# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=177

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

**Page:** 178

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## [Save overlapping segments in binary labelmaps - Nrrd](https://discourse.slicer.org/t/save-overlapping-segments-in-binary-labelmaps-nrrd/28042)

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**Author:** [@bmendes](https://discourse.slicer.org/u/bmendes)\
**Replies:** 5\
**Last updated:** [February 27, 2023, 4:09pm UTC](https://discourse.slicer.org/t/save-overlapping-segments-in-binary-labelmaps-nrrd/28042 "2023-02-27T16:09:00Z")

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Hello everyone. What a great software Slicer is and what a great community it has. I have been using Slicer for a while for visualization and registration. But currently, I am performing a radiomic study where I believe…

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## [trouble combining .fscv files](https://discourse.slicer.org/t/trouble-combining-fscv-files/28056)

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**Author:** [@sedwards](https://discourse.slicer.org/u/sedwards)\
**Replies:** 3\
**Last updated:** [February 27, 2023, 3:41pm UTC](https://discourse.slicer.org/t/trouble-combining-fscv-files/28056 "2023-02-27T15:41:15Z")

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I have been merging .fcsv files from online sources and my own data. But when I try to analyze the files altogether in GPA, I get an error like: "Error: load file failed: There are 459 landmarks instead of 431. How does …

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## [How to rotate the view of transaxially and sagittal plane?](https://discourse.slicer.org/t/how-to-rotate-the-view-of-transaxially-and-sagittal-plane/28050)

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**Author:** [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Replies:** 2\
**Last updated:** [February 27, 2023, 3:12pm UTC](https://discourse.slicer.org/t/how-to-rotate-the-view-of-transaxially-and-sagittal-plane/28050 "2023-02-27T15:12:45Z")

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Dear all, I want to rotate the view of my plane transaxial and sagittal plane as picture attached (the red arrow). Anyone can help me?

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## [3D Model/MRI Scans of a mouse head?](https://discourse.slicer.org/t/3d-model-mri-scans-of-a-mouse-head/28068)

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**Author:** [@Maksa\_ch](https://discourse.slicer.org/u/Maksa_ch)\
**Replies:** 1\
**Last updated:** [February 27, 2023, 3:00pm UTC](https://discourse.slicer.org/t/3d-model-mri-scans-of-a-mouse-head/28068 "2023-02-27T15:00:17Z")

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Dear all! It is a far fetched question but any help is appreciated! I am an architect from Sweden that is quite interested in 3D modelling and lately i have been interested in 3D Slicer. I Just want to see and explore m…

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## [Terminology of using Segment Editor](https://discourse.slicer.org/t/terminology-of-using-segment-editor/28067)

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**Author:** [@Tahara](https://discourse.slicer.org/u/Tahara)\
**Replies:** 0\
**Last updated:** [February 23, 2023, 5:42am UTC](https://discourse.slicer.org/t/terminology-of-using-segment-editor/28067 "2023-02-23T05:42:24Z")

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Hello, May I get your opinion about the terminology of using segment editor. When we used the segment editor, we filled the color in the area that we want to segment in each slice. In those case, could you pls explain a…

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## [VMTK Centerline Computation error](https://discourse.slicer.org/t/vmtk-centerline-computation-error/12789)

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**Author:** [@janneke\_slicer](https://discourse.slicer.org/u/janneke_slicer)\
**Replies:** 5\
**Last updated:** [December 21, 2021, 7:18am UTC](https://discourse.slicer.org/t/vmtk-centerline-computation-error/12789 "2021-12-21T07:18:18Z")

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Hello, I want to use VMTK Centerline Computation. However, I get the following error after using the Preview button (it isn’t even possible to use the Start button): ‘local variable ‘vtkvmtkComputationalGeometry’ refer…

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## [How to determine the center point coordinates of the modeling area?](https://discourse.slicer.org/t/how-to-determine-the-center-point-coordinates-of-the-modeling-area/22205)

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**Author:** [@zhuyingxinxs](https://discourse.slicer.org/u/zhuyingxinxs)\
**Replies:** 4\
**Last updated:** [February 25, 2023, 5:25pm UTC](https://discourse.slicer.org/t/how-to-determine-the-center-point-coordinates-of-the-modeling-area/22205 "2023-02-25T17:25:36Z")

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Can Slicer read the coordinates of the center point of the region that he modeled? Let’s say I modeled the kidney ,Can I read what the RAS coordinates are for the center of the kidney region?

