# Latest

**URL:** https://discourse.slicer.org/latest.md?page=49

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

**Page:** 50

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## [Volumes display Image Spacing and Image Origin wrong?](https://discourse.slicer.org/t/volumes-display-image-spacing-and-image-origin-wrong/43587)

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**Author:** [@StephenLeePeng](https://discourse.slicer.org/u/StephenLeePeng)\
**Replies:** 5\
**Last updated:** [July 7, 2025, 1:27am UTC](https://discourse.slicer.org/t/volumes-display-image-spacing-and-image-origin-wrong/43587 "2025-07-07T01:27:30Z")

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When I load a CT Lung series (axial) into Slicer 4.13, and switch to the “Volumes” Module, and the “Image Spacing” and “Image Origin” display: \[1mm, 1mm, 1mm\] and \[0, 0, 0\] as picture below. But when I dcmdump the ra…

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## [Difference between the dimensions of the CT and RT dose](https://discourse.slicer.org/t/difference-between-the-dimensions-of-the-ct-and-rt-dose/38386)

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**Author:** [@azam](https://discourse.slicer.org/u/azam)\
**Replies:** 3\
**Last updated:** [July 6, 2025, 11:30am UTC](https://discourse.slicer.org/t/difference-between-the-dimensions-of-the-ct-and-rt-dose/38386 "2025-07-06T11:30:11Z")

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Hi everyone I have CT, RT dose and RT structure files that I have exported from the treatment planning system. As you can see in the figure, the dimensions of the CT image and RT dose are different. How do these two fil…

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## [How to incorporate FixedParameters in manual calculation of affine linear transformation](https://discourse.slicer.org/t/how-to-incorporate-fixedparameters-in-manual-calculation-of-affine-linear-transformation/43584)

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**Author:** [@spichardo](https://discourse.slicer.org/u/spichardo)\
**Replies:** 3\
**Last updated:** [July 4, 2025, 5:34pm UTC](https://discourse.slicer.org/t/how-to-incorporate-fixedparameters-in-manual-calculation-of-affine-linear-transformation/43584 "2025-07-04T17:34:56Z")

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Hi, I just noticed that sometime between release 5.6.2 and 5.8.1 some changes were made how the linear transform text files were saved. In particular, now FixedParameters have values different from 0. I used this origin…

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## [Segmenting lung PET/CT](https://discourse.slicer.org/t/segmenting-lung-pet-ct/43560)

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**Author:** [@ScleroPID](https://discourse.slicer.org/u/ScleroPID)\
**Replies:** 1\
**Last updated:** [July 4, 2025, 2:28am UTC](https://discourse.slicer.org/t/segmenting-lung-pet-ct/43560 "2025-07-04T02:28:27Z")

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Hi, I’m new to 3D Slicer and still trying to get the hang of it. I would really appreciate your help with a few questions: I’m looking for an easy and reproducible way to segment lung CT scans. I’ve tried using the Se…

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## [Edit the rotation tags in DICOM CT slices without modify the image](https://discourse.slicer.org/t/edit-the-rotation-tags-in-dicom-ct-slices-without-modify-the-image/43566)

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**Author:** [@JFC](https://discourse.slicer.org/u/JFC)\
**Replies:** 4\
**Last updated:** [July 4, 2025, 2:25am UTC](https://discourse.slicer.org/t/edit-the-rotation-tags-in-dicom-ct-slices-without-modify-the-image/43566 "2025-07-04T02:25:28Z")

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Dear all: I would like to know the option in 3D Slicer to edic the DICOM tags regarding to the patient rotation, without modify the CT images. Please, anyone has experinec with this issue?. Thanks so mch. JFC Barcelo…

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## [Recent builds posted on slicer.cdash.org are not rendered properly](https://discourse.slicer.org/t/recent-builds-posted-on-slicer-cdash-org-are-not-rendered-properly/43591)

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**Author:** [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Replies:** 1\
**Last updated:** [July 3, 2025, 4:41pm UTC](https://discourse.slicer.org/t/recent-builds-posted-on-slicer-cdash-org-are-not-rendered-properly/43591 "2025-07-03T16:41:48Z")

