# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=390

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

**Page:** 391

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## [Volume render not working](https://discourse.slicer.org/t/volume-render-not-working/6283)

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**Author:** [@Amine](https://discourse.slicer.org/u/Amine)\
**Replies:** 9\
**Last updated:** [March 30, 2019, 2:19am UTC](https://discourse.slicer.org/t/volume-render-not-working/6283 "2019-03-30T02:19:24Z")

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Hello, im running against this issue for the second time now, where volume render would stop working for a certain volume, while still working for the others, Reloading the volume.nrrd file from the save folder into sli…

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## [Slicer hangs any time I open a file dialogue menu](https://discourse.slicer.org/t/slicer-hangs-any-time-i-open-a-file-dialogue-menu/4660)

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**Author:** [@Justin\_Kirby](https://discourse.slicer.org/u/Justin_Kirby)\
**Replies:** 45\
**Last updated:** [March 29, 2019, 8:21pm UTC](https://discourse.slicer.org/t/slicer-hangs-any-time-i-open-a-file-dialogue-menu/4660 "2019-03-29T20:21:24Z")

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On 4.10.0 stable I tried importing data both using “Load Data” and the “Load DICOM Data” buttons. As soon as I get to the point of trying to change directories to locate my data the interface hangs and the dialogue wind…

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## [Slicer app installation "hint" for mac installer](https://discourse.slicer.org/t/slicer-app-installation-hint-for-mac-installer/6329)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 5\
**Last updated:** [March 28, 2019, 8:00pm UTC](https://discourse.slicer.org/t/slicer-app-installation-hint-for-mac-installer/6329 "2019-03-28T20:00:55Z")

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Based on the experience communicating with users, it comes up not for the first time that some users open the installer package, and then open 3D Slicer app from the package, without doing the proper install. Surprisingl…

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## [Failure to open QuadBuffer](https://discourse.slicer.org/t/failure-to-open-quadbuffer/6326)

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**Author:** [@sunhao1296](https://discourse.slicer.org/u/sunhao1296)\
**Replies:** 1\
**Last updated:** [March 28, 2019, 2:57pm UTC](https://discourse.slicer.org/t/failure-to-open-quadbuffer/6326 "2019-03-28T14:57:34Z")

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I’m using the Slicer 4.10.0 and when i want to choose quadbuffer as the stereo mode. But I failed and there is a warning: vtkGenericOpenGLRenderWindow (000001DF559FE7F0): Adjusting stereo mode on a window that does not…

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## [VMTK toolkit is too different to the available tutorial](https://discourse.slicer.org/t/vmtk-toolkit-is-too-different-to-the-available-tutorial/6245)

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**Author:** [@Nafis\_Ebrahimi](https://discourse.slicer.org/u/Nafis_Ebrahimi)\
**Replies:** 8\
**Last updated:** [March 28, 2019, 4:51am UTC](https://discourse.slicer.org/t/vmtk-toolkit-is-too-different-to-the-available-tutorial/6245 "2019-03-28T04:51:22Z")

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Operating system: MacOS Slicer version: 4.10.1 Expected behavior: filtering the vessels. Actual behavior: hello All, I am new in Slicer and working with Slicer 4.10.1 and trying to go ahead with the example prepar…

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## [Agatston score for non-cardiac vessels](https://discourse.slicer.org/t/agatston-score-for-non-cardiac-vessels/6236)

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**Author:** [@Akarken](https://discourse.slicer.org/u/Akarken)\
**Replies:** 2\
**Last updated:** [March 27, 2019, 9:58pm UTC](https://discourse.slicer.org/t/agatston-score-for-non-cardiac-vessels/6236 "2019-03-27T21:58:39Z")

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There ise a topic about agatston score already. But i could not manage to calculate. I tried the method of segmenting and set the lower threshold value to 130. But i could not go any futher than greens areas which may …

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## [Need to click "Show 3D" multiple times](https://discourse.slicer.org/t/need-to-click-show-3d-multiple-times/6302)

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**Author:** [@ishan\_45](https://discourse.slicer.org/u/ishan_45)\
**Replies:** 5\
**Last updated:** [March 27, 2019, 3:58pm UTC](https://discourse.slicer.org/t/need-to-click-show-3d-multiple-times/6302 "2019-03-27T15:58:55Z")

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Hello everyone, I have been experiencing a small issue while using the “Show 3D” button in Segment Editor module. During manual segmentation and repair process for hip bones, I need to switch on and off the 3D view mult…

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## [Saving a playable registration sequence (.mrb)](https://discourse.slicer.org/t/saving-a-playable-registration-sequence-mrb/6311)

