# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=156

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

**Page:** 157

---

## [Align two models](https://discourse.slicer.org/t/align-two-models/30129)

<div class="topic-metadata">

**Author:** [@rcapozza](https://discourse.slicer.org/u/rcapozza)\
**Replies:** 2\
**Last updated:** [June 20, 2023, 6:02pm UTC](https://discourse.slicer.org/t/align-two-models/30129 "2023-06-20T18:02:23Z")

</div>

I have a volume composed of several peripheral quantitative computed tomography (pQCT) slices. Since the scans were taken with repositioning, the proximal half of the tibia ended up misaligned with respect to the distal …

---

## [Bone Thickness Mapping don't display the thickness](https://discourse.slicer.org/t/bone-thickness-mapping-dont-display-the-thickness/17175)

<div class="topic-metadata">

**Author:** [@Focus](https://discourse.slicer.org/u/Focus)\
**Replies:** 4\
**Last updated:** [June 20, 2023, 5:05pm UTC](https://discourse.slicer.org/t/bone-thickness-mapping-dont-display-the-thickness/17175 "2023-06-20T17:05:54Z")

</div>

Why it didn’t show the thickness of skull? or any guide me how can I measure the bone thickness like this from the guide in github

---

## [saving images for publication in 3d slicer](https://discourse.slicer.org/t/saving-images-for-publication-in-3d-slicer/30154)

<div class="topic-metadata">

**Author:** [@L\_Hassanzadeh](https://discourse.slicer.org/u/L_Hassanzadeh)\
**Replies:** 0\
**Last updated:** [June 20, 2023, 3:19pm UTC](https://discourse.slicer.org/t/saving-images-for-publication-in-3d-slicer/30154 "2023-06-20T15:19:15Z")

</div>

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

---

## [Which files to extract for 3D printing of 3D ultrasound image?](https://discourse.slicer.org/t/which-files-to-extract-for-3d-printing-of-3d-ultrasound-image/30153)

<div class="topic-metadata">

**Author:** [@Ant04](https://discourse.slicer.org/u/Ant04)\
**Replies:** 0\
**Last updated:** [June 20, 2023, 3:19pm UTC](https://discourse.slicer.org/t/which-files-to-extract-for-3d-printing-of-3d-ultrasound-image/30153 "2023-06-20T15:19:04Z")

</div>

Hello and thank you very much for your content and learned a lot. But I think I don’t have a good idea of where to start. I want to print a baby in 3D and a family member who is a doctor has the ultra sound equipment, hi…

---

## [Add Data menu turns black](https://discourse.slicer.org/t/add-data-menu-turns-black/30149)

<div class="topic-metadata">

**Author:** [@Gholl](https://discourse.slicer.org/u/Gholl)\
**Replies:** 0\
**Last updated:** [June 20, 2023, 12:12pm UTC](https://discourse.slicer.org/t/add-data-menu-turns-black/30149 "2023-06-20T12:12:44Z")

</div>

Hi, I’m experiencing a problem where the Add Data menu turns completely black after a while. It is solved by restarting Slicer but it’s very annoying and the problem keeps reoccurring. OS: Ubuntu 20.04 Slicer3D V. 5.2…

---

## [Applying the centerline extraction to a batch of models](https://discourse.slicer.org/t/applying-the-centerline-extraction-to-a-batch-of-models/30144)

<div class="topic-metadata">

**Author:** [@mmonteiro](https://discourse.slicer.org/u/mmonteiro)\
**Replies:** 0\
**Last updated:** [June 20, 2023, 8:39am UTC](https://discourse.slicer.org/t/applying-the-centerline-extraction-to-a-batch-of-models/30144 "2023-06-20T08:39:34Z")

</div>

Hi, I am trying to perform centerline extraction and quantifiaction using the slicer VMTK extension. Using the feature that auto-detects the end-points of the centerline, I want to perform the computation on a batch of…

---

## [How to load my compiled CTK into the QT designer and make it a drag and drop control？](https://discourse.slicer.org/t/how-to-load-my-compiled-ctk-into-the-qt-designer-and-make-it-a-drag-and-drop-control/29974)

