# Community

**URL:** https://discourse.slicer.org/c/community/12.md?no_subcategories=false&page=18

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

**Page:** 19

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## [\[Na-mic-project-week\] Project Week 39 registration - online and in-person](https://discourse.slicer.org/t/na-mic-project-week-project-week-39-registration-online-and-in-person/29495)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [May 16, 2023, 7:38pm UTC](https://discourse.slicer.org/t/na-mic-project-week-project-week-39-registration-online-and-in-person/29495 "2023-05-16T19:38:19Z")

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Dear Project Week Community, We have now opened registration for Project Week 39 for both in-person and remote participants. Both categories of participants need to register using the following form: This form allows…

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## [\[Na-mic-project-week\] Reminder: next PW39 preparation meeting - Tomorrow (Tuesday May 16th)](https://discourse.slicer.org/t/na-mic-project-week-reminder-next-pw39-preparation-meeting-tomorrow-tuesday-may-16th/29478)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [May 15, 2023, 5:03pm UTC](https://discourse.slicer.org/t/na-mic-project-week-reminder-next-pw39-preparation-meeting-tomorrow-tuesday-may-16th/29478 "2023-05-15T17:03:05Z")

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Dear Project Week community, The next preparation meetings for project week 39 will take place tomorrow, May 16th, 2023 (10 am Boston time, EDT) on Zoom. You can join using the following link: ATTENTION! : the zoom l…

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## [2023.05.16 Weekly Meeting](https://discourse.slicer.org/t/2023-05-16-weekly-meeting/29433)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [May 12, 2023, 9:02pm UTC](https://discourse.slicer.org/t/2023-05-16-weekly-meeting/29433 "2023-05-12T21:02:25Z")

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Next Tuesday, we will be having our next weekly hangout at 11:00 AM ET until 12:00PM ET AFTER the Project Week Meeting. We will be using the same Zoom meeting as the Project Week call. Agenda: Extension dashboard…

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## [Preparation meeting for project week 39](https://discourse.slicer.org/t/preparation-meeting-for-project-week-39/29432)

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**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 0\
**Last updated:** [May 12, 2023, 8:04pm UTC](https://discourse.slicer.org/t/preparation-meeting-for-project-week-39/29432 "2023-05-12T20:04:38Z")

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Dear Project Week community, The next preparation meetings for project week 39 will take place next Tuesday, May 16th, 2023 (10 am Boston time, EDT) on Zoom. You can join using the following link: https://etsmtl.zoom.…

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## [Forcing full feature set extraction](https://discourse.slicer.org/t/forcing-full-feature-set-extraction/29405)

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**Author:** [@enamdar](https://discourse.slicer.org/u/enamdar)\
**Replies:** 0\
**Last updated:** [May 10, 2023, 6:46pm UTC](https://discourse.slicer.org/t/forcing-full-feature-set-extraction/29405 "2023-05-10T18:46:18Z")

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Hello everyone, I wonder how 2D features are extracted when a 3D ROI is fed and enable.all is used for feature extraction.

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## [Regarding active scalars](https://discourse.slicer.org/t/regarding-active-scalars/29244)

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**Author:** [@Mudrika](https://discourse.slicer.org/u/Mudrika)\
**Replies:** 1\
**Last updated:** [May 10, 2023, 4:36am UTC](https://discourse.slicer.org/t/regarding-active-scalars/29244 "2023-05-10T04:36:40Z")

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Hello! Can anyone help me with how can I monitor what active scalars can be calculated for the centerline model in VMTK extension. I am getting only 3 options, but my interest lies in the calculation of curvature, torsi…

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## [\[Na-mic-project-week\] Next PW39 Prep meeting - Tuesday May 9th - 10am EST](https://discourse.slicer.org/t/na-mic-project-week-next-pw39-prep-meeting-tuesday-may-9th-10am-est/29356)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [May 8, 2023, 2:07pm UTC](https://discourse.slicer.org/t/na-mic-project-week-next-pw39-prep-meeting-tuesday-may-9th-10am-est/29356 "2023-05-08T14:07:19Z")

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Dear Project Week community, The next preparation meetings for project week 39 will take place 2023-05-09T14:00:00Z (UTC) on Zoom. You can join using the following link: https://etsmtl.zoom.us/j/88039770641?pwd=L3JnRF…

