# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=373

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

**Page:** 374

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## [Unable to edit volume information on ultrasound image in "Volumes" module](https://discourse.slicer.org/t/unable-to-edit-volume-information-on-ultrasound-image-in-volumes-module/8190)

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**Author:** [@David\_Asgar-Deen](https://discourse.slicer.org/u/David_Asgar-Deen)\
**Replies:** 6\
**Last updated:** [August 27, 2019, 7:38pm UTC](https://discourse.slicer.org/t/unable-to-edit-volume-information-on-ultrasound-image-in-volumes-module/8190 "2019-08-27T19:38:54Z")

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Hello, I am currently using 3D Slicer for a volume reconstruction of a series of ultrasound (US) image slices. In my slice controller (containing my live US image), I am unable to change the pixel spacing Volumes module…

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## [Landmark loading](https://discourse.slicer.org/t/landmark-loading/8196)

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**Author:** [@kab](https://discourse.slicer.org/u/kab)\
**Replies:** 1\
**Last updated:** [August 27, 2019, 5:31pm UTC](https://discourse.slicer.org/t/landmark-loading/8196 "2019-08-27T17:31:46Z")

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I have a set of 3D landmarks that are in the same image space as my image volume. How can I load/view both? I found a documentation for creating landmarks from inside slicer, but not a mechanism for loading an externall…

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## [Method to remove surrounding body parts](https://discourse.slicer.org/t/method-to-remove-surrounding-body-parts/8194)

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**Author:** [@prorai](https://discourse.slicer.org/u/prorai)\
**Replies:** 1\
**Last updated:** [August 27, 2019, 1:29pm UTC](https://discourse.slicer.org/t/method-to-remove-surrounding-body-parts/8194 "2019-08-27T13:29:50Z")

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How can i set a ROI which only selects the particular organ or body part. for example in abdomen there are organs and other body part , how can i choose only one while doing segmentation using threshold.

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## [Extracting diffusion tensor from DTI images ](https://discourse.slicer.org/t/extracting-diffusion-tensor-from-dti-images/8112)

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**Author:** [@mshah](https://discourse.slicer.org/u/mshah)\
**Replies:** 4\
**Last updated:** [August 26, 2019, 6:55pm UTC](https://discourse.slicer.org/t/extracting-diffusion-tensor-from-dti-images/8112 "2019-08-26T18:55:05Z")

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Hi everyone, I’m having a lot of trouble with the software so far. I am trying to a) visualize the tensor field of dti images and b) extract the 3x3 tensor matrix from each voxel of the images (or directly the eigenvalu…

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## [DICOM Export Rounding to Integer Values](https://discourse.slicer.org/t/dicom-export-rounding-to-integer-values/8038)

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**Author:** [@madeline](https://discourse.slicer.org/u/madeline)\
**Replies:** 9\
**Last updated:** [August 26, 2019, 3:44pm UTC](https://discourse.slicer.org/t/dicom-export-rounding-to-integer-values/8038 "2019-08-26T15:44:09Z")

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Hi all, I am assuming it is a setting I am not able to locate on Slicer, so I’m hopeful this will be an easy question to answer! The problem I am having is that all my DICOM exports seem to convert the values in my PK m…

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## [Obtain outside contour](https://discourse.slicer.org/t/obtain-outside-contour/8143)

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**Author:** [@mikecsu](https://discourse.slicer.org/u/mikecsu)\
**Replies:** 3\
**Last updated:** [August 26, 2019, 3:18am UTC](https://discourse.slicer.org/t/obtain-outside-contour/8143 "2019-08-26T03:18:41Z")

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Operating system: win10 Slicer version: slicer 4.10.0 /4.10.1 Expected behavior: Actual behavior: Hi,there . I would like know if i can segment the skin of a head CT images with the help of “Segmenteditor module”, i…

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## [Probe volume values](https://discourse.slicer.org/t/probe-volume-values/8168)

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**Author:** [@MFS-YES](https://discourse.slicer.org/u/MFS-YES)\
**Replies:** 1\
**Last updated:** [August 25, 2019, 1:15pm UTC](https://discourse.slicer.org/t/probe-volume-values/8168 "2019-08-25T13:15:24Z")

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Hello! can someone explain the meaning of different values (L, P, S, Sp) on the probe model? thanks!