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This issue is now tracked here: https://github.com/Kitware/CDash/issues/2970 Expected Behavior The “Nightly-Packages” section of the CDash project page should consistently display all expected builds for a given day. Fo…

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## [W: ContourData (3006,0050) violates maximum VR length in ContourSequence](https://discourse.slicer.org/t/w-contourdata-3006-0050-violates-maximum-vr-length-in-contoursequence/43565)

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**Author:** [@ferhue](https://discourse.slicer.org/u/ferhue)\
**Replies:** 2\
**Last updated:** [July 3, 2025, 5:47am UTC](https://discourse.slicer.org/t/w-contourdata-3006-0050-violates-maximum-vr-length-in-contoursequence/43565 "2025-07-03T05:47:39Z")

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Hello, When loading in Slicer, I get the following warning printed many times: W: ContourData (3006,0050) violates maximum VR length in ContourSequence I do not fully understand this, since the largest sequence contai…

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## [Cannot find libraries when loading custom loadable extension because of versioning](https://discourse.slicer.org/t/cannot-find-libraries-when-loading-custom-loadable-extension-because-of-versioning/43582)

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**Author:** [@glso](https://discourse.slicer.org/u/glso)\
**Replies:** 1\
**Last updated:** [July 2, 2025, 5:00pm UTC](https://discourse.slicer.org/t/cannot-find-libraries-when-loading-custom-loadable-extension-because-of-versioning/43582 "2025-07-02T17:00:32Z")

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Hi, I built a loadable extension which builds and runs successfully on my Slicer-Release (5.9), built from source code on x86\_64 architecture on MacOS. My CMake version is 3.22.6. I wanted to package the extension so t…

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## [Closed curve constrained to model surface jumps to weird locations](https://discourse.slicer.org/t/closed-curve-constrained-to-model-surface-jumps-to-weird-locations/43575)

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**Author:** [@cliftong](https://discourse.slicer.org/u/cliftong)\
**Replies:** 2\
**Last updated:** [July 2, 2025, 4:39pm UTC](https://discourse.slicer.org/t/closed-curve-constrained-to-model-surface-jumps-to-weird-locations/43575 "2025-07-02T16:39:31Z")

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Mac OSX Slicer 5.9.0-2025-04-25 I’m hoping to use a closed curve to make a new surface model from an existing model, but the closed curve behaves weirdly when I try to constrain it to the model surface. Based on previ…

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## [TotalSegmentator failed to compute – ModuleNotFoundError: No module named 'skimage.morphology'](https://discourse.slicer.org/t/totalsegmentator-failed-to-compute-modulenotfounderror-no-module-named-skimage-morphology/43577)

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**Author:** [@Mael](https://discourse.slicer.org/u/Mael)\
**Replies:** 0\
**Last updated:** [July 2, 2025, 2:40pm UTC](https://discourse.slicer.org/t/totalsegmentator-failed-to-compute-modulenotfounderror-no-module-named-skimage-morphology/43577 "2025-07-02T14:40:14Z")

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Hi everyone, I’m trying to use the TotalSegmentator extension in 3D Slicer, but I get an error when I try to compute the segmentation. The error message is: ModuleNotFoundError: No module named 'skimage.morphology' I…

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## [2025.07.01 Weekly Meeting](https://discourse.slicer.org/t/2025-07-01-weekly-meeting/43561)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 3\
**Last updated:** [July 2, 2025, 1:37pm UTC](https://discourse.slicer.org/t/2025-07-01-weekly-meeting/43561 "2025-07-02T13:37:03Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. a Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to p…

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## [Can I export the data for multiple points at once?](https://discourse.slicer.org/t/can-i-export-the-data-for-multiple-points-at-once/42189)

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**Author:** [@MIZ](https://discourse.slicer.org/u/MIZ)\
**Replies:** 8\
**Last updated:** [July 2, 2025, 1:13am UTC](https://discourse.slicer.org/t/can-i-export-the-data-for-multiple-points-at-once/42189 "2025-07-02T01:13:35Z")