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## [\[Na-mic-project-week\] Project Week 39 preparation meetings start this Tuesday (May 2nd)](https://discourse.slicer.org/t/na-mic-project-week-project-week-39-preparation-meetings-start-this-tuesday-may-2nd/29229)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 7\
**Last updated:** [May 8, 2023, 3:47pm UTC](https://discourse.slicer.org/t/na-mic-project-week-project-week-39-preparation-meetings-start-this-tuesday-may-2nd/29229 "2023-05-08T15:47:07Z")

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Dear Project Week community, We are happy to announce the beginning of preparation meetings for the next project week (June 12-16, 2023). Weekly meetings will start this Tuesday, May 2nd, 2023 (10 am Boston time, EDT) o…

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## [2023.05.09 Weekly Meeting](https://discourse.slicer.org/t/2023-05-09-weekly-meeting/29357)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [May 8, 2023, 2:09pm UTC](https://discourse.slicer.org/t/2023-05-09-weekly-meeting/29357 "2023-05-08T14:09:09Z")

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Next Tuesday, we will be having our next weekly hangout at 11:00 AM ET until 12:00PMM ET AFTER the Project Week Meeting. We will be using the same Zoom meeting as the Project Week call Anyone is welcome to join to as…

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## [VMTK automatic cross-sectional analysis](https://discourse.slicer.org/t/vmtk-automatic-cross-sectional-analysis/28380)

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**Author:** [@SlicerPascal](https://discourse.slicer.org/u/SlicerPascal)\
**Replies:** 1\
**Last updated:** [May 7, 2023, 5:04pm UTC](https://discourse.slicer.org/t/vmtk-automatic-cross-sectional-analysis/28380 "2023-05-07T17:04:23Z")

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Operating system: Windows Slicer version: 5.2.1 I am using slicer and I have extracted the centerline network for an arterial model. Is it possible to automatically perform cross-sectional analysis for each of the cent…

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## [Feature extractor](https://discourse.slicer.org/t/feature-extractor/29320)

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**Author:** [@Benji](https://discourse.slicer.org/u/Benji)\
**Replies:** 0\
**Last updated:** [May 6, 2023, 6:37pm UTC](https://discourse.slicer.org/t/feature-extractor/29320 "2023-05-06T18:37:35Z")

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Dear community, I have little experience in coding and I am using radiomics for the first time. I tried to find the solution in the documentation, websearch etc. but was not able to. import radiomics from radiomics imp…

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## [Shape analysis by SPHARM-PDM](https://discourse.slicer.org/t/shape-analysis-by-spharm-pdm/1708)

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**Author:** [@sodaGH](https://discourse.slicer.org/u/sodaGH)\
**Replies:** 8\
**Last updated:** [May 2, 2023, 7:17pm UTC](https://discourse.slicer.org/t/shape-analysis-by-spharm-pdm/1708 "2023-05-02T19:17:43Z")

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Operating system: windows7\_64 Slicer version: 4.4.0 Expected behavior: I want to do the shape analysis by SPHARM-PDM Actual behavior: I have apply the shape analysis module, when I load the output.csv file in ShapeP…

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## [Mac OS And AI segmentation with CIP:](https://discourse.slicer.org/t/mac-os-and-ai-segmentation-with-cip/29232)

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**Author:** [@jack\_richecoeur](https://discourse.slicer.org/u/jack_richecoeur)\
**Replies:** 2\
**Last updated:** [May 1, 2023, 5:07pm UTC](https://discourse.slicer.org/t/mac-os-and-ai-segmentation-with-cip/29232 "2023-05-01T17:07:09Z")

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Operating system:Mac os Ventura 24Giga RAM \*radeon Pro 5300 4 giga Slicer version:5.2.2 Expected behavior: AI lung segmentation. Actual behavior: does not work, with messages Error Pytorch CUDA not found ( OK because …

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## [Geometric indices](https://discourse.slicer.org/t/geometric-indices/29191)

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**Author:** [@Mudrika](https://discourse.slicer.org/u/Mudrika)\
**Replies:** 0\
**Last updated:** [April 28, 2023, 4:23pm UTC](https://discourse.slicer.org/t/geometric-indices/29191 "2023-04-28T16:23:45Z")

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Hi! Can anyone help me with the active scalars that are available for calculation in the centreline model? For the first model, I tried, all parameters were visible (torsion, tortuosity, length and radius) but afterward…

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## [Curvature, torsion, tortuosity computation algorithms in VMTK](https://discourse.slicer.org/t/curvature-torsion-tortuosity-computation-algorithms-in-vmtk/29186)

