# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=297

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

**Page:** 298

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## [Obtain Roi list of voxel with position and value](https://discourse.slicer.org/t/obtain-roi-list-of-voxel-with-position-and-value/16041)

<div class="topic-metadata">

**Author:** [@GMA](https://discourse.slicer.org/u/GMA)\
**Replies:** 2\
**Last updated:** [February 17, 2021, 8:01pm UTC](https://discourse.slicer.org/t/obtain-roi-list-of-voxel-with-position-and-value/16041 "2021-02-17T20:01:56Z")

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Hello to all, I’d like to know if it is possible to obtain the list of voxel within a segmentation in osirix and the corrispective value. I’d like to have a list of each value of every voxel in a roi. Is there any imple…

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## [Loading Colour Table alongside 3D Models](https://discourse.slicer.org/t/loading-colour-table-alongside-3d-models/16020)

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**Author:** [@karinak](https://discourse.slicer.org/u/karinak)\
**Replies:** 2\
**Last updated:** [February 17, 2021, 7:34pm UTC](https://discourse.slicer.org/t/loading-colour-table-alongside-3d-models/16020 "2021-02-17T19:34:04Z")

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Hello, I am currently trying to load 3D models of individual segments (liver, left kidney, right kidney etc) into Slicer but I am losing their original colour attributes. I see that there is an option to load a colour t…

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## [download for Mac cannot install](https://discourse.slicer.org/t/download-for-mac-cannot-install/15979)

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**Author:** [@mahboobeh\_sheikhi](https://discourse.slicer.org/u/mahboobeh_sheikhi)\
**Replies:** 1\
**Last updated:** [February 15, 2021, 3:29am UTC](https://discourse.slicer.org/t/download-for-mac-cannot-install/15979 "2021-02-15T03:29:27Z")

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Operating system:mac Slicer version:4.1.1 Expected behavior: Actual behavior:

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## [FPS deteriation after prolonged fiducial registration](https://discourse.slicer.org/t/fps-deteriation-after-prolonged-fiducial-registration/15816)

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**Author:** [@WoutertenBolscher](https://discourse.slicer.org/u/WoutertenBolscher)\
**Replies:** 7\
**Last updated:** [February 17, 2021, 3:12am UTC](https://discourse.slicer.org/t/fps-deteriation-after-prolonged-fiducial-registration/15816 "2021-02-17T03:12:40Z")

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Hi everyone, Currently, I am working on a tracked phantom and tool setup. I load the segmented phantom model and 4 associated registration points, and start receiving transforms via OpenIGTLink interface. Then the recei…

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## [Registration with BSpline method, ITKv4 registration](https://discourse.slicer.org/t/registration-with-bspline-method-itkv4-registration/15999)

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**Author:** [@hao](https://discourse.slicer.org/u/hao)\
**Replies:** 10\
**Last updated:** [February 16, 2021, 8:51pm UTC](https://discourse.slicer.org/t/registration-with-bspline-method-itkv4-registration/15999 "2021-02-16T20:51:21Z")

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Hi, I have a regestration problem with Bspline transform. I want to do the registration beween CT and MRI. I use the same precedure: manuel tranform for align the two series at the first time, Linear Transform for the …

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## [How to use PTR file to Load raw data in 3D slicer](https://discourse.slicer.org/t/how-to-use-ptr-file-to-load-raw-data-in-3d-slicer/15992)

<div class="topic-metadata">

**Author:** [@xiaolin](https://discourse.slicer.org/u/xiaolin)\
**Replies:** 4\
**Last updated:** [February 16, 2021, 1:33pm UTC](https://discourse.slicer.org/t/how-to-use-ptr-file-to-load-raw-data-in-3d-slicer/15992 "2021-02-16T13:33:59Z")

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Hello, Would you please help me to solve this problem? I want to load my CT raw data to slicer which is PTR file. But I tried many times, it didn’t work. Would you please help me to give me some guidance to figure it o…

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## [How to change the radius of lumen/artery using centerline tool](https://discourse.slicer.org/t/how-to-change-the-radius-of-lumen-artery-using-centerline-tool/15958)

<div class="topic-metadata">

**Author:** [@Jezza](https://discourse.slicer.org/u/Jezza)\
**Replies:** 9\
**Last updated:** [February 16, 2021, 1:00am UTC](https://discourse.slicer.org/t/how-to-change-the-radius-of-lumen-artery-using-centerline-tool/15958 "2021-02-16T01:00:35Z")

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Operating system: macOS Catalina 10.15.7 Slicer version: 4.11 20200930 I was able to learn how to change the length of my model using Centerline Extraction however I cannot find any information on how to change the sph…