<div class="topic-metadata">

**Author:** [@ma1282029525](https://discourse.slicer.org/u/ma1282029525)\
**Replies:** 2\
**Last updated:** [June 20, 2023, 3:05am UTC](https://discourse.slicer.org/t/how-to-load-my-compiled-ctk-into-the-qt-designer-and-make-it-a-drag-and-drop-control/29974 "2023-06-20T03:05:15Z")

</div>

I have compiled a ctk library myself and added CTKWidgetsPlugins.dll to qt D: QT 5.15.2 msvc2019\_ 64 plugins designer directory, but it prompts me that I cannot load the library and cannot find the specified module

---

## [How to crop a segmented volume?](https://discourse.slicer.org/t/how-to-crop-a-segmented-volume/28742)

<div class="topic-metadata">

**Author:** [@mukund\_shah](https://discourse.slicer.org/u/mukund_shah)\
**Replies:** 1\
**Last updated:** [April 4, 2023, 2:00pm UTC](https://discourse.slicer.org/t/how-to-crop-a-segmented-volume/28742 "2023-04-04T14:00:22Z")

</div>

Like in volume renderer we can crop a volume by ROI ,how do I do so for a segmented volume?

---

## [Models generated from segmentation of "resampled" volumetric data do not seem to inherit the parent data's transform](https://discourse.slicer.org/t/models-generated-from-segmentation-of-resampled-volumetric-data-do-not-seem-to-inherit-the-parent-datas-transform/29872)

<div class="topic-metadata">

**Author:** [@jgrime](https://discourse.slicer.org/u/jgrime)\
**Replies:** 4\
**Last updated:** [June 19, 2023, 3:07pm UTC](https://discourse.slicer.org/t/models-generated-from-segmentation-of-resampled-volumetric-data-do-not-seem-to-inherit-the-parent-datas-transform/29872 "2023-06-19T15:07:15Z")

</div>

Operating system: Windows 10 Enterprise Slicer version: 5.2.2 Expected behavior: Polygonal mesh data generated by segmentation/model generation of resampled volumetric data should have the same transform as the “parent…

---

## [turn a stack of png files into 3D image?](https://discourse.slicer.org/t/turn-a-stack-of-png-files-into-3d-image/30076)

<div class="topic-metadata">

**Author:** [@Shiyang\_Tian](https://discourse.slicer.org/u/Shiyang_Tian)\
**Replies:** 1\
**Last updated:** [June 19, 2023, 1:09pm UTC](https://discourse.slicer.org/t/turn-a-stack-of-png-files-into-3d-image/30076 "2023-06-19T13:09:52Z")

</div>

Hi I am new to Slicer and I have ten png images already registered, I want to turn them into a 3D object that allows me to view it in different angels, is it something that would be achieved by 3D slicer?

---

## [Merging two different segmentations/models](https://discourse.slicer.org/t/merging-two-different-segmentations-models/30047)

<div class="topic-metadata">

**Author:** [@umgpy](https://discourse.slicer.org/u/umgpy)\
**Replies:** 2\
**Last updated:** [June 19, 2023, 1:03pm UTC](https://discourse.slicer.org/t/merging-two-different-segmentations-models/30047 "2023-06-19T13:03:29Z")

</div>

I have surface model along with it’s segmentation to this I want to merge another segmentation which is not in the same segmentation node. Due to this the merge function in segmentation editor model does not work. Is th…

---

## [Hello, I am trying to download the 3D-Slicer but every time it stuck and I am facing this issue for long time. Any other link to download the 3D-Slicer?](https://discourse.slicer.org/t/hello-i-am-trying-to-download-the-3d-slicer-but-every-time-it-stuck-and-i-am-facing-this-issue-for-long-time-any-other-link-to-download-the-3d-slicer/30112)

<div class="topic-metadata">

**Author:** [@SIKANDER\_KHAN](https://discourse.slicer.org/u/SIKANDER_KHAN)\
**Replies:** 1\
**Last updated:** [June 19, 2023, 7:33am UTC](https://discourse.slicer.org/t/hello-i-am-trying-to-download-the-3d-slicer-but-every-time-it-stuck-and-i-am-facing-this-issue-for-long-time-any-other-link-to-download-the-3d-slicer/30112 "2023-06-19T07:33:41Z")

</div>

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

---

## [TotalSegmentator ERROR failed to compute result - returned non-zero exit status 120](https://discourse.slicer.org/t/totalsegmentator-error-failed-to-compute-result-returned-non-zero-exit-status-120/29600)

