# Support

**URL:** https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=50

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

**Page:** 51

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## [Analyzing one lung at a time](https://discourse.slicer.org/t/analyzing-one-lung-at-a-time/41899)

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**Author:** [@Burhaan\_Toor](https://discourse.slicer.org/u/Burhaan_Toor)\
**Replies:** 1\
**Last updated:** [February 27, 2025, 3:16pm UTC](https://discourse.slicer.org/t/analyzing-one-lung-at-a-time/41899 "2025-02-27T15:16:27Z")

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Hello, I wanted to know if there was any I could adjust my 3D view so that I could see one lung at a time, without having to segment the new lung. I would like to clean up the lung from within but It is hard to do so as …

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## [Optical Tracking System Recommendations](https://discourse.slicer.org/t/optical-tracking-system-recommendations/40670)

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**Author:** [@PhotoJoe](https://discourse.slicer.org/u/PhotoJoe)\
**Replies:** 2\
**Last updated:** [February 26, 2025, 7:56pm UTC](https://discourse.slicer.org/t/optical-tracking-system-recommendations/40670 "2025-02-26T19:56:52Z")

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Hi all, I am brand new to this area, so I’m sorry for my very basic and limited understanding. I have joined a research team that is looking at using SlicerIGT in combination with Ultrasound Transducers and other camera…

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## [Do I need to re-download the sample data every time I reopen 3D Slicer and use the SlicerLiver extension?](https://discourse.slicer.org/t/do-i-need-to-re-download-the-sample-data-every-time-i-reopen-3d-slicer-and-use-the-slicerliver-extension/41841)

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**Author:** [@feiyu](https://discourse.slicer.org/u/feiyu)\
**Replies:** 4\
**Last updated:** [February 26, 2025, 10:42am UTC](https://discourse.slicer.org/t/do-i-need-to-re-download-the-sample-data-every-time-i-reopen-3d-slicer-and-use-the-slicerliver-extension/41841 "2025-02-26T10:42:45Z")

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After downloading and installing the slicerliver extension, in order to test the extension, when loading LiverVolume and LiverSementation data from the sample data module, it took too long to load. I guess it was a netwo…

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## [Can I further create sub-shapes of endocast volume?](https://discourse.slicer.org/t/can-i-further-create-sub-shapes-of-endocast-volume/41132)

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**Author:** [@PitaChib](https://discourse.slicer.org/u/PitaChib)\
**Replies:** 2\
**Last updated:** [February 26, 2025, 5:56am UTC](https://discourse.slicer.org/t/can-i-further-create-sub-shapes-of-endocast-volume/41132 "2025-02-26T05:56:05Z")

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I have a bunch of micro-CT scanned mice skulls that I have thresholded them into skull segmentations. Then, I used wrap solidify to get the whole endocast volume of the biggest cavity. Since I don’t have any wet tis…

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## [Radiomic features](https://discourse.slicer.org/t/radiomic-features/41875)

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**Author:** [@Aya\_Gamal](https://discourse.slicer.org/u/Aya_Gamal)\
**Replies:** 3\
**Last updated:** [February 26, 2025, 12:24am UTC](https://discourse.slicer.org/t/radiomic-features/41875 "2025-02-26T00:24:47Z")

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When I extract features from quantitative indices or quantitative reporting, the values of min, max, mean, and TLG are extremely high. Is this normal, or is there a problem ?