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**Author:** [@Fabian\_Castro\_Orjuel](https://discourse.slicer.org/u/Fabian_Castro_Orjuel)\
**Replies:** 0\
**Last updated:** [March 27, 2019, 3:39pm UTC](https://discourse.slicer.org/t/saving-a-playable-registration-sequence-mrb/6311 "2019-03-27T15:39:11Z")

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Operating system: Windows 10 Slicer version: 4.11 Expected behavior: A 3DSlicer playable file -object- 5-10 second sequence Actual behavior: The registration workflow, takes a nrrd file -15 frames for instance- and r…

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## [Scalar volume geometry error](https://discourse.slicer.org/t/scalar-volume-geometry-error/6280)

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**Author:** [@tself96](https://discourse.slicer.org/u/tself96)\
**Replies:** 6\
**Last updated:** [March 27, 2019, 2:28pm UTC](https://discourse.slicer.org/t/scalar-volume-geometry-error/6280 "2019-03-27T14:28:58Z")

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Operating System: MacOS Majave Modality: CT When trying to load DICOM slices I get the warning “reference image in series does not contain geometry information”, I proceed to load anyway and two dimensions are stretche…

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## [Hardware connection issue](https://discourse.slicer.org/t/hardware-connection-issue/6217)

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**Author:** [@lRaulMN7](https://discourse.slicer.org/u/lRaulMN7)\
**Replies:** 11\
**Last updated:** [March 27, 2019, 1:56pm UTC](https://discourse.slicer.org/t/hardware-connection-issue/6217 "2019-03-27T13:56:57Z")

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Hello!. I’m using a video reader to collect the live time images from an ultrasound machine. I managed to collect that video data and stream it to a rtmp URL. Now I guess I have to connect this URL with PlusToolkit, r…

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## [Colorize Model for VR](https://discourse.slicer.org/t/colorize-model-for-vr/6299)

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**Author:** [@gptruncus](https://discourse.slicer.org/u/gptruncus)\
**Replies:** 2\
**Last updated:** [March 27, 2019, 1:02pm UTC](https://discourse.slicer.org/t/colorize-model-for-vr/6299 "2019-03-27T13:02:39Z")

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Hello, is it possible to colorize different parts of an imported STL model(heart) for VR viewing? is this only possible by taking apart or creating two segments of heart and putting them together as different colors? sy…

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## [How to change the default precision of fiducials?](https://discourse.slicer.org/t/how-to-change-the-default-precision-of-fiducials/6157)

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**Author:** [@smrolfe](https://discourse.slicer.org/u/smrolfe)\
**Replies:** 13\
**Last updated:** [March 26, 2019, 6:52pm UTC](https://discourse.slicer.org/t/how-to-change-the-default-precision-of-fiducials/6157 "2019-03-26T18:52:09Z")

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Hello, I’d like to add more significant digits to fiducial points when saving to a FCSV file. I can set the values I want using Python, but the Markups table and the output FCSV file show the default precision. I have t…

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## [Making new sequence](https://discourse.slicer.org/t/making-new-sequence/6262)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 7\
**Last updated:** [March 26, 2019, 3:35am UTC](https://discourse.slicer.org/t/making-new-sequence/6262 "2019-03-26T03:35:41Z")

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Hi, This is actually a continuation of a previous question. I was trying to build a new sequence using segmented .stl files. But when I load them onto slicer as separate STL files, they get overlapped on one another on 3…

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## [Problem in loading the MRI files](https://discourse.slicer.org/t/problem-in-loading-the-mri-files/6274)

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**Author:** [@Valeria\_di\_Battista](https://discourse.slicer.org/u/Valeria_di_Battista)\
**Replies:** 5\
**Last updated:** [March 25, 2019, 3:52pm UTC](https://discourse.slicer.org/t/problem-in-loading-the-mri-files/6274 "2019-03-25T15:52:26Z")

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Good morning, I’m using the Slicer 4.11.0 version of the software to visualize and reconstruct Volume from MRI images of a breast tumor. Till yesterday I was able to load the DICOM file without any problem. Today i’m no…

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## [Update Slicer while keeping extensions and custom modules](https://discourse.slicer.org/t/update-slicer-while-keeping-extensions-and-custom-modules/6269)

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**Author:** [@Prashant\_Pandey](https://discourse.slicer.org/u/Prashant_Pandey)\
**Replies:** 1\
**Last updated:** [March 25, 2019, 3:06am UTC](https://discourse.slicer.org/t/update-slicer-while-keeping-extensions-and-custom-modules/6269 "2019-03-25T03:06:36Z")

