# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=102

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

**Page:** 103

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## [Scaling segmentation models in X-Y plane](https://discourse.slicer.org/t/scaling-segmentation-models-in-x-y-plane/35417)

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**Author:** [@Von](https://discourse.slicer.org/u/Von)\
**Replies:** 3\
**Last updated:** [April 11, 2024, 5:41pm UTC](https://discourse.slicer.org/t/scaling-segmentation-models-in-x-y-plane/35417 "2024-04-11T17:41:23Z")

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Operating system: Windows 11 Slicer version: 4.10.2 Expected behavior: Actual behavior: Hello, I have a huge array of screenshots that contains information that I cannot disclose. I manage to make a 3D model of the …

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## [Retrieve threshold values and associated coordinates](https://discourse.slicer.org/t/retrieve-threshold-values-and-associated-coordinates/35439)

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**Author:** [@LeAg](https://discourse.slicer.org/u/LeAg)\
**Replies:** 1\
**Last updated:** [April 11, 2024, 3:25pm UTC](https://discourse.slicer.org/t/retrieve-threshold-values-and-associated-coordinates/35439 "2024-04-11T15:25:13Z")

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I’d like to be able to retrieve the threshold values for the part I’ve segmented with the associated coordinates. The aim is to be able to use it to define mechanical values in finite element software. Do you have any id…

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## [Can I apply transform matrix(Elastix) to slicenode?](https://discourse.slicer.org/t/can-i-apply-transform-matrix-elastix-to-slicenode/35427)

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**Author:** [@matrosica0808](https://discourse.slicer.org/u/matrosica0808)\
**Replies:** 1\
**Last updated:** [April 11, 2024, 3:21pm UTC](https://discourse.slicer.org/t/can-i-apply-transform-matrix-elastix-to-slicenode/35427 "2024-04-11T15:21:14Z")

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Instead of applying the Transform matrix to the Volume, I want to apply it to the SliceNode. There is a problem with image warping when applied to Volume. I want to apply it to the slicenode of the axial coronal and sa…

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## [How to export renderings to .stl or .obj](https://discourse.slicer.org/t/how-to-export-renderings-to-stl-or-obj/35438)

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**Author:** [@laz](https://discourse.slicer.org/u/laz)\
**Replies:** 1\
**Last updated:** [April 11, 2024, 3:19pm UTC](https://discourse.slicer.org/t/how-to-export-renderings-to-stl-or-obj/35438 "2024-04-11T15:19:49Z")

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apologies for the newbie q, buit when i try to export my renderings as .stl or .obj then it doesn’t work. the created files are 87kB so i’m obviously doing something wrong but can’t work it out. help

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## [Where to find the data](https://discourse.slicer.org/t/where-to-find-the-data/35441)

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**Author:** [@Djoumessi](https://discourse.slicer.org/u/Djoumessi)\
**Replies:** 0\
**Last updated:** [April 11, 2024, 3:18pm UTC](https://discourse.slicer.org/t/where-to-find-the-data/35441 "2024-04-11T15:18:33Z")

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Hello everyone, I am looking to have a 3d reconstruction of the colon for simulation. Sorry if my question may be stupid, I am interested in colon with diverticulitis. I would also like to know if there are any resour…

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## [mHUB runner error](https://discourse.slicer.org/t/mhub-runner-error/35437)

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**Author:** [@dr\_deem](https://discourse.slicer.org/u/dr_deem)\
**Replies:** 0\
**Last updated:** [April 11, 2024, 3:16pm UTC](https://discourse.slicer.org/t/mhub-runner-error/35437 "2024-04-11T15:16:02Z")

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SlicerMrunner error. Python 3.9.10 (main, Apr 5 2024, 01:02:26) \[MSC v.1938 64 bit (AMD64)\] on win32 \[Qt\] Designer: R…

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## [Does 3DSlicer have voronoi algorithms?](https://discourse.slicer.org/t/does-3dslicer-have-voronoi-algorithms/35424)

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**Author:** [@linlin](https://discourse.slicer.org/u/linlin)\
**Replies:** 1\
**Last updated:** [April 11, 2024, 2:44pm UTC](https://discourse.slicer.org/t/does-3dslicer-have-voronoi-algorithms/35424 "2024-04-11T14:44:10Z")

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Availability of myocardial mass fraction calculations

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## [.nii format is missing](https://discourse.slicer.org/t/nii-format-is-missing/35117)

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**Author:** [@ReNeu](https://discourse.slicer.org/u/ReNeu)\
**Replies:** 3\
**Last updated:** [April 11, 2024, 1:03pm UTC](https://discourse.slicer.org/t/nii-format-is-missing/35117 "2024-04-11T13:03:16Z")

