# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=322

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

**Page:** 323

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## [issue while exporting stl model](https://discourse.slicer.org/t/issue-while-exporting-stl-model/13469)

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**Author:** [@sandy](https://discourse.slicer.org/u/sandy)\
**Replies:** 4\
**Last updated:** [September 14, 2020, 4:12am UTC](https://discourse.slicer.org/t/issue-while-exporting-stl-model/13469 "2020-09-14T04:12:54Z")

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Operating system: window 7 Slicer version:4.10.2 Expected behavior: should export proper model Actual behavior: the problem is in exporting stl or obj model from slicer software meanwhile importing it into the cura , …

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## [Selection boxes in save dialog box is invisible in Dark mode](https://discourse.slicer.org/t/selection-boxes-in-save-dialog-box-is-invisible-in-dark-mode/13442)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [September 14, 2020, 1:18am UTC](https://discourse.slicer.org/t/selection-boxes-in-save-dialog-box-is-invisible-in-dark-mode/13442 "2020-09-14T01:18:51Z")

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Is this the contrast on my screen, or others have the same issue? Selection boxes are not visible. People who don’t know that they are there will probably miss them. (also this is from a 4K screen. I think the gray edge…

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## [Got this message on Windows Server](https://discourse.slicer.org/t/got-this-message-on-windows-server/13472)

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**Author:** [@NoobForSlicer](https://discourse.slicer.org/u/NoobForSlicer)\
**Replies:** 2\
**Last updated:** [September 13, 2020, 10:54pm UTC](https://discourse.slicer.org/t/got-this-message-on-windows-server/13472 "2020-09-13T22:54:18Z")

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I got this warrning when installing it on a windows server OS. I had an old computer server from early 2000s and I thought hmm could it run Slicer… THen I tried to install it but got this warrning and then it wouldn…

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## [How to create MIP images from the command line?](https://discourse.slicer.org/t/how-to-create-mip-images-from-the-command-line/13435)

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**Author:** [@shahrokh](https://discourse.slicer.org/u/shahrokh)\
**Replies:** 3\
**Last updated:** [September 13, 2020, 1:44pm UTC](https://discourse.slicer.org/t/how-to-create-mip-images-from-the-command-line/13435 "2020-09-13T13:44:40Z")

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Hello Dear Developers and Users Can the MIP viewer module be run from the command line? In other words, how can I generate axial MIP images from the command line by setting Slice Size MIP in any way possible? Please g…

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## [How is a DICOM file segmented? i.e. Does the segmentation algorithm consider one voxel thickness layer at a time?](https://discourse.slicer.org/t/how-is-a-dicom-file-segmented-i-e-does-the-segmentation-algorithm-consider-one-voxel-thickness-layer-at-a-time/13447)

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**Author:** [@Joshua\_Mathew\_Jacob](https://discourse.slicer.org/u/Joshua_Mathew_Jacob)\
**Replies:** 5\
**Last updated:** [September 11, 2020, 7:58pm UTC](https://discourse.slicer.org/t/how-is-a-dicom-file-segmented-i-e-does-the-segmentation-algorithm-consider-one-voxel-thickness-layer-at-a-time/13447 "2020-09-11T19:58:46Z")

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I know this is a very vague question but I’ve kind of understood how image segmentation works in 2D. When it comes to DICOM files, I know that a slice is basically a 3D image made of voxels, where voxel thickness depends…

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## [Segment registration](https://discourse.slicer.org/t/segment-registration/13455)

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**Author:** [@Pratik](https://discourse.slicer.org/u/Pratik)\
**Replies:** 4\
**Last updated:** [September 12, 2020, 5:55am UTC](https://discourse.slicer.org/t/segment-registration/13455 "2020-09-12T05:55:50Z")

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I am trying to compare the coordinates of a geometry before and after deformation in order to compute displacements in x,y and z direction. I am using segment registration feature from 3D slicer to register the two segme…

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## [Clear IJK to RAS](https://discourse.slicer.org/t/clear-ijk-to-ras/13250)

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**Author:** [@joachim](https://discourse.slicer.org/u/joachim)\
**Replies:** 5\
**Last updated:** [September 11, 2020, 8:51pm UTC](https://discourse.slicer.org/t/clear-ijk-to-ras/13250 "2020-09-11T20:51:00Z")

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My DICOM image serie has a built in transformation, which can be seen in Volume Information: (Or using ImageMagick: magick identify -verbose file.dcm shows a tag dcm:ImageOrientation(Patient) with this orientation). H…

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## [Knee segmentation - Can I do it faster?](https://discourse.slicer.org/t/knee-segmentation-can-i-do-it-faster/13410)