<div class="topic-metadata">

**Author:** [@cmjones](https://discourse.slicer.org/u/cmjones)\
**Replies:** 20\
**Last updated:** [June 19, 2023, 6:20am UTC](https://discourse.slicer.org/t/totalsegmentator-error-failed-to-compute-result-returned-non-zero-exit-status-120/29600 "2023-06-19T06:20:10Z")

</div>

When I run totalsegmentator on 3D slicer using the CTA Abdomen (panoramix) sample data it comes with the following error. I have tried uninstalling 3D slicer/PyTorch/totalsegmentator numerous times with no luck. Operati…

---

## [New module for measuring cross-section area of segments](https://discourse.slicer.org/t/new-module-for-measuring-cross-section-area-of-segments/11293)

<div class="topic-metadata">

**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 36\
**Last updated:** [June 19, 2023, 12:08am UTC](https://discourse.slicer.org/t/new-module-for-measuring-cross-section-area-of-segments/11293 "2023-06-19T00:08:58Z")

</div>

A new module - “Segment cross-section area” - has been added to Slicer. It can compute cross-sectional area of segmented structures along a chosen axis direction. Results are available both as a table and can be shown in…

---

## [Is there a feature to make an entity that suits concave surfaces?](https://discourse.slicer.org/t/is-there-a-feature-to-make-an-entity-that-suits-concave-surfaces/30104)

<div class="topic-metadata">

**Author:** [@telomere](https://discourse.slicer.org/u/telomere)\
**Replies:** 2\
**Last updated:** [June 18, 2023, 8:47pm UTC](https://discourse.slicer.org/t/is-there-a-feature-to-make-an-entity-that-suits-concave-surfaces/30104 "2023-06-18T20:47:10Z")

</div>

Hello. After I load a keyhole model, I want to make a key that exactly suits the keyhole. Is there any feature for this? Select the inner surfaces of the keyhole and use “some features” and the result is the key. Wha…

---

## [Create 3d landmarks on the model surface using RGB landmarks](https://discourse.slicer.org/t/create-3d-landmarks-on-the-model-surface-using-rgb-landmarks/30050)

<div class="topic-metadata">

**Author:** [@Muhammed\_Fatih\_Talu](https://discourse.slicer.org/u/Muhammed_Fatih_Talu)\
**Replies:** 10\
**Last updated:** [June 18, 2023, 4:55pm UTC](https://discourse.slicer.org/t/create-3d-landmarks-on-the-model-surface-using-rgb-landmarks/30050 "2023-06-18T16:55:56Z")

</div>

I save the front view of the model as RGB and find the landmarks of the face. But I need to create these landmarks on the 3d model. I need a link between the RGB pixel and the model voxel. Thank you.

---

## [Problems with T1 mapping](https://discourse.slicer.org/t/problems-with-t1-mapping/30105)

<div class="topic-metadata">

**Author:** [@yougood](https://discourse.slicer.org/u/yougood)\
**Replies:** 0\
**Last updated:** [June 18, 2023, 2:36pm UTC](https://discourse.slicer.org/t/problems-with-t1-mapping/30105 "2023-06-18T14:36:18Z")

</div>

Hi I would like to ask you about the T1 mapping acquisition, using 3 separate series (3D LAVA) with different flip angles, but the T1 mapping module only recognizes “MultiVolume”. How can I “make” MultiVolume from my se…

---

## [Memory error when working with KB of data when I have GB free](https://discourse.slicer.org/t/memory-error-when-working-with-kb-of-data-when-i-have-gb-free/30101)

<div class="topic-metadata">

**Author:** [@LostStudent](https://discourse.slicer.org/u/LostStudent)\
**Replies:** 1\
**Last updated:** [June 18, 2023, 12:35pm UTC](https://discourse.slicer.org/t/memory-error-when-working-with-kb-of-data-when-i-have-gb-free/30101 "2023-06-18T12:35:29Z")

</div>

I have been trying to use the markups-\> cloze function feature to analyze a JPG that is only ~5 kb of size and I have ~32 GB of free memory on my computer. 3D slicer continually bottle necks my PC taking all 32 GB when I…