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Hi there, I have CT resliced volume saved as a .nii file and I drew a lesion map (segmentation) over the resliced CT volume. I saved the lesion map as a segmentation(.nrrd) file as slicer doesn’t allow me to save it as …

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## [Accessing 'ok' parameter from QInputDialog](https://discourse.slicer.org/t/accessing-ok-parameter-from-qinputdialog/35375)

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**Author:** [@bruce](https://discourse.slicer.org/u/bruce)\
**Replies:** 2\
**Last updated:** [April 11, 2024, 3:03am UTC](https://discourse.slicer.org/t/accessing-ok-parameter-from-qinputdialog/35375 "2024-04-11T03:03:53Z")

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Hello, I’m using a simple input dialog to get a user choice from a list but need to determine if the Cancel button has been pushed. I understand slicer uses PythonQt and it looks like PythonQt provides a BoolResult type…

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## [3d slicer 5.6.1 vtk compile error](https://discourse.slicer.org/t/3d-slicer-5-6-1-vtk-compile-error/34958)

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**Author:** [@xjjgjmeng](https://discourse.slicer.org/u/xjjgjmeng)\
**Replies:** 0\
**Last updated:** [March 18, 2024, 3:02pm UTC](https://discourse.slicer.org/t/3d-slicer-5-6-1-vtk-compile-error/34958 "2024-03-18T15:02:37Z")

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I compiled 3D slicer (5.6.1), but vtk failed to compile successfully (vs2019, Qt5.15.2). It seems to be python related, and one of them reported an error: 16\> Generating Python wrapper sources for vtkAbstractGridConnect…

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## [Real-time communication between slicer and external devices](https://discourse.slicer.org/t/real-time-communication-between-slicer-and-external-devices/35421)

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**Author:** [@Caterina](https://discourse.slicer.org/u/Caterina)\
**Replies:** 1\
**Last updated:** [April 10, 2024, 10:06pm UTC](https://discourse.slicer.org/t/real-time-communication-between-slicer-and-external-devices/35421 "2024-04-10T22:06:38Z")

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Dear support, are there libraries that allow real-time communication between 3D slicer and external devices (in particular ultrasound devices)? If so, which brands of ultrasound devices allow it? Thanks

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## [MRI Fat quantification in liver, muscle, subcutaneous and visceral fat](https://discourse.slicer.org/t/mri-fat-quantification-in-liver-muscle-subcutaneous-and-visceral-fat/35419)

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**Author:** [@DrHumerus](https://discourse.slicer.org/u/DrHumerus)\
**Replies:** 0\
**Last updated:** [April 10, 2024, 6:40pm UTC](https://discourse.slicer.org/t/mri-fat-quantification-in-liver-muscle-subcutaneous-and-visceral-fat/35419 "2024-04-10T18:40:03Z")

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Hello, I’m currently working on a project involving fat quantification of the liver, thigh muscles, subcutaneous, and visceral fat in canines. The goal is to investigate whether an interventional radiology procedure tar…

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## [Slicer could not load: 3036: linear attenutaion as a scaler volume](https://discourse.slicer.org/t/slicer-could-not-load-3036-linear-attenutaion-as-a-scaler-volume/35418)

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**Author:** [@pchernjavsky](https://discourse.slicer.org/u/pchernjavsky)\
**Replies:** 0\
**Last updated:** [April 10, 2024, 6:39pm UTC](https://discourse.slicer.org/t/slicer-could-not-load-3036-linear-attenutaion-as-a-scaler-volume/35418 "2024-04-10T18:39:53Z")

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Hi, I am trying to create a 3D segmentation from DICOM CT data and am getting the error above. I think it may be due to the exceptionally large amount if data i am trying to load (~50GB). When i load smaller segments of…

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## [Creat smooth model](https://discourse.slicer.org/t/creat-smooth-model/35413)

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**Author:** [@Slogish](https://discourse.slicer.org/u/Slogish)\
**Replies:** 0\
**Last updated:** [April 10, 2024, 4:53pm UTC](https://discourse.slicer.org/t/creat-smooth-model/35413 "2024-04-10T16:53:25Z")

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Hello!Friends! I am trying to measure the max curvature of the part of aorta.Why the max curvature in the Tree centerline curve and the Network curve is so different?Which is accurate? Is there a way to make the cente…

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## [Calculate a surface](https://discourse.slicer.org/t/calculate-a-surface/35351)

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**Author:** [@ILB](https://discourse.slicer.org/u/ILB)\
**Replies:** 7\
**Last updated:** [April 10, 2024, 11:55am UTC](https://discourse.slicer.org/t/calculate-a-surface/35351 "2024-04-10T11:55:03Z")

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Hi! Is there a way in which I can estimate the area of contact between the tumor and the organ? Thank you!