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I am landmarking approximately 44 points in a mesh. Exporting the x,y,z coordinates into an .fcsv file is extremely laborious. Is there any way to export the data for all 44 points simultaneously? Also, it would be great…

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## [2025.06.17 Weekly Meeting](https://discourse.slicer.org/t/2025-06-17-weekly-meeting/43388)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 3\
**Last updated:** [July 1, 2025, 2:09pm UTC](https://discourse.slicer.org/t/2025-06-17-weekly-meeting/43388 "2025-07-01T14:09:02Z")

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Today, we will be having our next weekly hangout at 11:00 AM ET until 12:00 PM ET, after the project week meeting. We will be reusing the Project Week Zoom link. Anyone is welcome to join at this link: Launch Meeting -…

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## [Help integrating vtkU3DExporter module in Slicer](https://discourse.slicer.org/t/help-integrating-vtku3dexporter-module-in-slicer/43540)

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**Author:** [@alientex](https://discourse.slicer.org/u/alientex)\
**Replies:** 4\
**Last updated:** [July 1, 2025, 1:43pm UTC](https://discourse.slicer.org/t/help-integrating-vtku3dexporter-module-in-slicer/43540 "2025-07-01T13:43:56Z")

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Hello, I came across the VTKU3DExporter module, which allows exporting a VTK scene to the U3D file format. I would like to use the generated U3D file for including in 3D PDFs. I have successfully built this module inde…

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## [Chunky results from WrapSolidify](https://discourse.slicer.org/t/chunky-results-from-wrapsolidify/43546)

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**Author:** [@Ajna\_R](https://discourse.slicer.org/u/Ajna_R)\
**Replies:** 3\
**Last updated:** [July 1, 2025, 1:27pm UTC](https://discourse.slicer.org/t/chunky-results-from-wrapsolidify/43546 "2025-07-01T13:27:55Z")

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Wrap Solidify was working very well for shrinkwrapping my models, but now suddenly it has started only making either very boxy segments (carve holes set at 35mm or higher) or tiny fragments (carve holes set at 34mm or lo…

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## [Registration for liver donor CT and MR ](https://discourse.slicer.org/t/registration-for-liver-donor-ct-and-mr/43550)

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**Author:** [@MinHo\_Shin](https://discourse.slicer.org/u/MinHo_Shin)\
**Replies:** 1\
**Last updated:** [June 30, 2025, 11:19pm UTC](https://discourse.slicer.org/t/registration-for-liver-donor-ct-and-mr/43550 "2025-06-30T23:19:35Z")

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Dear community, I am a hepatobiliary surgeon using 3D Slicer for preoperative planning. Until now, I have been segmenting the portal vein, hepatic vein, and liver parenchyma from the delayed phase of a CT scan for liver…

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## [Making Markups and Exporting json in just one screen](https://discourse.slicer.org/t/making-markups-and-exporting-json-in-just-one-screen/43551)

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**Author:** [@Davi\_Pultrini](https://discourse.slicer.org/u/Davi_Pultrini)\
**Replies:** 1\
**Last updated:** [June 30, 2025, 7:32pm UTC](https://discourse.slicer.org/t/making-markups-and-exporting-json-in-just-one-screen/43551 "2025-06-30T19:32:04Z")

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Hello, I would like to build a module so that there is a screen where the person presses a button and the image loads, he makes the markings and presses a button to save the labels. But before doing the module, I want t…

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## [Changing the voxel size after segmentation](https://discourse.slicer.org/t/changing-the-voxel-size-after-segmentation/18584)

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**Author:** [@Philipp\_Maintz](https://discourse.slicer.org/u/Philipp_Maintz)\
**Replies:** 6\
**Last updated:** [June 30, 2025, 7:07pm UTC](https://discourse.slicer.org/t/changing-the-voxel-size-after-segmentation/18584 "2025-06-30T19:07:36Z")

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I have done multiple segmentations. The problem is I now realized that the voxel size is to big. Can I still change them and if so in what module?