---

## [Langchain: Query the complete 3D Slicer documentation, script repository and FAQ (PDF and HTML) with OpenAI LLM](https://discourse.slicer.org/t/langchain-query-the-complete-3d-slicer-documentation-script-repository-and-faq-pdf-and-html-with-openai-llm/28746)

<div class="topic-metadata">

**Author:** [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Replies:** 9\
**Last updated:** [June 18, 2023, 12:12pm UTC](https://discourse.slicer.org/t/langchain-query-the-complete-3d-slicer-documentation-script-repository-and-faq-pdf-and-html-with-openai-llm/28746 "2023-06-18T12:12:34Z")

</div>

This test implementation enables reading the complete 3D Slicer documentation, including the script repository, from a PDF file, and making it available for queries in an OpenAI LLM using Langchain. The functionality is…

---

## [Mapping markups from coordinates to pixel values](https://discourse.slicer.org/t/mapping-markups-from-coordinates-to-pixel-values/30072)

<div class="topic-metadata">

**Author:** [@jawbra](https://discourse.slicer.org/u/jawbra)\
**Replies:** 1\
**Last updated:** [June 17, 2023, 4:56pm UTC](https://discourse.slicer.org/t/mapping-markups-from-coordinates-to-pixel-values/30072 "2023-06-17T16:56:09Z")

</div>

Hello dear 3D slicer community, We have annotated a dataset of CT scans using markups in 3D slicer, we have used boxes, fiducials and planes. I have written a python script that would map the coordinate values from the …

---

## [Loading Scene Error Message ](https://discourse.slicer.org/t/loading-scene-error-message/30084)

<div class="topic-metadata">

**Author:** [@efrosch](https://discourse.slicer.org/u/efrosch)\
**Replies:** 1\
**Last updated:** [June 17, 2023, 2:08pm UTC](https://discourse.slicer.org/t/loading-scene-error-message/30084 "2023-06-17T14:08:04Z")

</div>

Here is the error message I recieved when trying to open the most recent save progress. I can open the original CT scan but cannot load any scene that has segmentation on it.

---

## [Finding bounding box of the head model](https://discourse.slicer.org/t/finding-bounding-box-of-the-head-model/30097)

<div class="topic-metadata">

**Author:** [@Muhammed\_Fatih\_Talu](https://discourse.slicer.org/u/Muhammed_Fatih_Talu)\
**Replies:** 0\
**Last updated:** [June 17, 2023, 12:47pm UTC](https://discourse.slicer.org/t/finding-bounding-box-of-the-head-model/30097 "2023-06-17T12:47:25Z")

</div>

I’m trying to find the values of the bounding box that covers the model. But the code is very very slow. Is there a different way? Widget = slicer.app.layoutManager().threeDWidget(0) modelDispManager = Widget.threeDVie…

---

## [Slicer-5.2.2 not starting on Windows Server 2016 using Microsoft Application Virtualization (appv)](https://discourse.slicer.org/t/slicer-5-2-2-not-starting-on-windows-server-2016-using-microsoft-application-virtualization-appv/29944)

<div class="topic-metadata">

**Author:** [@Bernhard](https://discourse.slicer.org/u/Bernhard)\
**Replies:** 8\
**Last updated:** [June 17, 2023, 12:57pm UTC](https://discourse.slicer.org/t/slicer-5-2-2-not-starting-on-windows-server-2016-using-microsoft-application-virtualization-appv/29944 "2023-06-17T12:57:03Z")

</div>

Operating system: win10, windows server 2016 Slicer version: 5.2.2 Expected behavior: starting Actual behavior: not starting Hi all we are distributing software through Microsoft Application Virtualization (appv). P…

---

## [Having Trouble Extracting Ultrasound DICOM/Vol file from GE Voluson S8](https://discourse.slicer.org/t/having-trouble-extracting-ultrasound-dicom-vol-file-from-ge-voluson-s8/18218)

<div class="topic-metadata">

**Author:** [@d\_roscoe\_j](https://discourse.slicer.org/u/d_roscoe_j)\
**Replies:** 6\
**Last updated:** [June 16, 2023, 9:36pm UTC](https://discourse.slicer.org/t/having-trouble-extracting-ultrasound-dicom-vol-file-from-ge-voluson-s8/18218 "2023-06-16T21:36:08Z")

</div>

I’m attempting to create a 3d model of a 3d ultrasound .dcm file that I’d asked a 3d sonographer to extract, (for 3d printing) but all that is appearing when uploading to slicer is a 2d image of the ultrasound (in .dcm f…