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## [Could not load:1:US \[1\] as a image sequence](https://discourse.slicer.org/t/could-not-loadus-1-as-a-image-sequence/35332)

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**Author:** [@Nancy](https://discourse.slicer.org/u/Nancy)\
**Replies:** 5\
**Last updated:** [April 10, 2024, 8:07am UTC](https://discourse.slicer.org/t/could-not-loadus-1-as-a-image-sequence/35332 "2024-04-10T08:07:16Z")

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I can’t open the ultrasound images in dicom format, what might be the problem?

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## [painting function being clipped](https://discourse.slicer.org/t/painting-function-being-clipped/35374)

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**Author:** [@david](https://discourse.slicer.org/u/david)\
**Replies:** 5\
**Last updated:** [April 10, 2024, 4:12am UTC](https://discourse.slicer.org/t/painting-function-being-clipped/35374 "2024-04-10T04:12:42Z")

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Operating system: Apple Sonoma 14 Slicer version: 5.6.1 Expected behavior: paint tool Actual behavior: paint tool effect being cropped I’m new to 3D Slicer. When I use the paint tool, it is cropping. (Image of examp…

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## [What interpolation does Slicer use for visualisation](https://discourse.slicer.org/t/what-interpolation-does-slicer-use-for-visualisation/35382)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 2\
**Last updated:** [April 10, 2024, 4:01am UTC](https://discourse.slicer.org/t/what-interpolation-does-slicer-use-for-visualisation/35382 "2024-04-10T04:01:29Z")

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What kind of interpolation does Slicer use for visualization of slices? E.g. I have a linear transformation and apply it to a volume - what interpolation method is used for the displayed voxels in the RGY views?

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## [Malformed display coronal and sagital](https://discourse.slicer.org/t/malformed-display-coronal-and-sagital/35404)

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**Author:** [@gypais](https://discourse.slicer.org/u/gypais)\
**Replies:** 1\
**Last updated:** [April 10, 2024, 3:50am UTC](https://discourse.slicer.org/t/malformed-display-coronal-and-sagital/35404 "2024-04-10T03:50:28Z")

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I downloaded the files from my DCIM directory, the axial image is perfect, but the coronal and sagital are just lines. I use the latest version for Mac 5.7, but I have the same problem with the stable version Thanks fo…

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## [Issue with face segmentation using Total Segmentator](https://discourse.slicer.org/t/issue-with-face-segmentation-using-total-segmentator/35377)

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**Author:** [@KSL](https://discourse.slicer.org/u/KSL)\
**Replies:** 1\
**Last updated:** [April 10, 2024, 3:49am UTC](https://discourse.slicer.org/t/issue-with-face-segmentation-using-total-segmentator/35377 "2024-04-10T03:49:33Z")

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Hello friends, I am facing an issue segmenting the face using the face segmentation in Total segmentator module. I have the license but was unable to complete the task. I attach a photo of the output for your information…

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## [RegistrationQA extension not available in slicer v. 5.6.1](https://discourse.slicer.org/t/registrationqa-extension-not-available-in-slicer-v-5-6-1/35397)

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**Author:** [@labixin](https://discourse.slicer.org/u/labixin)\
**Replies:** 1\
**Last updated:** [April 9, 2024, 8:24pm UTC](https://discourse.slicer.org/t/registrationqa-extension-not-available-in-slicer-v-5-6-1/35397 "2024-04-09T20:24:44Z")

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Hello everyone, Is RegistrationQA extension not available in “Extension manager” in the newest stable released version 5.6.1? Is it still under debugging? I remember that it existed in previous version 5.2.2. If not av…

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## [Slicer not loading](https://discourse.slicer.org/t/slicer-not-loading/35392)

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**Author:** [@shady\_elnaggar](https://discourse.slicer.org/u/shady_elnaggar)\
**Replies:** 2\
**Last updated:** [April 9, 2024, 4:24pm UTC](https://discourse.slicer.org/t/slicer-not-loading/35392 "2024-04-09T16:24:57Z")

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Greetings, I have an annoying issue regarding slicer not loading as uploaded screenshot

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## [What configuration is needed for segmentation of jawbones efficiently using CBCT?](https://discourse.slicer.org/t/what-configuration-is-needed-for-segmentation-of-jawbones-efficiently-using-cbct/35399)

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**Author:** [@Jake1](https://discourse.slicer.org/u/Jake1)\
**Replies:** 0\
**Last updated:** [April 9, 2024, 4:24pm UTC](https://discourse.slicer.org/t/what-configuration-is-needed-for-segmentation-of-jawbones-efficiently-using-cbct/35399 "2024-04-09T16:24:42Z")