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## [Error loading SlicerMorphRC.py](https://discourse.slicer.org/t/error-loading-slicermorphrc-py/43536)

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**Author:** [@AriD](https://discourse.slicer.org/u/AriD)\
**Replies:** 2\
**Last updated:** [June 30, 2025, 7:33am UTC](https://discourse.slicer.org/t/error-loading-slicermorphrc-py/43536 "2025-06-30T07:33:07Z")

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Hello, I’m using 3D Slicer version 5.8.1 and have been working with the SlicerMorph extension for some time. Recently, I started receiving the following error: “error loading SlicerMorphRC.py module ‘slicer’ has no at…

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## [Plane settings not registated](https://discourse.slicer.org/t/plane-settings-not-registated/43531)

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**Author:** [@philippepellerin](https://discourse.slicer.org/u/philippepellerin)\
**Replies:** 6\
**Last updated:** [June 28, 2025, 3:02pm UTC](https://discourse.slicer.org/t/plane-settings-not-registated/43531 "2025-06-28T15:02:24Z")

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Hi, the plane setting in the landmarks module is not registrated. I saved, as a bundle, some plane settings where I unticked the case plane setting visibility and setting the sliding ruler of visibility to 0. When I reo…

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## [Color tones change after OBJ export – how to preserve original shading?](https://discourse.slicer.org/t/color-tones-change-after-obj-export-how-to-preserve-original-shading/43417)

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**Author:** [@JohnWick](https://discourse.slicer.org/u/JohnWick)\
**Replies:** 11\
**Last updated:** [June 28, 2025, 1:31pm UTC](https://discourse.slicer.org/t/color-tones-change-after-obj-export-how-to-preserve-original-shading/43417 "2025-06-28T13:31:53Z")

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Dear 3D Slicer Developers and Community, I am experiencing an issue when exporting one or more 3D models from 3D Slicer in OBJ format. While the original color itself (i.e., the RGB values) is preserved in the exported .…

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## [Total Segmentator not working](https://discourse.slicer.org/t/total-segmentator-not-working/43506)

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**Author:** [@manjula](https://discourse.slicer.org/u/manjula)\
**Replies:** 6\
**Last updated:** [June 27, 2025, 7:39pm UTC](https://discourse.slicer.org/t/total-segmentator-not-working/43506 "2025-06-27T19:39:19Z")

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Hi, Total Segmentator worked just fine in my laptop but suddenly it stopped working |Processor|13th Gen Intel(R) Core™ i9-13980HX 2.20 GHz| |Installed RAM|64.0 GB | NVIDIA RTX 4080 12GB Traceback (most recent call …

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## [Segment Editor can not draw unless MRMLSliceView widget is displayed in full screen](https://discourse.slicer.org/t/segment-editor-can-not-draw-unless-mrmlsliceview-widget-is-displayed-in-full-screen/43527)

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**Author:** [@stone\_S](https://discourse.slicer.org/u/stone_S)\
**Replies:** 1\
**Last updated:** [June 27, 2025, 4:36pm UTC](https://discourse.slicer.org/t/segment-editor-can-not-draw-unless-mrmlsliceview-widget-is-displayed-in-full-screen/43527 "2025-06-27T16:36:47Z")

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Operating system:ubuntu 22.04 Slicer version:5.0.3 Expected behavior:Segment Editor can use in normal size widget Actual behavior:After clicking the paint button, left mouse click in the SliceView window has no respon…

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## [Talk2View - The medical viewer you can talk to - Built on 3D Slicer](https://discourse.slicer.org/t/talk2view-the-medical-viewer-you-can-talk-to-built-on-3d-slicer/43423)

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**Author:** [@andy97](https://discourse.slicer.org/u/andy97)\
**Replies:** 4\
**Last updated:** [June 27, 2025, 2:04pm UTC](https://discourse.slicer.org/t/talk2view-the-medical-viewer-you-can-talk-to-built-on-3d-slicer/43423 "2025-06-27T14:04:33Z")

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Hi everyone, We’re excited to share the first very early (and experimental) release of Talk2View, the medical image viewer you can talk to. The idea behind Talk2View is that rather than navigating through complex menus…

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## [How can i easily process aorta & branch segmentation and measure the x, y, and z axes of each part](https://discourse.slicer.org/t/how-can-i-easily-process-aorta-branch-segmentation-and-measure-the-x-y-and-z-axes-of-each-part/43519)