---

## [Save PNG picture of model anterior view](https://discourse.slicer.org/t/save-png-picture-of-model-anterior-view/30080)

<div class="topic-metadata">

**Author:** [@Muhammed\_Fatih\_Talu](https://discourse.slicer.org/u/Muhammed_Fatih_Talu)\
**Replies:** 2\
**Last updated:** [June 16, 2023, 8:40pm UTC](https://discourse.slicer.org/t/save-png-picture-of-model-anterior-view/30080 "2023-06-16T20:40:23Z")

</div>

I have drawn the blue box by hand to understand the problem. I want to save the blue box content as PNG file. I can find the coordinates of the boundary points of the blue box. ModelNode = slicer.mrmlScene.GetFirstN…

---

## [Fix broken volume - face is behind the back of the head](https://discourse.slicer.org/t/fix-broken-volume-face-is-behind-the-back-of-the-head/30069)

<div class="topic-metadata">

**Author:** [@newbie1](https://discourse.slicer.org/u/newbie1)\
**Replies:** 5\
**Last updated:** [June 16, 2023, 7:42pm UTC](https://discourse.slicer.org/t/fix-broken-volume-face-is-behind-the-back-of-the-head/30069 "2023-06-16T19:42:33Z")

</div>

Hello everyone, im new to 3D Slicer and trying to do some segmentations and measurements but i keep having this problem where the volume its unorganized (the head in trying to measure is split in half and the face is beh…

---

## [error import DICOM files](https://discourse.slicer.org/t/error-import-dicom-files/29959)

<div class="topic-metadata">

**Author:** [@Jiang\_Yao](https://discourse.slicer.org/u/Jiang_Yao)\
**Replies:** 1\
**Last updated:** [June 16, 2023, 2:39pm UTC](https://discourse.slicer.org/t/error-import-dicom-files/29959 "2023-06-16T14:39:46Z")

</div>

Hello 3D Slicer Developer: When I import a folder of dicom images I encountered this error. How can I get around it? Thanks!

---

## [Align two volumes](https://discourse.slicer.org/t/align-two-volumes/29972)

<div class="topic-metadata">

**Author:** [@rcapozza](https://discourse.slicer.org/u/rcapozza)\
**Replies:** 1\
**Last updated:** [June 16, 2023, 2:39pm UTC](https://discourse.slicer.org/t/align-two-volumes/29972 "2023-06-16T14:39:02Z")

</div>

I have taken 18 tomographic slices of a human tibia in two stages of 9 slices each, and the two resulting volumes are not aligned. My specific question is, what is the best method to align the two volumes?

---

## [How do I save the dicom images in a .Json file for Matlab use](https://discourse.slicer.org/t/how-do-i-save-the-dicom-images-in-a-json-file-for-matlab-use/29997)

<div class="topic-metadata">

**Author:** [@Reham](https://discourse.slicer.org/u/Reham)\
**Replies:** 1\
**Last updated:** [June 16, 2023, 2:36pm UTC](https://discourse.slicer.org/t/how-do-i-save-the-dicom-images-in-a-json-file-for-matlab-use/29997 "2023-06-16T14:36:32Z")

</div>

Hello, After I segmented the 3D image from a set of dicom images, I would like to save them all in a “.json” file that has all the dicom images saved to call the file in Matlab. Anyone can help in this point will be ap…

---

## [3D analysis with models obtained from 3D scans](https://discourse.slicer.org/t/3d-analysis-with-models-obtained-from-3d-scans/30004)

<div class="topic-metadata">

**Author:** [@IsabelW96](https://discourse.slicer.org/u/IsabelW96)\
**Replies:** 1\
**Last updated:** [June 16, 2023, 2:33pm UTC](https://discourse.slicer.org/t/3d-analysis-with-models-obtained-from-3d-scans/30004 "2023-06-16T14:33:49Z")

</div>

Hello everyone, Currently I am conducting research on the positioning accuracy of surgical guides on 3D printed bone models. I take a 3D scan of the bone models with the attached surgical guide, and I want to analyze th…

[Previous page](https://discourse.slicer.org/c/support/11.md?page=155)

[Next page](https://discourse.slicer.org/c/support/11.md?page=157)