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## [Inquiry Spatial Coordinates](https://discourse.slicer.org/t/inquiry-spatial-coordinates/41874)

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**Author:** [@MPARHAM](https://discourse.slicer.org/u/MPARHAM)\
**Replies:** 6\
**Last updated:** [February 25, 2025, 9:16pm UTC](https://discourse.slicer.org/t/inquiry-spatial-coordinates/41874 "2025-02-25T21:16:16Z")

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Hi everyone, Glad to be back on the forum and hope everyone had a great start to this year. I had a question about exporting files and coordinate systems in 3D Slicer. My objective is to recreate the segmentation used …

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## [Commercial partner ](https://discourse.slicer.org/t/commercial-partner/41865)

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**Author:** [@sanjayrs493](https://discourse.slicer.org/u/sanjayrs493)\
**Replies:** 1\
**Last updated:** [February 25, 2025, 1:51pm UTC](https://discourse.slicer.org/t/commercial-partner/41865 "2025-02-25T13:51:29Z")

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We are interested in using the Slicer software to develop a commercial medical device product. Could you please guide us on the process to become a commercial partner. sanjay

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## [Registration library not available](https://discourse.slicer.org/t/registration-library-not-available/41803)

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**Author:** [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Replies:** 6\
**Last updated:** [February 25, 2025, 1:15pm UTC](https://discourse.slicer.org/t/registration-library-not-available/41803 "2025-02-25T13:15:26Z")

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Hi all, I spent quite some time looking for some real test data for deformable registration, without success (I only found a single femur for example, but not even an abdomen or chest that would demonstrate the capabili…

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## [CT scan can anyone read these ?](https://discourse.slicer.org/t/ct-scan-can-anyone-read-these/41837)

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**Author:** [@Knich](https://discourse.slicer.org/u/Knich)\
**Replies:** 1\
**Last updated:** [February 25, 2025, 12:12pm UTC](https://discourse.slicer.org/t/ct-scan-can-anyone-read-these/41837 "2025-02-25T12:12:55Z")

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## [What are the best effects for segmentation?](https://discourse.slicer.org/t/what-are-the-best-effects-for-segmentation/41816)

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**Author:** [@Sol\_Aco](https://discourse.slicer.org/u/Sol_Aco)\
**Replies:** 1\
**Last updated:** [February 25, 2025, 12:11pm UTC](https://discourse.slicer.org/t/what-are-the-best-effects-for-segmentation/41816 "2025-02-25T12:11:02Z")

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Hi! I need a extensions manager for create some segments quickly. I am using images confocal microscope.

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## [Consulta sobre efecto threshold](https://discourse.slicer.org/t/consulta-sobre-efecto-threshold/41815)

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**Author:** [@Sol\_Aco](https://discourse.slicer.org/u/Sol_Aco)\
**Replies:** 3\
**Last updated:** [February 24, 2025, 9:05pm UTC](https://discourse.slicer.org/t/consulta-sobre-efecto-threshold/41815 "2025-02-24T21:05:03Z")

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Hola, tengo una consulta El efecto threshold solo se puede aplicar a un solo segmento? No entiendo bien como funciona en la actual version 5.8.0

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## [Registration of CT images based on voxel intensity](https://discourse.slicer.org/t/registration-of-ct-images-based-on-voxel-intensity/41857)

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**Author:** [@azam](https://discourse.slicer.org/u/azam)\
**Replies:** 1\
**Last updated:** [February 24, 2025, 3:32pm UTC](https://discourse.slicer.org/t/registration-of-ct-images-based-on-voxel-intensity/41857 "2025-02-24T15:32:43Z")

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Hi everyone I have two DICOM CT images and I want to register them based on voxel intensity (not organ contour) using 3D Slicer software. Can you guide me? 1- Which of the registration algorithms are available in this …

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## [Extract images from Dicom](https://discourse.slicer.org/t/extract-images-from-dicom/12174)

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**Author:** [@Melodicpinpon](https://discourse.slicer.org/u/Melodicpinpon)\
**Replies:** 16\
**Last updated:** [February 24, 2025, 1:45pm UTC](https://discourse.slicer.org/t/extract-images-from-dicom/12174 "2025-02-24T13:45:20Z")

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Good aftrenoon, I would like to export each slice of a dicom as an image. Ideally, it should be a sequence of png. slices with transparency; but it can also be a sequence of jpg, or a movie that respects the proportion…

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## [Slicer 5.8.0 totalsegmentator erro](https://discourse.slicer.org/t/slicer-5-8-0-totalsegmentator-erro/41856)