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**Author:** [@whirl](https://discourse.slicer.org/u/whirl)\
**Replies:** 2\
**Last updated:** [September 11, 2020, 7:33pm UTC](https://discourse.slicer.org/t/knee-segmentation-can-i-do-it-faster/13410 "2020-09-11T19:33:22Z")

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Hi there I used 4.10.2 to segment the knee (without patella). I’ve done it after some attempts and fails. All the structures I made using “drawin” and “fill between spaces”. As you can imagine, it took ages to do it. So…

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## [MarkupsLine .fcsv loads as MarkupsFiducials](https://discourse.slicer.org/t/markupsline-fcsv-loads-as-markupsfiducials/11545)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 44\
**Last updated:** [September 11, 2020, 2:59pm UTC](https://discourse.slicer.org/t/markupsline-fcsv-loads-as-markupsfiducials/11545 "2020-09-11T14:59:46Z")

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If I create a Line Markups annotation, save it as “Markups Fidicials .fcsv” (the only format available to save Markups annotations in the “Save as” dialog) and load back in Slicer, it shows up not as MarkupsLine, but as …

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## [3D binary mask from both sagittal frontal axial segments](https://discourse.slicer.org/t/3d-binary-mask-from-both-sagittal-frontal-axial-segments/13414)

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**Author:** [@Ndzimbong\_William\_Br](https://discourse.slicer.org/u/Ndzimbong_William_Br)\
**Replies:** 2\
**Last updated:** [September 11, 2020, 9:42am UTC](https://discourse.slicer.org/t/3d-binary-mask-from-both-sagittal-frontal-axial-segments/13414 "2020-09-11T09:42:47Z")

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Operating system: windows 10 Slicer version: 4.10.2 Expected behavior: obtain one 3D binary mask Actual behavior: three 3D masks, each by segment Imaging Modality: 3D US

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## [US/ CT data fusion](https://discourse.slicer.org/t/us-ct-data-fusion/13430)

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**Author:** [@emipaw](https://discourse.slicer.org/u/emipaw)\
**Replies:** 4\
**Last updated:** [September 11, 2020, 9:03am UTC](https://discourse.slicer.org/t/us-ct-data-fusion/13430 "2020-09-11T09:03:16Z")

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Hi, I have liver tumor data from US 3D (vol) and CT and I want to reg them. I tried with Landmark Segmentation but the scale wasn’t good enough (US image was too small - should I calibrate the image?). Now I am looking …

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## [Superfluous suffix for reloads causes issues with save](https://discourse.slicer.org/t/superfluous-suffix-for-reloads-causes-issues-with-save/13216)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 8\
**Last updated:** [September 10, 2020, 1:05pm UTC](https://discourse.slicer.org/t/superfluous-suffix-for-reloads-causes-issues-with-save/13216 "2020-09-10T13:05:15Z")

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This is a minor issue, but annoys me particularly when the scene is empty (but not reset). Load MRHead.nrrd, rename the node to something else, and the \]note that the second time it is loaded name becomes MRHead\_1, even…

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## [3D Slicer MHD Color Visualization](https://discourse.slicer.org/t/3d-slicer-mhd-color-visualization/13419)

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**Author:** [@Luis\_Carlos\_Carneiro](https://discourse.slicer.org/u/Luis_Carlos_Carneiro)\
**Replies:** 1\
**Last updated:** [September 10, 2020, 12:21pm UTC](https://discourse.slicer.org/t/3d-slicer-mhd-color-visualization/13419 "2020-09-10T12:21:06Z")

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Dear All, I am trying to visualize the MHD file with the following header in 3D Slicer without success: ObjectType = Image NDims = 3 BinaryData = True BinaryDataByteOrderMSB = False CompressedData = False Transfor…

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## [Crosshair snap to voxel center](https://discourse.slicer.org/t/crosshair-snap-to-voxel-center/13412)

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**Author:** [@vanossj](https://discourse.slicer.org/u/vanossj)\
**Replies:** 3\
**Last updated:** [September 10, 2020, 12:31pm UTC](https://discourse.slicer.org/t/crosshair-snap-to-voxel-center/13412 "2020-09-10T12:31:59Z")

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Is there a way I can configure the crosshair to snap to the grid defined by the voxel centers? This would solve a problem I’m having where the segmentation looks incorrect because either I segmented centered, but now …

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## [Cortical vs Trabecular Bone Segmentation](https://discourse.slicer.org/t/cortical-vs-trabecular-bone-segmentation/13406)

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**Author:** [@Shreya\_Chakraborty](https://discourse.slicer.org/u/Shreya_Chakraborty)\
**Replies:** 5\
**Last updated:** [September 10, 2020, 1:46am UTC](https://discourse.slicer.org/t/cortical-vs-trabecular-bone-segmentation/13406 "2020-09-10T01:46:40Z")