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## [ChatGPT denotes 3D Slicer FDA-cleared?](https://discourse.slicer.org/t/chatgpt-denotes-3d-slicer-fda-cleared/27999)

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**Author:** [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Replies:** 13\
**Last updated:** [February 25, 2023, 1:31am UTC](https://discourse.slicer.org/t/chatgpt-denotes-3d-slicer-fda-cleared/27999 "2023-02-25T01:31:18Z")

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I had the following conversation with ChatGPT. Could you guys comment on that? … Me: Is 3D Slicer really FDA-cleared? ChatGPT: Yes, 3D Slicer is FDA-cleared for certain clinical applications. In August 2019, 3D Sli…

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## [Image registration evaluation question](https://discourse.slicer.org/t/image-registration-evaluation-question/28011)

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**Author:** [@Young\_Wang](https://discourse.slicer.org/u/Young_Wang)\
**Replies:** 6\
**Last updated:** [February 24, 2023, 8:43pm UTC](https://discourse.slicer.org/t/image-registration-evaluation-question/28011 "2023-02-24T20:43:50Z")

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Hi everyone, I’m working on an image registration-related project. I want to evaluate its performance between different 3-4 final registration results (fused image) regarding readability. The approach I’m taking is to …

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## [Fcal Lego phantom: configuration file and 3D model](https://discourse.slicer.org/t/fcal-lego-phantom-configuration-file-and-3d-model/28037)

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**Author:** [@Qianqian\_Cai](https://discourse.slicer.org/u/Qianqian_Cai)\
**Replies:** 3\
**Last updated:** [February 24, 2023, 7:38pm UTC](https://discourse.slicer.org/t/fcal-lego-phantom-configuration-file-and-3d-model/28037 "2023-02-24T19:38:40Z")

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Hi! I am following the instruction to perform freehand 3D ultrasound calibration using the Lego phantom. It is stated in the pdf tutorial that the 3D model and XML file of the lego phantom is provided. Plus version: Plu…

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## [How do I know that measurement tools (markups) give me the correct value?](https://discourse.slicer.org/t/how-do-i-know-that-measurement-tools-markups-give-me-the-correct-value/28018)

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**Author:** [@rossanas](https://discourse.slicer.org/u/rossanas)\
**Replies:** 3\
**Last updated:** [February 24, 2023, 3:35pm UTC](https://discourse.slicer.org/t/how-do-i-know-that-measurement-tools-markups-give-me-the-correct-value/28018 "2023-02-24T15:35:39Z")

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Hello, I am a clinical scientist in the process to exploring 3DSlicer for micro-CT images analysis. I am doing quite some quantitive measurements using the Markup Module and I would like to get info as to know the accur…

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## [T2-mapping error](https://discourse.slicer.org/t/t2-mapping-error/28035)

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**Author:** [@hanan](https://discourse.slicer.org/u/hanan)\
**Replies:** 0\
**Last updated:** [February 24, 2023, 2:45pm UTC](https://discourse.slicer.org/t/t2-mapping-error/28035 "2023-02-24T14:45:22Z")

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Dear Slicer community, I have been using T2 mapping extension for phantom data acquired on a preclinical Bruker 7T PET-MR (MGE sequence with 30 echo times) but it didn’t work. The problem is I have a multi-slice image a…

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## [extensions installation](https://discourse.slicer.org/t/extensions-installation/28021)

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**Author:** [@makhlouf1](https://discourse.slicer.org/u/makhlouf1)\
**Replies:** 2\
**Last updated:** [February 24, 2023, 12:53pm UTC](https://discourse.slicer.org/t/extensions-installation/28021 "2023-02-24T12:53:01Z")

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i installed the slicer prostate extension and i can’t find it in the module list drop down menu

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## [Slicer often crashes when running with python-script in loading](https://discourse.slicer.org/t/slicer-often-crashes-when-running-with-python-script-in-loading/23719)

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**Author:** [@gzt036](https://discourse.slicer.org/u/gzt036)\
**Replies:** 11\
**Last updated:** [February 23, 2023, 10:44pm UTC](https://discourse.slicer.org/t/slicer-often-crashes-when-running-with-python-script-in-loading/23719 "2023-02-23T22:44:53Z")

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Operating system: windows Slicer version: 5.0.2 or 5.1.0 Expected behavior: stable Actual behavior: crashes almost always. import os import sys from DICOMLib import DICOMUtils import DICOMScalarVolumePlugin def imp…

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## [Reload and Test deletes data](https://discourse.slicer.org/t/reload-and-test-deletes-data/28017)

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**Author:** [@rhodesdante](https://discourse.slicer.org/u/rhodesdante)\
**Replies:** 7\
**Last updated:** [February 23, 2023, 10:12pm UTC](https://discourse.slicer.org/t/reload-and-test-deletes-data/28017 "2023-02-23T22:12:23Z")