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**Author:** [@hepato](https://discourse.slicer.org/u/hepato)\
**Replies:** 4\
**Last updated:** [February 24, 2025, 12:59pm UTC](https://discourse.slicer.org/t/slicer-5-8-0-totalsegmentator-erro/41856 "2025-02-24T12:59:07Z")

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I installed slicer 5.8.0 and extension of total segmentator .But total segmentator did not work successfully. And total segmentator run successfully in slicer 5.6.2. I reinstalled slicer 5.8.0 and extension of total s…

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## [Circle ROI in markup tool](https://discourse.slicer.org/t/circle-roi-in-markup-tool/41853)

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**Author:** [@Ash\_Alarfaj](https://discourse.slicer.org/u/Ash_Alarfaj)\
**Replies:** 1\
**Last updated:** [February 24, 2025, 12:53pm UTC](https://discourse.slicer.org/t/circle-roi-in-markup-tool/41853 "2025-02-24T12:53:16Z")

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Hi In mark up there is only rectangular box ROI, I need circle ROI? to measure the signal in MRI

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## [OpenDose3D: DICOMError - Attribute 'acquisition' is empty (Siemens SPECT-CT)](https://discourse.slicer.org/t/opendose3d-dicomerror-attribute-acquisition-is-empty-siemens-spect-ct/41392)

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**Author:** [@Angie\_Tatiana\_Marin](https://discourse.slicer.org/u/Angie_Tatiana_Marin)\
**Replies:** 5\
**Last updated:** [February 24, 2025, 1:19am UTC](https://discourse.slicer.org/t/opendose3d-dicomerror-attribute-acquisition-is-empty-siemens-spect-ct/41392 "2025-02-24T01:19:58Z")

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Hello everyone, I am using 3D Slicer 5.6.2 with the OpenDose3D module to process SPECT-CT images from a Siemens scanner for quantitative imaging with Lu-177, Tc-99m, and I-131. However, I am encountering the following e…

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## [IGT fiducial registration : How to have a fix coordinate system](https://discourse.slicer.org/t/igt-fiducial-registration-how-to-have-a-fix-coordinate-system/31448)

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**Author:** [@saeedeh\_lavasany](https://discourse.slicer.org/u/saeedeh_lavasany)\
**Replies:** 3\
**Last updated:** [February 23, 2025, 6:23pm UTC](https://discourse.slicer.org/t/igt-fiducial-registration-how-to-have-a-fix-coordinate-system/31448 "2025-02-23T18:23:44Z")

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Hello I am trying to use IGT fiducial registration to register a tool that position is tracked by an EMT sensor to a CT model. I’m using two EM sensors: one is called the “stylus,” and the other is named the “reference.…

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## [After changing volume geometry, a function "fill between slices" does not work](https://discourse.slicer.org/t/after-changing-volume-geometry-a-function-fill-between-slices-does-not-work/41848)

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**Author:** [@MaxVs](https://discourse.slicer.org/u/MaxVs)\
**Replies:** 0\
**Last updated:** [February 23, 2025, 2:02pm UTC](https://discourse.slicer.org/t/after-changing-volume-geometry-a-function-fill-between-slices-does-not-work/41848 "2025-02-23T14:02:00Z")

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Hi! Can you explain me, why after changing the volume geometry, the function “fill between slices” does not work. I mean, it works till I click apply, and nothing happens. Spaces between slices is not filled and it come…

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## [Question about Real-time Ultrasound Volume Reconstruction using SteamVR Tracker](https://discourse.slicer.org/t/question-about-real-time-ultrasound-volume-reconstruction-using-steamvr-tracker/41846)

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**Author:** [@MasatoshiOBA](https://discourse.slicer.org/u/MasatoshiOBA)\
**Replies:** 0\
**Last updated:** [February 23, 2025, 10:42am UTC](https://discourse.slicer.org/t/question-about-real-time-ultrasound-volume-reconstruction-using-steamvr-tracker/41846 "2025-02-23T10:42:33Z")