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## [Potential memory leak](https://discourse.slicer.org/t/potential-memory-leak/7848)

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**Author:** [@GiulioBen](https://discourse.slicer.org/u/GiulioBen)\
**Replies:** 12\
**Last updated:** [August 24, 2019, 6:12pm UTC](https://discourse.slicer.org/t/potential-memory-leak/7848 "2019-08-24T18:12:31Z")

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Dear community, thank you all for this nice piece of software!! I’m using it with dicom images. However I noticed a sort of bug: After opening a couple of images (multislice MR), even though I close the scene, I find …

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## [Could not load: pet/ct as a Scalar Volume](https://discourse.slicer.org/t/could-not-load-pet-ct-as-a-scalar-volume/8161)

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**Author:** [@hu\_shuang](https://discourse.slicer.org/u/hu_shuang)\
**Replies:** 0\
**Last updated:** [August 24, 2019, 2:37pm UTC](https://discourse.slicer.org/t/could-not-load-pet-ct-as-a-scalar-volume/8161 "2019-08-24T14:37:25Z")

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Operating system: Mac Os Slicer version:4.10.2 Expected behavior: load pet/ct data Actual behavior: return as “Could not load: 2: Body-Low Dose CT as a Scalar Volume” The pet/ct data is from Philips Gemini

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## [Could not load: DICOM](https://discourse.slicer.org/t/could-not-load-dicom/5580)

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**Author:** [@alide](https://discourse.slicer.org/u/alide)\
**Replies:** 3\
**Last updated:** [January 31, 2019, 6:37am UTC](https://discourse.slicer.org/t/could-not-load-dicom/5580 "2019-01-31T06:37:05Z")

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Hi! I get the following error when trying to load DICOMs from SPECT and from CT: “3d slicer could not load as a scalar volume”. I have checked the DICOM tag, but can not see that anything is missing. The tag is copied …

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## [Merge colored images and show them as 1 volume](https://discourse.slicer.org/t/merge-colored-images-and-show-them-as-1-volume/6472)

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**Author:** [@katharina\_hecker](https://discourse.slicer.org/u/katharina_hecker)\
**Replies:** 7\
**Last updated:** [August 23, 2019, 7:34pm UTC](https://discourse.slicer.org/t/merge-colored-images-and-show-them-as-1-volume/6472 "2019-08-23T19:34:46Z")

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Hello everyone, is there a way to merge multiple colored png images into one volume and visualize this than in the 3D space? I really need this feature since in these images, the colors are really important and I can´t…

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## [Slicer PACS integration](https://discourse.slicer.org/t/slicer-pacs-integration/4089)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 6\
**Last updated:** [August 23, 2019, 6:21pm UTC](https://discourse.slicer.org/t/slicer-pacs-integration/4089 "2019-08-23T18:21:06Z")

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We are looking into how feasible it is to pull patients from the clinical PACS system into Slicer for research purposes. Do we use DICOM browser for this, is it as simple as putting in the IP address of the server into t…

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## [Question about the Name of the column in the Table](https://discourse.slicer.org/t/question-about-the-name-of-the-column-in-the-table/8130)

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**Author:** [@otanit](https://discourse.slicer.org/u/otanit)\
**Replies:** 2\
**Last updated:** [August 23, 2019, 6:17am UTC](https://discourse.slicer.org/t/question-about-the-name-of-the-column-in-the-table/8130 "2019-08-23T06:17:59Z")

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Operating system: Windows 10 Slicer version: Slicer 4.10.1 Expected behavior: Actual behavior: I draw ROIs manually using Segment Editor module, and then calculate the ROI volumes using Segment Statistics. The att…

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## [Building failure on Ubuntu](https://discourse.slicer.org/t/building-failure-on-ubuntu/3215)

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**Author:** [@Edern\_Haumont](https://discourse.slicer.org/u/Edern_Haumont)\
**Replies:** 10\
**Last updated:** [August 22, 2019, 8:43pm UTC](https://discourse.slicer.org/t/building-failure-on-ubuntu/3215 "2019-08-22T20:43:17Z")

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Hi everyone, I am currently trying ti build Slicer on Ubuntu 18. The superbuild fails on compiling libarchive : In function ‘pack\_native’: /home/edern/Projects/Slicer-build/LibArchive/libarchive/archive\_pack\_dev.c:111…

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## [Inverting Elastix transform](https://discourse.slicer.org/t/inverting-elastix-transform/8123)

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**Author:** [@labixin](https://discourse.slicer.org/u/labixin)\
**Replies:** 3\
**Last updated:** [August 22, 2019, 7:05pm UTC](https://discourse.slicer.org/t/inverting-elastix-transform/8123 "2019-08-22T19:05:38Z")

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Hi all, I have some questions about the inverse of transformation. Now I have contours in fixed volume and would like to get transformed one in moving volume. I first created linear transformation (moving2fixed, rigid+…

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## [Stream IGTLink Data from one computer to another when on same network](https://discourse.slicer.org/t/stream-igtlink-data-from-one-computer-to-another-when-on-same-network/5263)

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**Author:** [@aab](https://discourse.slicer.org/u/aab)\
**Replies:** 3\
**Last updated:** [August 22, 2019, 1:42pm UTC](https://discourse.slicer.org/t/stream-igtlink-data-from-one-computer-to-another-when-on-same-network/5263 "2019-08-22T13:42:25Z")