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Is there a way to recover data that is removed when one clicks on the “Reload and Test” button on some modules? I have accidentally pressed this button once or twice recently on different modules and it is frustrating to…

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## [Crop volume with specified ROI e.g. 5mm x 5mm x 5mm](https://discourse.slicer.org/t/crop-volume-with-specified-roi-e-g-5mm-x-5mm-x-5mm/28012)

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**Author:** [@Young\_Wang](https://discourse.slicer.org/u/Young_Wang)\
**Replies:** 2\
**Last updated:** [February 23, 2023, 8:27pm UTC](https://discourse.slicer.org/t/crop-volume-with-specified-roi-e-g-5mm-x-5mm-x-5mm/28012 "2023-02-23T20:27:08Z")

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Hi everyone, if there is an easy way to crop volume into a defined ROI, e.g. 5mm x 5mm x 5mm? The current setting allows for dragging the ROI boundaries. I wonder if we can specify the volume we need and drag the ROI loc…

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## [Centerline Parameters Export](https://discourse.slicer.org/t/centerline-parameters-export/28020)

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**Author:** [@Erika286](https://discourse.slicer.org/u/Erika286)\
**Replies:** 0\
**Last updated:** [February 23, 2023, 6:43pm UTC](https://discourse.slicer.org/t/centerline-parameters-export/28020 "2023-02-23T18:43:44Z")

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Operating system: Windows 11 Slicer version:5.0.3 Expected behavior: export in .cvs format parameters (radius, curvature) about all the xyz coordinates of each centerline’s branch. Actual behavior:export in .cvs forma…

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## [New Dynamic Modeler Tool: Select by Points](https://discourse.slicer.org/t/new-dynamic-modeler-tool-select-by-points/22165)

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**Author:** [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Replies:** 19\
**Last updated:** [February 23, 2023, 3:58pm UTC](https://discourse.slicer.org/t/new-dynamic-modeler-tool-select-by-points/22165 "2023-02-23T15:58:31Z")

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Select by points tool is available on the Dynamic Modeler module since end of October 2021 Slicer Preview Release This tools allows you to create 2 types of output models from an input model, a fiducial li…

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## [Running a python module in the background](https://discourse.slicer.org/t/running-a-python-module-in-the-background/16168)

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**Author:** [@marianaslicer](https://discourse.slicer.org/u/marianaslicer)\
**Replies:** 8\
**Last updated:** [February 23, 2023, 3:02pm UTC](https://discourse.slicer.org/t/running-a-python-module-in-the-background/16168 "2023-02-23T15:02:26Z")

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Hi everyone, I’m using the latest 3D Slicer version (4.13.20201207) and I have been working on a python scripted module. The module requires two inputs (by the user) and there is a button to run the algorithm. I would l…

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## [Transform module rotation issue](https://discourse.slicer.org/t/transform-module-rotation-issue/27996)

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**Author:** [@Young\_Wang](https://discourse.slicer.org/u/Young_Wang)\
**Replies:** 3\
**Last updated:** [February 23, 2023, 2:47pm UTC](https://discourse.slicer.org/t/transform-module-rotation-issue/27996 "2023-02-23T14:47:00Z")

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Hi everyone, I’m working on aligning two volumes using the transform module, and I noticed something funky. I wonder if anyone else has encountered the same issue before. I got a rough alignment done with simple transla…

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## [Conver batch of nrrd files to DICOM](https://discourse.slicer.org/t/conver-batch-of-nrrd-files-to-dicom/27992)

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**Author:** [@dvdm1](https://discourse.slicer.org/u/dvdm1)\
**Replies:** 1\
**Last updated:** [February 23, 2023, 9:42am UTC](https://discourse.slicer.org/t/conver-batch-of-nrrd-files-to-dicom/27992 "2023-02-23T09:42:06Z")

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Hi, I want to convert a batch of a few hundred scans from nrrd to DICOM. I have been reading about using the create a dicom series in the CLI (including this topic: Convert NRRD to DICOM), but I’m still unsure how to us…

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## [Error "Parameter named "regionSegmentID" cannot be found for effect "Wrap Solidify""](https://discourse.slicer.org/t/error-parameter-named-regionsegmentid-cannot-be-found-for-effect-wrap-solidify/28002)

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**Author:** [@laurabc](https://discourse.slicer.org/u/laurabc)\
**Replies:** 0\
**Last updated:** [February 23, 2023, 8:46am UTC](https://discourse.slicer.org/t/error-parameter-named-regionsegmentid-cannot-be-found-for-effect-wrap-solidify/28002 "2023-02-23T08:46:34Z")