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**Author:** [@Mudrika](https://discourse.slicer.org/u/Mudrika)\
**Replies:** 2\
**Last updated:** [April 28, 2023, 2:55pm UTC](https://discourse.slicer.org/t/curvature-torsion-tortuosity-computation-algorithms-in-vmtk/29186 "2023-04-28T14:55:34Z")

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Hello! I am trying to calculate the geometric indices such as curvature, torsion and tortuosity from the extracted centrelines in 3D slicer by using VMTK extension. Can anyone please tell me what are the mathematical de…

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## [2023.04.25 Weekly Meeting](https://discourse.slicer.org/t/2023-04-25-weekly-meeting/29034)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [April 20, 2023, 10:03pm UTC](https://discourse.slicer.org/t/2023-04-25-weekly-meeting/29034 "2023-04-20T22:03:50Z")

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Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Extension dashboard …

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## [Valid ROI for 2D image](https://discourse.slicer.org/t/valid-roi-for-2d-image/29094)

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**Author:** [@Maka\_Paka](https://discourse.slicer.org/u/Maka_Paka)\
**Replies:** 0\
**Last updated:** [April 24, 2023, 5:47pm UTC](https://discourse.slicer.org/t/valid-roi-for-2d-image/29094 "2023-04-24T17:47:12Z")

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Hello team, I have a problem with loading 2D .jpg image and automatically segmented 2D .png skin lesion mask using AI. Size of the image is (128, 128, 3) and mask is (128, 128, 1) but during extractor.execute I have foll…

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## [Beginner issues segmenting brain to stl for 3d print](https://discourse.slicer.org/t/beginner-issues-segmenting-brain-to-stl-for-3d-print/29040)

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**Author:** [@H\_Smith](https://discourse.slicer.org/u/H_Smith)\
**Replies:** 1\
**Last updated:** [April 23, 2023, 7:54pm UTC](https://discourse.slicer.org/t/beginner-issues-segmenting-brain-to-stl-for-3d-print/29040 "2023-04-23T19:54:00Z")

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Hi! My aim is to take MRI brain scan data to an .stl for 3D print, for a student I’m working with. I have 3 questions, hopefully pretty basic! :slight\_smile: Organs vs bone I created an .stl very successfully for a …

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## [How to change branch centerline](https://discourse.slicer.org/t/how-to-change-branch-centerline/18746)

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**Author:** [@junqiangchen](https://discourse.slicer.org/u/junqiangchen)\
**Replies:** 6\
**Last updated:** [April 18, 2023, 5:55pm UTC](https://discourse.slicer.org/t/how-to-change-branch-centerline/18746 "2023-04-18T17:55:08Z")

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hi,i have extract the centerline,but i find centerline bifurcation is not right.just like this,i want modify centerline bifurcation from fig 1 to fig2,is there any function can achieve?

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## [Covariate Significance testing - Pvalues always equals to 1](https://discourse.slicer.org/t/covariate-significance-testing-pvalues-always-equals-to-1/28975)

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**Author:** [@Giulia\_Baldassari](https://discourse.slicer.org/u/Giulia_Baldassari)\
**Replies:** 0\
**Last updated:** [April 17, 2023, 5:52pm UTC](https://discourse.slicer.org/t/covariate-significance-testing-pvalues-always-equals-to-1/28975 "2023-04-17T17:52:46Z")

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Dear experts, I used SlicerSalt software to carry out a shape analysis but whichever database I used and for different substructures such as caudate, hippocampus and amygdala the pvalue was always non-significant. In pa…

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## [DTI:Help for calculating diffusion tensor parameters](https://discourse.slicer.org/t/dti-help-for-calculating-diffusion-tensor-parameters/28917)

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**Author:** [@li\_rui](https://discourse.slicer.org/u/li_rui)\
**Replies:** 0\
**Last updated:** [April 14, 2023, 12:59pm UTC](https://discourse.slicer.org/t/dti-help-for-calculating-diffusion-tensor-parameters/28917 "2023-04-14T12:59:45Z")

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How to use b\_ Matrix and DWI to calculate DTI parameters? My data only provides one 21 × B of 6\_ Matrix, bval and bvec files were not provided. May I ask if there is any way to convert b\_ Is matrix converted to bval and …

