D volumes with 40-60 frames. Is there a method that I could do one frame and then automatically get it applied to subsequent frames ple…

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## [Noise reduction in cone-beam CT image](https://discourse.slicer.org/t/noise-reduction-in-cone-beam-ct-image/5816)

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**Author:** [@VincentYu](https://discourse.slicer.org/u/VincentYu)\
**Replies:** 2\
**Last updated:** [February 20, 2019, 9:29am UTC](https://discourse.slicer.org/t/noise-reduction-in-cone-beam-ct-image/5816 "2019-02-20T09:29:31Z")

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Hi everyone. We are trying to segment cranial-facial bone in cone-beam CT (CBCT) image, but the low SNR ratio nature of cone-beam CT makes it hard to determine a threshold. We notice that “filtering” may be possible an…

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## [Segments imported as stl files failing to mask properly](https://discourse.slicer.org/t/segments-imported-as-stl-files-failing-to-mask-properly/5780)

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**Author:** [@miniBin](https://discourse.slicer.org/u/miniBin)\
**Replies:** 7\
**Last updated:** [February 19, 2019, 10:37pm UTC](https://discourse.slicer.org/t/segments-imported-as-stl-files-failing-to-mask-properly/5780 "2019-02-19T22:37:29Z")

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Hello Slicer Community. I imported an stl file and converted it to a segment as described in this forum: Difficulty with editing new segments imported as stl files However when I try to mask a transform using this segm…

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## [Make automatic Seedpoints](https://discourse.slicer.org/t/make-automatic-seedpoints/5827)

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**Author:** [@skagsoset](https://discourse.slicer.org/u/skagsoset)\
**Replies:** 1\
**Last updated:** [February 19, 2019, 4:21pm UTC](https://discourse.slicer.org/t/make-automatic-seedpoints/5827 "2019-02-19T16:21:50Z")

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Hey, We are a group trying to make the segmentation of a tumor automatic. The question is how can we pick out a seed point with the use of python code? We have use this line of code to get into the segment editor slice…

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## [Gradient artifact with Mask Volume effect from Editor Extra Effects?](https://discourse.slicer.org/t/gradient-artifact-with-mask-volume-effect-from-editor-extra-effects/4916)

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**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Replies:** 6\
**Last updated:** [February 18, 2019, 2:36pm UTC](https://discourse.slicer.org/t/gradient-artifact-with-mask-volume-effect-from-editor-extra-effects/4916 "2019-02-18T14:36:51Z")

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This is on MacOS, nightly build from October 22. A little old, but not ancient. I’m seeing a strange “gradient” effect when using Mask Volume in Editor Extra Effects. Rather than a sharp cutoff from the inside to the ou…

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## [Incorrect number of points in exported displacement field](https://discourse.slicer.org/t/incorrect-number-of-points-in-exported-displacement-field/5795)

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**Author:** [@miniBin](https://discourse.slicer.org/u/miniBin)\
**Replies:** 3\
**Last updated:** [February 15, 2019, 10:15pm UTC](https://discourse.slicer.org/t/incorrect-number-of-points-in-exported-displacement-field/5795 "2019-02-15T22:15:00Z")

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Action: Performed registration between two models to generate transform Expected: Number of vertices to match the number of rows in the transform txt file Result: The numbers did not match I used segment registration …

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## [Export pixel values for specific segmentation in text file](https://discourse.slicer.org/t/export-pixel-values-for-specific-segmentation-in-text-file/5809)

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**Author:** [@CostasP](https://discourse.slicer.org/u/CostasP)\
**Replies:** 2\
**Last updated:** [February 17, 2019, 9:32pm UTC](https://discourse.slicer.org/t/export-pixel-values-for-specific-segmentation-in-text-file/5809 "2019-02-17T21:32:33Z")

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Operating system: Windows 10 Slicer version: 4.10.0 Hello, I am a new user and currently segmenting a ct dicom file. I am trying to export a .txt file with the pixel values of the segmented volume, in order to define s…

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## [DTI image visualization](https://discourse.slicer.org/t/dti-image-visualization/5802)

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**Author:** [@Vinny](https://discourse.slicer.org/u/Vinny)\
**Replies:** 6\
**Last updated:** [February 17, 2019, 2:08pm UTC](https://discourse.slicer.org/t/dti-image-visualization/5802 "2019-02-17T14:08:48Z")

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Hi, I have constructed a DTI color FA map in Dipy and exported it to 3d Slicer for visualization. This file is a 3 volume nifti file that was imported and viewed using Slicer’s MultiVolume Support module. Each of the …

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## [Mesh statistics in 3D Slicer](https://discourse.slicer.org/t/mesh-statistics-in-3d-slicer/5803)

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**Author:** [@ntinos](https://discourse.slicer.org/u/ntinos)\
**Replies:** 0\
**Last updated:** [February 16, 2019, 9:53pm UTC](https://discourse.slicer.org/t/mesh-statistics-in-3d-slicer/5803 "2019-02-16T21:53:04Z")

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Hello 3D slicer users! I have a question regarding mesh statistics in 3D Slicer. When we select the points that we want to find the difference between the two models (Pick and Paint) we have the ability to change the sc…

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## [Mirroring in 3D slicer](https://discourse.slicer.org/t/mirroring-in-3d-slicer/5775)

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**Author:** [@ntinos](https://discourse.slicer.org/u/ntinos)\
**Replies:** 2\
**Last updated:** [February 16, 2019, 4:59am UTC](https://discourse.slicer.org/t/mirroring-in-3d-slicer/5775 "2019-02-16T04:59:32Z")

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Hello 3D slicer users! I am working on a university project and I need to mirror the right side of a skull on the midsagittal plane, so as to create a new skull from 2 right sides. Can this be done with 3D slicer or sho…

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## [Project week MIT](https://discourse.slicer.org/t/project-week-mit/5789)

<div class="topic-metadata">

**Author:** [@sarvpriya1985](https://discourse.slicer.org/u/sarvpriya1985)\
**Replies:** 7\
**Last updated:** [February 16, 2019, 2:23am UTC](https://discourse.slicer.org/t/project-week-mit/5789 "2019-02-16T02:23:45Z")

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Hi Would like to ask how can we register for project week and what all is required. Is it like a training course or we can work on out specific project. Thanks Sarv

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