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## [3D-segmentation + different thresholding across different slices](https://discourse.slicer.org/t/3d-segmentation-different-thresholding-across-different-slices/16000)

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**Author:** [@lekremer](https://discourse.slicer.org/u/lekremer)\
**Replies:** 1\
**Last updated:** [February 15, 2021, 6:40pm UTC](https://discourse.slicer.org/t/3d-segmentation-different-thresholding-across-different-slices/16000 "2021-02-15T18:40:05Z")

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hello, I want to do a 3d volume of a structure (e.g. kidney) of an image volume, but I need to threshold across the kidney at different threshold intensities. unfortunately, the threshold applies to the 3d volume the sa…

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## [Update markups once placed in Landmark registration](https://discourse.slicer.org/t/update-markups-once-placed-in-landmark-registration/15998)

<div class="topic-metadata">

**Author:** [@LaurennLam](https://discourse.slicer.org/u/LaurennLam)\
**Replies:** 4\
**Last updated:** [February 15, 2021, 4:45pm UTC](https://discourse.slicer.org/t/update-markups-once-placed-in-landmark-registration/15998 "2021-02-15T16:45:48Z")

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Hi there, I’m using the Landmark Registration. But I have some issues when I have to place the landmarks. When I click to add a new landmark, and then clicking on the fixed image in order to place it, it automatically …

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## [How can I make a plane from 3 midsagittal fiducials?](https://discourse.slicer.org/t/how-can-i-make-a-plane-from-3-midsagittal-fiducials/15981)

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**Author:** [@ebryson](https://discourse.slicer.org/u/ebryson)\
**Replies:** 5\
**Last updated:** [February 15, 2021, 2:51pm UTC](https://discourse.slicer.org/t/how-can-i-make-a-plane-from-3-midsagittal-fiducials/15981 "2021-02-15T14:51:49Z")

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Hi, I’m trying to place fiducials and open curves on a juvenile skull’s fontanelle (the unfused place where there’s no bone), so it’s landmarking an open/negative space not on the actual model. To do that I want to crea…

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## [Use SyN registration on released Slicer](https://discourse.slicer.org/t/use-syn-registration-on-released-slicer/15626)

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**Author:** [@LaurennLam](https://discourse.slicer.org/u/LaurennLam)\
**Replies:** 2\
**Last updated:** [February 15, 2021, 8:56am UTC](https://discourse.slicer.org/t/use-syn-registration-on-released-slicer/15626 "2021-02-15T08:56:08Z")

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Hi there, is there a way to use Ants SyN registration on Slicer without building it ? Is it included in any known release ? Best

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## [Editor vs Segment Editor](https://discourse.slicer.org/t/editor-vs-segment-editor/15887)

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**Author:** [@vidyakar555](https://discourse.slicer.org/u/vidyakar555)\
**Replies:** 5\
**Last updated:** [February 15, 2021, 3:28am UTC](https://discourse.slicer.org/t/editor-vs-segment-editor/15887 "2021-02-15T03:28:34Z")

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Windows 10 3D Slicer 4.10.1 I’m a novice to the world of 3D Slicer. I would like to segment images and save the label maps in nii. format. How are Editor tool and the Segment Editor tool different from one another? Als…

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## [Define borders between bones](https://discourse.slicer.org/t/define-borders-between-bones/15985)

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**Author:** [@EL\_JAAFARI](https://discourse.slicer.org/u/EL_JAAFARI)\
**Replies:** 2\
**Last updated:** [February 15, 2021, 3:21am UTC](https://discourse.slicer.org/t/define-borders-between-bones/15985 "2021-02-15T03:21:58Z")

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Hello everyone, I need your support After segmenting spine, I’d like now to segment the borders between all the vertebrae. Is there a method you recommend for this? Thanks in advance

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## [Exporting DICOMS after adjusting contrast](https://discourse.slicer.org/t/exporting-dicoms-after-adjusting-contrast/15989)

<div class="topic-metadata">

**Author:** [@kandrade](https://discourse.slicer.org/u/kandrade)\
**Replies:** 1\
**Last updated:** [February 15, 2021, 3:13am UTC](https://discourse.slicer.org/t/exporting-dicoms-after-adjusting-contrast/15989 "2021-02-15T03:13:42Z")

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Hello, I’ve been having some difficulty exporting a DICOM series after I’ve adjusted contrast of my MRI scans. I’m able to export the DICOM series by right clicking on the subject and selecting export to file serve…

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## [Dedine  borders between bones](https://discourse.slicer.org/t/dedine-borders-between-bones/15986)

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**Author:** [@EL\_JAAFARI](https://discourse.slicer.org/u/EL_JAAFARI)\
**Replies:** 0\
**Last updated:** [February 14, 2021, 6:05pm UTC](https://discourse.slicer.org/t/dedine-borders-between-bones/15986 "2021-02-14T18:05:34Z")