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Operating system: Windows 64 bit Slicer version: 4.4.0 Hi all, I’m using IGTLink with an NDI Tracking system (Polaris Vicra - communicates serrially using USB) and I want to be able to stream the locational data I get…

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## [Compare models trouble shooting](https://discourse.slicer.org/t/compare-models-trouble-shooting/8063)

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**Author:** [@Andrew\_Kanawati](https://discourse.slicer.org/u/Andrew_Kanawati)\
**Replies:** 3\
**Last updated:** [August 22, 2019, 10:09am UTC](https://discourse.slicer.org/t/compare-models-trouble-shooting/8063 "2019-08-22T10:09:15Z")

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I am having trouble comparing and aligning two models. I am registering the fixed segment as a CT scan. Then for the moving segment, created a new volume from a STL (converted to a segment). However the 2 models are n…

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## [Combination of 2 series with interslice gaps, acquired in an interleaved manner](https://discourse.slicer.org/t/combination-of-2-series-with-interslice-gaps-acquired-in-an-interleaved-manner/8117)

<div class="topic-metadata">

**Author:** [@Lee\_Ho\_Jun](https://discourse.slicer.org/u/Lee_Ho_Jun)\
**Replies:** 3\
**Last updated:** [August 22, 2019, 2:44am UTC](https://discourse.slicer.org/t/combination-of-2-series-with-interslice-gaps-acquired-in-an-interleaved-manner/8117 "2019-08-22T02:44:33Z")

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Operating system: Windows 10 Slicer version: 4.10.2 Expected behavior: Actual behavior: Hello 3D slicer community. I have 2 2D MRI series, acquired in an interleaved manner. Namely, 1 series is acquired in a 1.2mm …

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## [When saving a table to a file that is opened, no error is shown](https://discourse.slicer.org/t/when-saving-a-table-to-a-file-that-is-opened-no-error-is-shown/8087)

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**Author:** [@JoostJM](https://discourse.slicer.org/u/JoostJM)\
**Replies:** 1\
**Last updated:** [August 22, 2019, 2:28am UTC](https://discourse.slicer.org/t/when-saving-a-table-to-a-file-that-is-opened-no-error-is-shown/8087 "2019-08-22T02:28:49Z")

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When trying to save a tablenode to a file that is open (using slicer.util.saveNode), the debug log shows: \[ERROR\]\[VTK\] 19.08.2019 12:16:13 \[vtkDelimitedTextWriter (000000001D364F00)\] (D:\\D\\P\\Slicer-0-build\\VTK\\IO\\Core\\v…

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## [DICOM not opening properly in coronal view](https://discourse.slicer.org/t/dicom-not-opening-properly-in-coronal-view/7964)

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**Author:** [@Ricardo](https://discourse.slicer.org/u/Ricardo)\
**Replies:** 7\
**Last updated:** [August 21, 2019, 4:44pm UTC](https://discourse.slicer.org/t/dicom-not-opening-properly-in-coronal-view/7964 "2019-08-21T16:44:23Z")

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Hi everybody. While opening a DICOM folder, I can’t make Coronal view to be shown properly. Let me explain you: In the previous picture you can see the series I chose to open. When I try to load them, I get the foll…

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## [Can I modify the nrrd file saved with the 3D Slicer?](https://discourse.slicer.org/t/can-i-modify-the-nrrd-file-saved-with-the-3d-slicer/8102)

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**Author:** [@kscript](https://discourse.slicer.org/u/kscript)\
**Replies:** 1\
**Last updated:** [August 21, 2019, 4:27pm UTC](https://discourse.slicer.org/t/can-i-modify-the-nrrd-file-saved-with-the-3d-slicer/8102 "2019-08-21T16:27:28Z")

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Now I’m working on annotating with the 3D Slicer. During Annotation, I saved the Volume and looked inside to see that it was saved as index, not color. My goal is to change this index. For example, if you annotate usi…

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## [Rotation matrix in transforms](https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 0\
**Last updated:** [August 21, 2019, 2:45pm UTC](https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122 "2019-08-21T14:45:36Z")

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Hi All Sorry about all this amateur questions and new post. But could someone explain me how to get the displacement of one segment to another in terms of rotations please. I did segment registration and got a the linea…

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## [Scaling Model & Calculating transform](https://discourse.slicer.org/t/scaling-model-calculating-transform/7398)

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**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 7\
**Last updated:** [August 21, 2019, 3:09am UTC](https://discourse.slicer.org/t/scaling-model-calculating-transform/7398 "2019-08-21T03:09:42Z")

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Hi, I was wondering how you would go about changing the scale of an stl model in 3D slicer. Say you have two models from different species, and one is inherently smaller, but you don’t want the volume to impact analysis,…