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Hi I am relatively new to 3DSlicer and have been finding the software extremely useful! This might seem like a stupid question, but is there a way to differentiate cortical and trabecular bones from CT scans? The easies…

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## [How do I make my segmentation appear in the 3D view](https://discourse.slicer.org/t/how-do-i-make-my-segmentation-appear-in-the-3d-view/13415)

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**Author:** [@sndkf](https://discourse.slicer.org/u/sndkf)\
**Replies:** 0\
**Last updated:** [September 10, 2020, 12:06am UTC](https://discourse.slicer.org/t/how-do-i-make-my-segmentation-appear-in-the-3d-view/13415 "2020-09-10T00:06:22Z")

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Hello, How do I make the 3D view show a model of my segmentation on macOS. When I did the segmentation on my Windows computer it showed up in 3D view automatically, but when I open the files on my mac computer the 3D vi…

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## [Display Patient Name on the Images](https://discourse.slicer.org/t/display-patient-name-on-the-images/13413)

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**Author:** [@aptirumalai](https://discourse.slicer.org/u/aptirumalai)\
**Replies:** 1\
**Last updated:** [September 9, 2020, 11:51pm UTC](https://discourse.slicer.org/t/display-patient-name-on-the-images/13413 "2020-09-09T23:51:10Z")

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When loading a DICOM series, is there a way to display the patient name on the images? The Series number and the Series Description are shown as overlays on my images but not the patient name.

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## [Registration QA extension](https://discourse.slicer.org/t/registration-qa-extension/5931)

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**Author:** [@gcsharp](https://discourse.slicer.org/u/gcsharp)\
**Replies:** 1\
**Last updated:** [September 9, 2020, 2:10pm UTC](https://discourse.slicer.org/t/registration-qa-extension/5931 "2020-09-09T14:10:00Z")

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Has anyone tried to use the Registration QA extension \[1\]? I tried it on windows, and it doesn’t seem to do anything. For example, I ran the tutorial, and tried clicking Jacobian or Landmark distance, but nothing shows…

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## [MRI\_CT image registration](https://discourse.slicer.org/t/mri-ct-image-registration/13399)

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**Author:** [@Iman\_Shokatian](https://discourse.slicer.org/u/Iman_Shokatian)\
**Replies:** 0\
**Last updated:** [September 9, 2020, 1:15pm UTC](https://discourse.slicer.org/t/mri-ct-image-registration/13399 "2020-09-09T13:15:45Z")

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Hi all I’m trying to register CT images with \[512,512,48\] and diffusion MRI with \[128,128,68\] dimensions. I am using general registration (BRAINS) modules with the following parameters: fixed image: CT Moving image: M…

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## [Problem with Segment Editor](https://discourse.slicer.org/t/problem-with-segment-editor/13396)

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**Author:** [@doc-xie](https://discourse.slicer.org/u/doc-xie)\
**Replies:** 1\
**Last updated:** [September 9, 2020, 11:41am UTC](https://discourse.slicer.org/t/problem-with-segment-editor/13396 "2020-09-09T11:41:21Z")

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Version: 4.10.0(stable) System:MacOS In Segment Editor module, the Segment can not be performed with Draw, Level tracing or Threshold tools. The error showed as following: Traceback (most recent call last): File “/Vo…

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## [How to get Get Patient Details](https://discourse.slicer.org/t/how-to-get-get-patient-details/13395)

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**Author:** [@Chintha\_Siva\_Prasad](https://discourse.slicer.org/u/Chintha_Siva_Prasad)\
**Replies:** 1\
**Last updated:** [September 9, 2020, 5:02am UTC](https://discourse.slicer.org/t/how-to-get-get-patient-details/13395 "2020-09-09T05:02:47Z")

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How can I get patient details like name, sex etc? What is the method to access these tags in python through a dicom database?

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## [Stack of CT images of 3D printed ABS plastic to FEA](https://discourse.slicer.org/t/stack-of-ct-images-of-3d-printed-abs-plastic-to-fea/13391)

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**Author:** [@aandonian](https://discourse.slicer.org/u/aandonian)\
**Replies:** 1\
**Last updated:** [September 8, 2020, 6:59pm UTC](https://discourse.slicer.org/t/stack-of-ct-images-of-3d-printed-abs-plastic-to-fea/13391 "2020-09-08T18:59:30Z")

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Dear all, I have 8 tiff files that make up slices of a section of 3D printed ABS plastic. I would like to use the stack of images to create a volume, segment the pores in the plastic, and export for FEA in Abaqus. FEA …

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## [3D Image generation from a volumetric mesh](https://discourse.slicer.org/t/3d-image-generation-from-a-volumetric-mesh/13364)