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Operating system: MacOS Slicer version: Expected behavior: Actual behavior:

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## [Help tab has a fixed size](https://discourse.slicer.org/t/help-tab-has-a-fixed-size/15972)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 11\
**Last updated:** [February 13, 2021, 8:52pm UTC](https://discourse.slicer.org/t/help-tab-has-a-fixed-size/15972 "2021-02-13T20:52:08Z")

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When expanded, Help tab takes too much space in the module view, pushing all module specific functions too far down (see example for Data module). Now that almost all the documentation is online, and modules provide hotl…

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## [Quantitative analysis of a lung SPECT](https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976)

<div class="topic-metadata">

**Author:** [@fbaerenfaenger](https://discourse.slicer.org/u/fbaerenfaenger)\
**Replies:** 2\
**Last updated:** [February 13, 2021, 6:26pm UTC](https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976 "2021-02-13T18:26:33Z")

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Is it possible to contour the different lobes of the lung in a CT and then transfer the contours to a SPECT for quantitative evaluation?

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## [Export model with changes](https://discourse.slicer.org/t/export-model-with-changes/15971)

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**Author:** [@Giulia1](https://discourse.slicer.org/u/Giulia1)\
**Replies:** 4\
**Last updated:** [February 12, 2021, 6:48pm UTC](https://discourse.slicer.org/t/export-model-with-changes/15971 "2021-02-12T18:48:11Z")

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Hi! I have a problem regarding the export of the final file. When I import a model as a segmentation, if I edit it on segment editor by adding more segmentations or delete wrong parts, if I export it I get a file with o…

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## [Segmenting Images of Cells ](https://discourse.slicer.org/t/segmenting-images-of-cells/15966)

<div class="topic-metadata">

**Author:** [@Hello](https://discourse.slicer.org/u/Hello)\
**Replies:** 3\
**Last updated:** [February 12, 2021, 4:01pm UTC](https://discourse.slicer.org/t/segmenting-images-of-cells/15966 "2021-02-12T16:01:00Z")

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Operating system: Slicer version:4.11.200930 Expected behavior: I am trying to create 3D model of a stack of images of cells and the surrounding vasculature. The cells are dyed green and the vascularture is white. I wa…

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## [Export Statistics to CSV](https://discourse.slicer.org/t/export-statistics-to-csv/15926)

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**Author:** [@Pete](https://discourse.slicer.org/u/Pete)\
**Replies:** 2\
**Last updated:** [February 11, 2021, 9:54pm UTC](https://discourse.slicer.org/t/export-statistics-to-csv/15926 "2021-02-11T21:54:02Z")

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Hi, I am trying to export the calculated statistics/table from the following code to CSV, but obviously the exportToCSVFile isn’t working properly. I don’t know what to replace self with or how to structure this functio…

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## [Is it possible to create an access that contains the modules that we use the most?](https://discourse.slicer.org/t/is-it-possible-to-create-an-access-that-contains-the-modules-that-we-use-the-most/15952)

<div class="topic-metadata">

**Author:** [@Romeo\_Guevara](https://discourse.slicer.org/u/Romeo_Guevara)\
**Replies:** 2\
**Last updated:** [February 11, 2021, 9:19pm UTC](https://discourse.slicer.org/t/is-it-possible-to-create-an-access-that-contains-the-modules-that-we-use-the-most/15952 "2021-02-11T21:19:18Z")

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Good morning, it would be possible to create a box, in which the modules that we regularly use could be stored.

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## [Island Effect is deleting other segments (deleting the copies of my original segment)](https://discourse.slicer.org/t/island-effect-is-deleting-other-segments-deleting-the-copies-of-my-original-segment/15945)

<div class="topic-metadata">

**Author:** [@Jezza](https://discourse.slicer.org/u/Jezza)\
**Replies:** 2\
**Last updated:** [February 11, 2021, 7:54pm UTC](https://discourse.slicer.org/t/island-effect-is-deleting-other-segments-deleting-the-copies-of-my-original-segment/15945 "2021-02-11T19:54:57Z")

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Operating system: macOS Catalina 10.15.7 Slicer version: 4.11 20200930 I managed to duplicate a hollow (vessel wall) version of my model into a solid (blood pool) as described in this post → How would people extract c…

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## [Parts of a module user interface are unreadable in dark mode on macOS](https://discourse.slicer.org/t/parts-of-a-module-user-interface-are-unreadable-in-dark-mode-on-macos/15956)