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## [Issues With Scissor Tool in Segment Editor](https://discourse.slicer.org/t/issues-with-scissor-tool-in-segment-editor/8033)

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**Author:** [@jake111](https://discourse.slicer.org/u/jake111)\
**Replies:** 3\
**Last updated:** [August 20, 2019, 11:14pm UTC](https://discourse.slicer.org/t/issues-with-scissor-tool-in-segment-editor/8033 "2019-08-20T23:14:12Z")

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I’m trying to use the scissor tool to isolate a liver from a full abdomin CT scan. I’ve loaded the image \> Segment Editor \> Add \> Scissor tool but when I drag to select the area with erase inside/outside/etc. nothing ha…

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## [3d Slicer segmentation decrease by 1mm](https://discourse.slicer.org/t/3d-slicer-segmentation-decrease-by-1mm/8108)

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**Author:** [@tenzin\_kunkyab](https://discourse.slicer.org/u/tenzin_kunkyab)\
**Replies:** 2\
**Last updated:** [August 20, 2019, 8:42pm UTC](https://discourse.slicer.org/t/3d-slicer-segmentation-decrease-by-1mm/8108 "2019-08-20T20:42:31Z")

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Hi all, I would like to ask if there is a way I can reduce my current segmentation by 1 mm from all the sides? ( it doesn’t have to be exactly 1 mm could be 2 or 3) however something that I can reduce from all the sides…

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## [How to import Slicer in python-cli](https://discourse.slicer.org/t/how-to-import-slicer-in-python-cli/8083)

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**Author:** [@joechenrh](https://discourse.slicer.org/u/joechenrh)\
**Replies:** 2\
**Last updated:** [August 20, 2019, 3:06pm UTC](https://discourse.slicer.org/t/how-to-import-slicer-in-python-cli/8083 "2019-08-20T15:06:25Z")

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Hi, I’m trying to use python-cli to save node and upload to remote server. But I got error when using saveNode. How can I use these functions in python-cli? Thanks. Traceback (most recent call last): File “C:/Users/c…

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## [VR connection with Acer Windows Mixed Reality](https://discourse.slicer.org/t/vr-connection-with-acer-windows-mixed-reality/8100)

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**Author:** [@Bruno\_Aragao](https://discourse.slicer.org/u/Bruno_Aragao)\
**Replies:** 1\
**Last updated:** [August 20, 2019, 2:57pm UTC](https://discourse.slicer.org/t/vr-connection-with-acer-windows-mixed-reality/8100 "2019-08-20T14:57:24Z")

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Hello. I have bought a Acer WMR headset and I followed the instructions to use it with Slicer extension. It was working very fine in the last days. But today my headset does not leave a " sleep mode". When I try to use …

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## [Muscle segmentation - Can you duplicate a segment?](https://discourse.slicer.org/t/muscle-segmentation-can-you-duplicate-a-segment/8090)

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**Author:** [@tsjamo](https://discourse.slicer.org/u/tsjamo)\
**Replies:** 1\
**Last updated:** [August 19, 2019, 3:24pm UTC](https://discourse.slicer.org/t/muscle-segmentation-can-you-duplicate-a-segment/8090 "2019-08-19T15:24:23Z")

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Hello, I have created a segment and wish to duplicate so I can edit one copy, whilst keeping the original copy intact. Please can someone tell me if this is possible. More detail - I have segmented whole thigh muscle C…

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## [align two segments to each other ](https://discourse.slicer.org/t/align-two-segments-to-each-other/2570)

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**Author:** [@katharina\_hecker](https://discourse.slicer.org/u/katharina_hecker)\
**Replies:** 14\
**Last updated:** [August 19, 2019, 2:04pm UTC](https://discourse.slicer.org/t/align-two-segments-to-each-other/2570 "2019-08-19T14:04:19Z")

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Operating system: Windows Slicer version:4.9 Expected behavior: align the size of two segments to each other Actual behavior: when i wanted to try to set the same size parameters for two different volumes the image di…

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## [Why neighboured slices got overlaid in the Red-Slice-view after I get into the module of Screen-Capture?](https://discourse.slicer.org/t/why-neighboured-slices-got-overlaid-in-the-red-slice-view-after-i-get-into-the-module-of-screen-capture/8066)

<div class="topic-metadata">

**Author:** [@aiden.zhu](https://discourse.slicer.org/u/aiden.zhu)\
**Replies:** 2\
**Last updated:** [August 19, 2019, 12:41pm UTC](https://discourse.slicer.org/t/why-neighboured-slices-got-overlaid-in-the-red-slice-view-after-i-get-into-the-module-of-screen-capture/8066 "2019-08-19T12:41:45Z")

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Hi all and @lassoan, I happened to get a funny case as follows: A. I load a 20-slice 3D image data. The first and the second slice look just like this: and So everything looks so cool there so far. and then B. I…

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