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Question: Overview: I am planning to perform ultrasound volume reconstruction using a SteamVR-compatible tracker. Currently, I have successfully used pyigtl to send tracking data to Slicer, and Slicer receives it as a T…

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## [slicerliver：Here are a few small questions regarding loading Sample Data](https://discourse.slicer.org/t/slicerliver-here-are-a-few-small-questions-regarding-loading-sample-data/41840)

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**Author:** [@feiyu](https://discourse.slicer.org/u/feiyu)\
**Replies:** 0\
**Last updated:** [February 23, 2025, 4:00am UTC](https://discourse.slicer.org/t/slicerliver-here-are-a-few-small-questions-regarding-loading-sample-data/41840 "2025-02-23T04:00:46Z")

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After downloading and installing the slicerliver extension, in order to test the extension, when loading LiverVolume and LiverSementation data from the sample data module, it took too long to load. I guess it was a netwo…

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## [slimplify the software and a way to change the dicom to a stl file.](https://discourse.slicer.org/t/slimplify-the-software-and-a-way-to-change-the-dicom-to-a-stl-file/41834)

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**Author:** [@forestiers](https://discourse.slicer.org/u/forestiers)\
**Replies:** 1\
**Last updated:** [February 23, 2025, 1:48am UTC](https://discourse.slicer.org/t/slimplify-the-software-and-a-way-to-change-the-dicom-to-a-stl-file/41834 "2025-02-23T01:48:04Z")

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Is there a way of making this software less complicated. I just want to be able to download my ct and mri files into the software and have a 3d image shown on the screen and then be able to convert the dicom images to a …

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## [Extension not found error](https://discourse.slicer.org/t/extension-not-found-error/41811)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 5\
**Last updated:** [February 23, 2025, 12:50am UTC](https://discourse.slicer.org/t/extension-not-found-error/41811 "2025-02-23T00:50:15Z")

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On the latest stable on Linux, I am getting this error for Photogrammetry extension: Download of extension failed, could not find an extension with id = 67b7462ed33fe21b38cc2287 Dashboard seems it is as built: @james…

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## [Different Colors for Warnings and Errors in Slicer’s Python Console](https://discourse.slicer.org/t/different-colors-for-warnings-and-errors-in-slicer-s-python-console/41835)

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**Author:** [@LenaGiebeler](https://discourse.slicer.org/u/LenaGiebeler)\
**Replies:** 1\
**Last updated:** [February 22, 2025, 10:11pm UTC](https://discourse.slicer.org/t/different-colors-for-warnings-and-errors-in-slicer-s-python-console/41835 "2025-02-22T22:11:31Z")

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Hi, would it be possible to differentiate warnings and errors in the Slicer Python console by using different colors? For example, displaying warnings in yellow while keeping errors in red. When dealing with a large nu…

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## [Do we have a way to extract the impregnation curve, i.e. the perfusion (intensity times) of a segmentation from the MRI?](https://discourse.slicer.org/t/do-we-have-a-way-to-extract-the-impregnation-curve-i-e-the-perfusion-intensity-times-of-a-segmentation-from-the-mri/41836)

<div class="topic-metadata">

**Author:** [@Asaf\_raza](https://discourse.slicer.org/u/Asaf_raza)\
**Replies:** 0\
**Last updated:** [February 22, 2025, 9:08pm UTC](https://discourse.slicer.org/t/do-we-have-a-way-to-extract-the-impregnation-curve-i-e-the-perfusion-intensity-times-of-a-segmentation-from-the-mri/41836 "2025-02-22T21:08:23Z")

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Do we have a way to extract the impregnation curve, i.e. the perfusion (intensity times) of a segmentation from the MRI?