<div class="topic-metadata">

**Author:** [@canoe\_ccrg](https://discourse.slicer.org/u/canoe_ccrg)\
**Replies:** 2\
**Last updated:** [February 11, 2021, 5:44pm UTC](https://discourse.slicer.org/t/parts-of-a-module-user-interface-are-unreadable-in-dark-mode-on-macos/15956 "2021-02-11T17:44:48Z")

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On my macbook pro, this extension show unnormal

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## [Permission denied when trying to create file from Slicer in most recent Nightly](https://discourse.slicer.org/t/permission-denied-when-trying-to-create-file-from-slicer-in-most-recent-nightly/15940)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 4\
**Last updated:** [February 11, 2021, 7:10pm UTC](https://discourse.slicer.org/t/permission-denied-when-trying-to-create-file-from-slicer-in-most-recent-nightly/15940 "2021-02-11T19:10:33Z")

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I’m a little mystified why I can’t seem to save screenshots or other files on a recent nightly on Windows (4.13.0-2021-02-04). I wonder if this Slicer version has been put into some kind of sandbox, but I’m not sure how …

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## [How to merge several volumes?](https://discourse.slicer.org/t/how-to-merge-several-volumes/15955)

<div class="topic-metadata">

**Author:** [@josephMeng](https://discourse.slicer.org/u/josephMeng)\
**Replies:** 1\
**Last updated:** [February 11, 2021, 5:38pm UTC](https://discourse.slicer.org/t/how-to-merge-several-volumes/15955 "2021-02-11T17:38:49Z")

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Dear community, Currently I am trying to merge several volumes into one large volume. This is what I have so far: -Several volumes loaded into Slicer. The volumes were taken from one patient and show slightly different…

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## [Increasing segmentation resolution](https://discourse.slicer.org/t/increasing-segmentation-resolution/15939)

<div class="topic-metadata">

**Author:** [@Aep93](https://discourse.slicer.org/u/Aep93)\
**Replies:** 3\
**Last updated:** [February 11, 2021, 5:32am UTC](https://discourse.slicer.org/t/increasing-segmentation-resolution/15939 "2021-02-11T05:32:47Z")

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Hello all, How can I increase the resolution of a current segmentation? The master volume has its own quality and we cannot increase it but I want a segmentation with higher quality. I tried to crop the master volume w…

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## [How would people extract center line on a hollow model?](https://discourse.slicer.org/t/how-would-people-extract-center-line-on-a-hollow-model/15927)

<div class="topic-metadata">

**Author:** [@Jezza](https://discourse.slicer.org/u/Jezza)\
**Replies:** 3\
**Last updated:** [February 11, 2021, 12:23am UTC](https://discourse.slicer.org/t/how-would-people-extract-center-line-on-a-hollow-model/15927 "2021-02-11T00:23:02Z")

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Operating system: macOS Catalina 10.15.7 Slicer version: 4.11 20200930 I need to 3D print a hollow model of the aorta and I need to extract the center lines to modify it before 3D printing. Center line extraction only…

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## [Troubleshooting: Imported segmentations appear in a wrong location](https://discourse.slicer.org/t/troubleshooting-imported-segmentations-appear-in-a-wrong-location/15944)

<div class="topic-metadata">

**Author:** [@rumugam](https://discourse.slicer.org/u/rumugam)\
**Replies:** 1\
**Last updated:** [February 11, 2021, 12:01am UTC](https://discourse.slicer.org/t/troubleshooting-imported-segmentations-appear-in-a-wrong-location/15944 "2021-02-11T00:01:20Z")

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Dear 3D Slicer Community, I am currently facing problems with my segmentations. After exporting them as a Labelmap (-label) and reimporting they appear a few slices lower than expected (comparison of original and reimpo…

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## [transfer scene files from 3DSlicer to Unity3D](https://discourse.slicer.org/t/transfer-scene-files-from-3dslicer-to-unity3d/15729)

<div class="topic-metadata">

**Author:** [@Amine\_Ziane](https://discourse.slicer.org/u/Amine_Ziane)\
**Replies:** 21\
**Last updated:** [February 10, 2021, 10:39pm UTC](https://discourse.slicer.org/t/transfer-scene-files-from-3dslicer-to-unity3d/15729 "2021-02-10T22:39:45Z")

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Hi, anybody know how to take the segmentation of the 3DSlicer scene and put those same segmentation on Unity3D with the same characteristics (size, dimension, position of objects), please? I need this for a Project in Zs…

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## [Sandbox extension is not building for linux](https://discourse.slicer.org/t/sandbox-extension-is-not-building-for-linux/15937)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [February 10, 2021, 5:56pm UTC](https://discourse.slicer.org/t/sandbox-extension-is-not-building-for-linux/15937 "2021-02-10T17:56:30Z")

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http://slicer.cdash.org/viewBuildError.php?buildid=2147110 @lassoan

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