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## [2023.04.18 Weekly Meeting](https://discourse.slicer.org/t/2023-04-18-weekly-meeting/28892)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [April 13, 2023, 8:31pm UTC](https://discourse.slicer.org/t/2023-04-18-weekly-meeting/28892 "2023-04-13T20:31:31Z")

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Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Extension dashboard …

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## [How to export files that pyradiomics need?](https://discourse.slicer.org/t/how-to-export-files-that-pyradiomics-need/28845)

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**Author:** [@onkaparinga](https://discourse.slicer.org/u/onkaparinga)\
**Replies:** 5\
**Last updated:** [April 12, 2023, 1:20pm UTC](https://discourse.slicer.org/t/how-to-export-files-that-pyradiomics-need/28845 "2023-04-12T13:20:42Z")

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As pyradiomics examples show, it requires two files: a image file and a label file. Both files are .nrrd format. What are the steps that 3D slicer export these files after drawing ROI ?

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## [Title: 2023.04.11 Weekly Meeting](https://discourse.slicer.org/t/title-2023-04-11-weekly-meeting/28786)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [April 6, 2023, 10:08pm UTC](https://discourse.slicer.org/t/title-2023-04-11-weekly-meeting/28786 "2023-04-06T22:08:36Z")

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Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Extension dashboard …

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## [\[Na-mic-project-week\] Project Week 39 - In-person registration + hotel booking](https://discourse.slicer.org/t/na-mic-project-week-project-week-39-in-person-registration-hotel-booking/28704)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [March 31, 2023, 8:18pm UTC](https://discourse.slicer.org/t/na-mic-project-week-project-week-39-in-person-registration-hotel-booking/28704 "2023-03-31T20:18:09Z")

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Dear Project Week community, We can’t wait to welcome you in Montreal for the 39th edition next June (12-16). The registration page for in-person attendees is already up. It can be reached from the main PW 39 webpage or…

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## [Normalization before feature extraction for Radiomics](https://discourse.slicer.org/t/normalization-before-feature-extraction-for-radiomics/14891)

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**Author:** [@hsotoudeh1](https://discourse.slicer.org/u/hsotoudeh1)\
**Replies:** 3\
**Last updated:** [March 31, 2023, 6:43pm UTC](https://discourse.slicer.org/t/normalization-before-feature-extraction-for-radiomics/14891 "2023-03-31T18:43:31Z")

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Hello; I have one question about Normalization before feature extraction for Radiomics. I know that the images from different scanners must be normalized before feature extraction. How can I do it in 3D Slicer? I see f…

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## [Radiomics features for two combined structures](https://discourse.slicer.org/t/radiomics-features-for-two-combined-structures/28691)

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**Author:** [@Jimmy](https://discourse.slicer.org/u/Jimmy)\
**Replies:** 0\
**Last updated:** [March 31, 2023, 2:42am UTC](https://discourse.slicer.org/t/radiomics-features-for-two-combined-structures/28691 "2023-03-31T02:42:10Z")

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Hi, I am using Pyradiomics to extract features from whole body PET/CT, and I have a question about combing two structures. For example, I separate the whole/body structure into two parts: upper body and lower body, and …

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## [2023.04.04 Weekly Meeting](https://discourse.slicer.org/t/2023-04-04-weekly-meeting/28688)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [March 30, 2023, 9:18pm UTC](https://discourse.slicer.org/t/2023-04-04-weekly-meeting/28688 "2023-03-30T21:18:30Z")

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Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Extension dashboard …

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## [Open-Source Ultrasound Trainer using 3DSlicer](https://discourse.slicer.org/t/open-source-ultrasound-trainer-using-3dslicer/28685)

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**Author:** [@Ryan\_Morrison](https://discourse.slicer.org/u/Ryan_Morrison)\
**Replies:** 2\
**Last updated:** [March 30, 2023, 7:54pm UTC](https://discourse.slicer.org/t/open-source-ultrasound-trainer-using-3dslicer/28685 "2023-03-30T19:54:27Z")

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I wanted to thank Andras Lasso for his help during the development of an open-source ultrasound trainer (OSUT) for medical professionals learning ultrasound. The ultrasound trainer takes tracking data from many off-the-s…

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## [2023.03.28 Weekly Meeting](https://discourse.slicer.org/t/2023-03-28-weekly-meeting/28503)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [March 29, 2023, 3:56am UTC](https://discourse.slicer.org/t/2023-03-28-weekly-meeting/28503 "2023-03-29T03:56:13Z")

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Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Extension reviews - …

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