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Operating system:WIN 10 Slicer version:5.6.1 My computer configuration is: Intel(R) Core™ i5-8400 CPU 8GB of RAM NVIDIA GeForce GTX 1050 graphics card It because my configuration is too low to run AMASS? If so, I w…

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## [Whole body rat or rabbit scans?](https://discourse.slicer.org/t/whole-body-rat-or-rabbit-scans/28728)

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**Author:** [@nagy.attila](https://discourse.slicer.org/u/nagy.attila)\
**Replies:** 8\
**Last updated:** [April 9, 2024, 3:24pm UTC](https://discourse.slicer.org/t/whole-body-rat-or-rabbit-scans/28728 "2024-04-09T15:24:26Z")

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Hi all, I’m looking for the above mentioned data but just can’t seem to find anything useful/freely available online. Since I would mostly need the contour of the body, both CT and MR would do. The main focus would be …

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## [Extract aortic arch arteries from CTA scan](https://discourse.slicer.org/t/extract-aortic-arch-arteries-from-cta-scan/35394)

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**Author:** [@koenterheegde](https://discourse.slicer.org/u/koenterheegde)\
**Replies:** 0\
**Last updated:** [April 9, 2024, 2:03pm UTC](https://discourse.slicer.org/t/extract-aortic-arch-arteries-from-cta-scan/35394 "2024-04-09T14:03:35Z")

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Hey everyone, I’m trying to segment the aorta from a CTA scan. For the most part of the body, this works perfectly fine using thresholding, except for the arteries close to the heart. It basically becomes one big bulge …

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## [Intersection of two models](https://discourse.slicer.org/t/intersection-of-two-models/35366)

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**Author:** [@Noa](https://discourse.slicer.org/u/Noa)\
**Replies:** 3\
**Last updated:** [April 9, 2024, 12:47pm UTC](https://discourse.slicer.org/t/intersection-of-two-models/35366 "2024-04-09T12:47:49Z")

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Hello, I would like to model in 3D the intersection of my two contours: “scinti” and “tep”. I’ve tried to do this with the “segment editor” module and the intersect option, but when I press apply, nothing happens. What …

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## [Basic question about the format of Image2ProbeTransform](https://discourse.slicer.org/t/basic-question-about-the-format-of-image2probetransform/35372)

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**Author:** [@DHK](https://discourse.slicer.org/u/DHK)\
**Replies:** 1\
**Last updated:** [April 9, 2024, 3:18am UTC](https://discourse.slicer.org/t/basic-question-about-the-format-of-image2probetransform/35372 "2024-04-09T03:18:20Z")

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Hello, I have a question about the Image2ProbeTransform that is used in .mha files. As far as I can tell, all of the matrices have to be 4X4 matrices. Please correct me if I’m wrong. I have an ultrasound probe with an …

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## [Segment Statistics - Out of Frame regions](https://discourse.slicer.org/t/segment-statistics-out-of-frame-regions/35157)

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**Author:** [@speled](https://discourse.slicer.org/u/speled)\
**Replies:** 1\
**Last updated:** [April 9, 2024, 3:14am UTC](https://discourse.slicer.org/t/segment-statistics-out-of-frame-regions/35157 "2024-04-09T03:14:11Z")

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Hello, My segment ROI is the whole brain white matter (from a brain atlas). In some cases the scalar volume MRI data is not whole brain (limited # of slices). Will the statistics exclude the ‘Out of Frame’ areas of the …

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## [Which is the latest Slicer version compatible with MacOS Catalina 10.15.7 ?](https://discourse.slicer.org/t/which-is-the-latest-slicer-version-compatible-with-macos-catalina-10-15-7/35373)

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**Author:** [@bga](https://discourse.slicer.org/u/bga)\
**Replies:** 0\
**Last updated:** [April 9, 2024, 1:04am UTC](https://discourse.slicer.org/t/which-is-the-latest-slicer-version-compatible-with-macos-catalina-10-15-7/35373 "2024-04-09T01:04:48Z")

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Hello there, first time here. I have a 2013 iMac and the latest OS compatible is Catalina (10.15.7), which is installed. I have seen the list of Slicer previous releases and I was wondering which of them would be the b…

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## [Taking data from CT scan and printing 3D model](https://discourse.slicer.org/t/taking-data-from-ct-scan-and-printing-3d-model/35356)

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**Author:** [@dantol](https://discourse.slicer.org/u/dantol)\
**Replies:** 1\
**Last updated:** [April 8, 2024, 9:28pm UTC](https://discourse.slicer.org/t/taking-data-from-ct-scan-and-printing-3d-model/35356 "2024-04-08T21:28:06Z")

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Operating system: windows Slicer version: 5.6.1 Expected behavior: setting a ROI and creating a 3d printable model Actual behavior: images are shown in 3 of the 4 windows, but have not been able to create a ROI image …

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