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OS: Windows 10 I’m using Slicer 4.8 with a number of published extensions (SlicerElastix, slicerIGT, etc.), and custom python modules and MatlabBridge modules. Every time I update to a more recent Slicer version I have …

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## [Persist checkbox disappears](https://discourse.slicer.org/t/persist-checkbox-disappears/5576)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 6\
**Last updated:** [March 24, 2019, 7:56pm UTC](https://discourse.slicer.org/t/persist-checkbox-disappears/5576 "2019-03-24T19:56:04Z")

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Please see the attached image. After selecting any of the three items in that toolbar list, the persistance checkbox will vanish. I noticed that many months ago and expected a discrete fix. Unfortunately, it’s still an u…

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## [A newbie requesting help with segmentation](https://discourse.slicer.org/t/a-newbie-requesting-help-with-segmentation/6264)

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**Author:** [@Burak\_Furkan\_Kose](https://discourse.slicer.org/u/Burak_Furkan_Kose)\
**Replies:** 2\
**Last updated:** [March 24, 2019, 6:58pm UTC](https://discourse.slicer.org/t/a-newbie-requesting-help-with-segmentation/6264 "2019-03-24T18:58:31Z")

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Hi there people, Like i said in the title i am quite new to the program and i need help with segmentation. The edges of segmentation is look like pixel and i couldn’t find any way to fix it. I will appreciated if you ca…

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## [New markups roles](https://discourse.slicer.org/t/new-markups-roles/6263)

<div class="topic-metadata">

**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 1\
**Last updated:** [March 24, 2019, 6:50pm UTC](https://discourse.slicer.org/t/new-markups-roles/6263 "2019-03-24T18:50:14Z")

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I noticed since a few weeks that new markups are available, like angle, line and curves. It seems to me that they are meant for view annotations only, which is very good. Are they also used in computation in some module…

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## [SITK : can it be ignored while building?](https://discourse.slicer.org/t/sitk-can-it-be-ignored-while-building/6260)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 1\
**Last updated:** [March 24, 2019, 2:08pm UTC](https://discourse.slicer.org/t/sitk-can-it-be-ignored-while-building/6260 "2019-03-24T14:08:31Z")

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I understood from comments in the forum, perhaps wrongly, that SITK can be excluded while building Slicer. How far is this true ? If so, how would it impact Slicer’s usability ? What would be missing? It’s just that it…

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## [The problem with images are not equally spaced](https://discourse.slicer.org/t/the-problem-with-images-are-not-equally-spaced/6251)

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**Author:** [@Burak\_Furkan\_Kose](https://discourse.slicer.org/u/Burak_Furkan_Kose)\
**Replies:** 2\
**Last updated:** [March 23, 2019, 12:06pm UTC](https://discourse.slicer.org/t/the-problem-with-images-are-not-equally-spaced/6251 "2019-03-23T12:06:45Z")

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Hi, I was trying to import patient image then i got a warning and it says “Images are not equally spaced (a difference of -0,4375 vs 1 in spacing was detected). If loaded image appears distorted, enable “Acquisition geo…

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## [surface plot from 2D slices](https://discourse.slicer.org/t/surface-plot-from-2d-slices/6235)

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**Author:** [@nahida](https://discourse.slicer.org/u/nahida)\
**Replies:** 10\
**Last updated:** [March 22, 2019, 2:40pm UTC](https://discourse.slicer.org/t/surface-plot-from-2d-slices/6235 "2019-03-22T14:40:15Z")

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Hi , I have 24 slices of one eye from OCT images. When I load them in slicer and view in volume rendering all slices are placed in horizontally, not make a circle, I want every slices spaced at 30 degree and makes a roun…

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## [Anisotropic Gaussian Filtering for Python Module](https://discourse.slicer.org/t/anisotropic-gaussian-filtering-for-python-module/6221)

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**Author:** [@Prashant\_Pandey](https://discourse.slicer.org/u/Prashant_Pandey)\
**Replies:** 3\
**Last updated:** [March 22, 2019, 3:19am UTC](https://discourse.slicer.org/t/anisotropic-gaussian-filtering-for-python-module/6221 "2019-03-22T03:19:03Z")

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OS: Windows 10 Slicer 4.8.1 Hi, I’m developing a python module consisting of some simple image processing. I want to implement an anisotropic 3D Gaussian filter to smooth an ultrasound sweep, but the only (already impl…

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## [Colormap and mesh statistics](https://discourse.slicer.org/t/colormap-and-mesh-statistics/6244)

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**Author:** [@ntinos](https://discourse.slicer.org/u/ntinos)\
**Replies:** 0\
**Last updated:** [March 22, 2019, 1:53am UTC](https://discourse.slicer.org/t/colormap-and-mesh-statistics/6244 "2019-03-22T01:53:59Z")