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**Author:** [@Yoo](https://discourse.slicer.org/u/Yoo)\
**Replies:** 0\
**Last updated:** [June 27, 2025, 10:11am UTC](https://discourse.slicer.org/t/how-can-i-easily-process-aorta-branch-segmentation-and-measure-the-x-y-and-z-axes-of-each-part/43519 "2025-06-27T10:11:49Z")

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Hello everyone, I am a new user who just learned about slicer. I am having a hard time learning about each one, so I need help. In the abdominal CT(CE), the aorta and IVC are lightened both in the delayed phase, and w…

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## [Talk2View - The medical viewer you can talk to - Now available as a 3D Slicer extension](https://discourse.slicer.org/t/talk2view-the-medical-viewer-you-can-talk-to-now-available-as-a-3d-slicer-extension/43515)

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**Author:** [@benzwick](https://discourse.slicer.org/u/benzwick)\
**Replies:** 0\
**Last updated:** [June 27, 2025, 7:53am UTC](https://discourse.slicer.org/t/talk2view-the-medical-viewer-you-can-talk-to-now-available-as-a-3d-slicer-extension/43515 "2025-06-27T07:53:39Z")

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Hi everyone, We are thrilled to announce that based on popular demand following the release of our Talk2View desktop application last week, we have now released Talk2View as an extension for 3D Slicer. This means that 3…

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## [Slicer Not Responding when accessing DICOM Database](https://discourse.slicer.org/t/slicer-not-responding-when-accessing-dicom-database/43509)

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**Author:** [@CSalt](https://discourse.slicer.org/u/CSalt)\
**Replies:** 2\
**Last updated:** [June 26, 2025, 11:28pm UTC](https://discourse.slicer.org/t/slicer-not-responding-when-accessing-dicom-database/43509 "2025-06-26T23:28:51Z")

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Hello, I have been working on a project for a while now, and starting around two weeks ago, I have suddenly had problems getting DICOM files that I previously imported into the Slicer database (and was able to load norm…

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## [Use Volume or Surface Area for 2D Ultrasound Segmentation?](https://discourse.slicer.org/t/use-volume-or-surface-area-for-2d-ultrasound-segmentation/43508)

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**Author:** [@Arian\_Amini](https://discourse.slicer.org/u/Arian_Amini)\
**Replies:** 0\
**Last updated:** [June 26, 2025, 7:39pm UTC](https://discourse.slicer.org/t/use-volume-or-surface-area-for-2d-ultrasound-segmentation/43508 "2025-06-26T19:39:01Z")

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Hello, I have segmented my ROI of 2D ultrasound images, and confused on how to measure the surface area of my segmentation. I exported a Segment Statistics table that includes Voxel Count, Volume (mm3), and Surface are…

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## [How to determine the resolution of the STL file exported from the 3D slicer?](https://discourse.slicer.org/t/how-to-determine-the-resolution-of-the-stl-file-exported-from-the-3d-slicer/34087)

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**Author:** [@Yunus](https://discourse.slicer.org/u/Yunus)\
**Replies:** 11\
**Last updated:** [June 26, 2025, 5:31pm UTC](https://discourse.slicer.org/t/how-to-determine-the-resolution-of-the-stl-file-exported-from-the-3d-slicer/34087 "2025-06-26T17:31:21Z")

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I have segmented kidneys and other organs with 3D Slicer and exported them as an STL file. I also need to specify the model resolution, but I don’t know how to do this. What I have tried so far: before I exported the …

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## [Dynamic badge for papers with code, number of citations](https://discourse.slicer.org/t/dynamic-badge-for-papers-with-code-number-of-citations/43505)

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**Author:** [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Replies:** 0\
**Last updated:** [June 26, 2025, 5:18pm UTC](https://discourse.slicer.org/t/dynamic-badge-for-papers-with-code-number-of-citations/43505 "2025-06-26T17:18:45Z")

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Hi You can get the markdown code of the dynamic badge just from your paper’s DOI so you can add it to your README.md For example, for some relatively successful paper with more than 500 citations, you get an image th…

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