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**Author:** [@suranga](https://discourse.slicer.org/u/suranga)\
**Replies:** 2\
**Last updated:** [September 8, 2020, 6:27pm UTC](https://discourse.slicer.org/t/3d-image-generation-from-a-volumetric-mesh/13364 "2020-09-08T18:27:23Z")

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I have created a volumetric mesh (FEM) using gmsh and exported it as a .vtk file (i.e. unstructuredGrid). This FE model consists of a box with an ellipsoid where ellipsoid is located inside of the box. (Scalar range is …

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## [More than 256 colors](https://discourse.slicer.org/t/more-than-256-colors/13369)

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**Author:** [@MancaZerovnik](https://discourse.slicer.org/u/MancaZerovnik)\
**Replies:** 5\
**Last updated:** [September 8, 2020, 12:37pm UTC](https://discourse.slicer.org/t/more-than-256-colors/13369 "2020-09-08T12:37:29Z")

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Hi, I have a volume with multiple labeled instances and I would like to have more than 256 colors to show each instance with a different color. I tried to make a custom color table because all the existing ones are limi…

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## [Volume Miscalculation](https://discourse.slicer.org/t/volume-miscalculation/13274)

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**Author:** [@Angel](https://discourse.slicer.org/u/Angel)\
**Replies:** 25\
**Last updated:** [September 8, 2020, 4:37am UTC](https://discourse.slicer.org/t/volume-miscalculation/13274 "2020-09-08T04:37:27Z")

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Hello, I have been using the Segment Statistics Module to try and compute the volumes of segmentations. However, the values do not seem to be correct. For example, the volume of the right ventricle is shown to be greate…

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## [Comparison of CT and USG 3D images](https://discourse.slicer.org/t/comparison-of-ct-and-usg-3d-images/13361)

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**Author:** [@emipaw](https://discourse.slicer.org/u/emipaw)\
**Replies:** 1\
**Last updated:** [September 8, 2020, 3:31am UTC](https://discourse.slicer.org/t/comparison-of-ct-and-usg-3d-images/13361 "2020-09-08T03:31:47Z")

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Hi! I have data from CT and from USG 3D. The patient has a liver tumor. I am trying to compare tumor volume in both modalities. For CT I know that the computed volume is reliable but I am not sure what about USG 3D. Sho…

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## [Exporting segmentation To DicomRT](https://discourse.slicer.org/t/exporting-segmentation-to-dicomrt/13377)

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**Author:** [@loubna](https://discourse.slicer.org/u/loubna)\
**Replies:** 1\
**Last updated:** [September 8, 2020, 1:50am UTC](https://discourse.slicer.org/t/exporting-segmentation-to-dicomrt/13377 "2020-09-08T01:50:36Z")

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Hi; How much information is lost ( or lack of precision) when converting segmentation to a series of contours? I think, there is a biais of conversion, I want to know how much this conversion is faithful to the initial…

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## [General Registration (BRAINS)](https://discourse.slicer.org/t/general-registration-brains/13383)

<div class="topic-metadata">

**Author:** [@zahiraabdala](https://discourse.slicer.org/u/zahiraabdala)\
**Replies:** 1\
**Last updated:** [September 8, 2020, 1:47am UTC](https://discourse.slicer.org/t/general-registration-brains/13383 "2020-09-08T01:47:57Z")

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Hi everyone, I need to know how general registration brain module works. I use it and its works very well but I need more information about the functionality. I was looking for more information but I only found this link…

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## [Unable to open RT file generated by Slicer](https://discourse.slicer.org/t/unable-to-open-rt-file-generated-by-slicer/13380)

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**Author:** [@Gabriel\_T](https://discourse.slicer.org/u/Gabriel_T)\
**Replies:** 1\
**Last updated:** [September 8, 2020, 1:44am UTC](https://discourse.slicer.org/t/unable-to-open-rt-file-generated-by-slicer/13380 "2020-09-08T01:44:46Z")

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I loaded two nrrd volumes, one has the CT volume , the other has a binary segmentation mask. I am able to load and view them without any problem. But when I try to save it by exporting to RTseries, it generates the dico…

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## [create a dynamic sequence of segmented file ](https://discourse.slicer.org/t/create-a-dynamic-sequence-of-segmented-file/13373)

<div class="topic-metadata">

**Author:** [@ponchan0](https://discourse.slicer.org/u/ponchan0)\
**Replies:** 3\
**Last updated:** [September 7, 2020, 8:06pm UTC](https://discourse.slicer.org/t/create-a-dynamic-sequence-of-segmented-file/13373 "2020-09-07T20:06:35Z")

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Good afternoon, Im wondering if there is a tool allowing a rapid segmentation of a dynamic structure (heart ventricles contracting) ? As demonstrated in the youtube video sequence recording, a dynamic mesh is visualize…

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