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I am working on a project trying to find the differences between the right and left side of skulls. I want to see the differences in colormap, so I am using model to model distance. My problem is that on specific areas (…

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## [Failure to convert DICOM files to Nrrd for Diffusion MRI Analysis](https://discourse.slicer.org/t/failure-to-convert-dicom-files-to-nrrd-for-diffusion-mri-analysis/6072)

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**Author:** [@Bebo](https://discourse.slicer.org/u/Bebo)\
**Replies:** 8\
**Last updated:** [March 21, 2019, 7:48am UTC](https://discourse.slicer.org/t/failure-to-convert-dicom-files-to-nrrd-for-diffusion-mri-analysis/6072 "2019-03-21T07:48:31Z")

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Hello every one, I’m a new 3D slicer user (4.10.1 version), I intend to convert DCM files to Nrrd for the purpose of diffusion MRI analysis (the public data come from the Visual Human Project). However I have this err…

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## [Creating a sicer module: Overlap RGB arrays](https://discourse.slicer.org/t/creating-a-sicer-module-overlap-rgb-arrays/6182)

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**Author:** [@laura.gelcano](https://discourse.slicer.org/u/laura.gelcano)\
**Replies:** 3\
**Last updated:** [March 19, 2019, 9:09pm UTC](https://discourse.slicer.org/t/creating-a-sicer-module-overlap-rgb-arrays/6182 "2019-03-19T21:09:38Z")

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Operating system:Windows Slicer version: 4.8.1 Hi all, I am creating a module using python. First, I have an image as inputVolume, which I have converted into an array to know some information such as dimensions: no…

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## [Multiple issues with extension builds](https://discourse.slicer.org/t/multiple-issues-with-extension-builds/6160)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 3\
**Last updated:** [March 19, 2019, 9:07pm UTC](https://discourse.slicer.org/t/multiple-issues-with-extension-builds/6160 "2019-03-19T21:07:24Z")

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There are several issues that are new (at least to me): at least some extensions are not listed 3 times (e.g. SlicerElastix is listed only once), which to me means they were not built on all platforms maybe I am mistak…

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## [otsu registration](https://discourse.slicer.org/t/otsu-registration/6140)

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**Author:** [@Melodicpinpon](https://discourse.slicer.org/u/Melodicpinpon)\
**Replies:** 1\
**Last updated:** [March 19, 2019, 1:42pm UTC](https://discourse.slicer.org/t/otsu-registration/6140 "2019-03-19T13:42:12Z")

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Goodmorning, Following the tutorials on segùentation, I watched the second video (01) o, the otsu masking method and do not find it within the available modules(I use slicer 4.10.1). Is it an addon?

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## [Unable to create a new sequence](https://discourse.slicer.org/t/unable-to-create-a-new-sequence/6129)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 6\
**Last updated:** [March 19, 2019, 12:51pm UTC](https://discourse.slicer.org/t/unable-to-create-a-new-sequence/6129 "2019-03-19T12:51:09Z")

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Hi ,Sorry for posting this again. I am trying to create new sequence out of several multivolume sequences. I have about 3-5 frames in each multivolume sequence that I want to play back together. I ve selected the firs…

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## [Only sagittal view of MRI image appears](https://discourse.slicer.org/t/only-sagittal-view-of-mri-image-appears/6204)

<div class="topic-metadata">

**Author:** [@Ali\_Rifai](https://discourse.slicer.org/u/Ali_Rifai)\
**Replies:** 1\
**Last updated:** [March 19, 2019, 12:18pm UTC](https://discourse.slicer.org/t/only-sagittal-view-of-mri-image-appears/6204 "2019-03-19T12:18:56Z")

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Operating system: Mac OS Sierra Slicer version: 4.8 Expected behavior: There should be A saggital, coronal, and transverse views of the MRI DICOM data that I am inserting. Actual behavior: Only the saggital view is pr…

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## [Import DicomRT fault (caps open area)](https://discourse.slicer.org/t/import-dicomrt-fault-caps-open-area/6147)

<div class="topic-metadata">

**Author:** [@rtarver](https://discourse.slicer.org/u/rtarver)\
**Replies:** 15\
**Last updated:** [March 19, 2019, 11:43am UTC](https://discourse.slicer.org/t/import-dicomrt-fault-caps-open-area/6147 "2019-03-19T11:43:06Z")

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Operating system: Windows Slicer version: 4.7 Expected behavior: DicomRT fidelity Actual behavior: Incorrect import/display? I’m working on some 3D printing projects and can successfully move data from my plannin…

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