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## [Having issues with my DICOM file while segmenting](https://discourse.slicer.org/t/having-issues-with-my-dicom-file-while-segmenting/41831)

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**Author:** [@Jane\_Frost](https://discourse.slicer.org/u/Jane_Frost)\
**Replies:** 0\
**Last updated:** [February 22, 2025, 9:06pm UTC](https://discourse.slicer.org/t/having-issues-with-my-dicom-file-while-segmenting/41831 "2025-02-22T21:06:42Z")

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Upon uploading my DICOM data to the application, I noticed insufficient contrast for effective 3D modeling of the skull, leading to an imperfect model with holes and bumps in unrelated parts. This issue is critical as it…

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## [3D Slicer for iPAD with M1 processor](https://discourse.slicer.org/t/3d-slicer-for-ipad-with-m1-processor/19824)

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**Author:** [@ylcnkzy](https://discourse.slicer.org/u/ylcnkzy)\
**Replies:** 8\
**Last updated:** [February 21, 2025, 6:06pm UTC](https://discourse.slicer.org/t/3d-slicer-for-ipad-with-m1-processor/19824 "2025-02-21T18:06:34Z")

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Dear all, I am just wondering if it is possible to use a 3D slicer software with an iPad (M1 processor). It would be great to take advantage of the stylus. It would be great to hear advices and comments. Best.

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## [Acquring different metrics](https://discourse.slicer.org/t/acquring-different-metrics/41796)

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**Author:** [@marwa\_mohamed](https://discourse.slicer.org/u/marwa_mohamed)\
**Replies:** 1\
**Last updated:** [February 21, 2025, 5:43pm UTC](https://discourse.slicer.org/t/acquring-different-metrics/41796 "2025-02-21T17:43:03Z")

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Please i need help How can i acquire different parameters like fractional anisotrop and mean diffuisvity from cereberal white matter tract i have extracted

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## [How do you find minimum and maximum diameters using the closed curve function?](https://discourse.slicer.org/t/how-do-you-find-minimum-and-maximum-diameters-using-the-closed-curve-function/13944)

<div class="topic-metadata">

**Author:** [@Trex48](https://discourse.slicer.org/u/Trex48)\
**Replies:** 9\
**Last updated:** [February 21, 2025, 12:33pm UTC](https://discourse.slicer.org/t/how-do-you-find-minimum-and-maximum-diameters-using-the-closed-curve-function/13944 "2025-02-21T12:33:45Z")

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RT, I am trying to find the minimum and maximum diameters of a irregular closed curve in the shape of a circle/oval. Does anyone know how to do this via python code or another extension? Thanks!

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## [maximum & minimum length of a liver tumor along the center](https://discourse.slicer.org/t/maximum-minimum-length-of-a-liver-tumor-along-the-center/41794)

<div class="topic-metadata">

**Author:** [@CNCLD\_Ragama](https://discourse.slicer.org/u/CNCLD_Ragama)\
**Replies:** 0\
**Last updated:** [February 20, 2025, 11:11pm UTC](https://discourse.slicer.org/t/maximum-minimum-length-of-a-liver-tumor-along-the-center/41794 "2025-02-20T23:11:26Z")

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hey i need an immediate response!! :fire::fire: so, i’m gonna measure the maximum & minimum length of a liver tumor along the center of the shape how exactly can i do this?? :thinking: need a clear method asap!!

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## [TotalSegmentator update 2.6 Not Working](https://discourse.slicer.org/t/totalsegmentator-update-2-6-not-working/41772)

<div class="topic-metadata">

**Author:** [@Khaldoun](https://discourse.slicer.org/u/Khaldoun)\
**Replies:** 1\
**Last updated:** [February 20, 2025, 7:47pm UTC](https://discourse.slicer.org/t/totalsegmentator-update-2-6-not-working/41772 "2025-02-20T19:47:37Z")

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Operating system:windows 10 Professional Slicer version: 5.8.0 Expected behavior:Previous version 2.4 of TotalSementator was perfectly working but after the update to 2.6 even forcing reinstall it is not working and it…

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