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Hello, I am using Wrap and Solidify from a python script, and I get the following error: \[Qt\] QString qSlicerSegmentEditorAbstractEffect::parameter(QString) : Parameter named “regionSegmentID” cannot be found for effec…

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## [Sdk for 3d slicer](https://discourse.slicer.org/t/sdk-for-3d-slicer/27970)

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**Author:** [@Anjalimukundan](https://discourse.slicer.org/u/Anjalimukundan)\
**Replies:** 2\
**Last updated:** [February 23, 2023, 7:15am UTC](https://discourse.slicer.org/t/sdk-for-3d-slicer/27970 "2023-02-23T07:15:28Z")

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hi can anyone give me link from were I can download SDK of 3D slicer

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## [Curved line profile of a volume](https://discourse.slicer.org/t/curved-line-profile-of-a-volume/26606)

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**Author:** [@Tahara](https://discourse.slicer.org/u/Tahara)\
**Replies:** 3\
**Last updated:** [December 8, 2022, 3:16am UTC](https://discourse.slicer.org/t/curved-line-profile-of-a-volume/26606 "2022-12-08T03:16:13Z")

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Thank you. I’m looking to get a curved line profile from a volume, however it seems that the Line Profile tool does not include in the current software and I found some answers to get line profile, but, I could not get …

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## [Dicom files exported from mimics do not work properly with 3Dslicer](https://discourse.slicer.org/t/dicom-files-exported-from-mimics-do-not-work-properly-with-3dslicer/27994)

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**Author:** [@spiderman](https://discourse.slicer.org/u/spiderman)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/dicom-files-exported-from-mimics-do-not-work-properly-with-3dslicer/27994 "2023-02-22T22:30:35Z")

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Operating system:win10 Windows Feature Experience Pack 120.2212.4190.0 Slicer version:5.2.1、5.3.0 I first trimmed the dicom file with mimics24 and exported a new dicom file, which can be opened and used in both mimics …

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## [How to define "Experimantal file slice position" value in the film dosimetry analysis?](https://discourse.slicer.org/t/how-to-define-experimantal-file-slice-position-value-in-the-film-dosimetry-analysis/27993)

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**Author:** [@abcxyzooo](https://discourse.slicer.org/u/abcxyzooo)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/how-to-define-experimantal-file-slice-position-value-in-the-film-dosimetry-analysis/27993 "2023-02-22T22:30:32Z")

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Dear all: I am new to the 3D slicer. The purpose of using 3D slicer is to do the gamma analysis using Film Dosimetry Analysis . I have created the film calibration curve. But I am confused in defining “Experimantal fi…

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## [Save IGTLink 3D coordinates](https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991)

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**Author:** [@Hugo\_Angulo](https://discourse.slicer.org/u/Hugo_Angulo)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991 "2023-02-22T22:30:25Z")

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Hi there, I am currently simulating that I receive some coordinates through the usage of the TrackerSim binary file that I found in an old page in the website. Now, I was able to mimic that this is a remote machine that…

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## [How to properly create a volumeNode after registration using SITK ?](https://discourse.slicer.org/t/how-to-properly-create-a-volumenode-after-registration-using-sitk/27989)

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**Author:** [@Mwoon](https://discourse.slicer.org/u/Mwoon)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/how-to-properly-create-a-volumenode-after-registration-using-sitk/27989 "2023-02-22T22:30:09Z")

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The question is basic, but I don’t know what is failing. Here is the code : resampled = sitk.Resample(moving\_image, fixed\_image, final\_transform, sitk.sitkLinear, 0.0, moving\_image.GetPixelID()) volume = self.sitk\_to\_v…

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## [Panoramic thickness repesentation](https://discourse.slicer.org/t/panoramic-thickness-repesentation/27974)

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**Author:** [@Ackta](https://discourse.slicer.org/u/Ackta)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 11:22am UTC](https://discourse.slicer.org/t/panoramic-thickness-repesentation/27974 "2023-02-22T11:22:35Z")

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Hi, i can find the way to transform a slice like this in to a thickness image like this i have found this in old tutorial about slicerpano,but i can find on github the new realease,and some interesting function ar…

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## [Creating new point on existing line](https://discourse.slicer.org/t/creating-new-point-on-existing-line/27953)

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**Author:** [@eliagre](https://discourse.slicer.org/u/eliagre)\
**Replies:** 5\
**Last updated:** [February 22, 2023, 11:10am UTC](https://discourse.slicer.org/t/creating-new-point-on-existing-line/27953 "2023-02-22T11:10:53Z")

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Hello, My question is: Is there a way to define a new point on an existing line, based on the distance from one of the two points defining the line, preferably in percentages? The situation: I want to crop a model in a…

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