# Radiomics

**URL:** https://discourse.slicer.org/c/community/radiomics/23.md?page=1

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

**Page:** 2

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## [How to do image normalization in Radiomics](https://discourse.slicer.org/t/how-to-do-image-normalization-in-radiomics/12689)

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**Author:** [@danceward](https://discourse.slicer.org/u/danceward)\
**Replies:** 10\
**Last updated:** [November 26, 2023, 1:59am UTC](https://discourse.slicer.org/t/how-to-do-image-normalization-in-radiomics/12689 "2023-11-26T01:59:08Z")

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Hello I am doing some work about texture analysis using Radiomics package and how can I do image normalization before texture analysis? Thanks

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## [Subject: Processing Character Features in the shape features ](https://discourse.slicer.org/t/subject-processing-character-features-in-the-shape-features/32933)

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**Author:** [@curtis\_sohn](https://discourse.slicer.org/u/curtis_sohn)\
**Replies:** 1\
**Last updated:** [November 22, 2023, 8:04pm UTC](https://discourse.slicer.org/t/subject-processing-character-features-in-the-shape-features/32933 "2023-11-22T20:04:47Z")

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Dear Community, I am working on a project to predict the IDH status in glioma using features extracted via Pyradiomics. I’ve encountered a challenge with certain shape features that are extracted as character strings or…

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## [Feature: Custom library to extract radiomic features at specific angle](https://discourse.slicer.org/t/feature-custom-library-to-extract-radiomic-features-at-specific-angle/32819)

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**Author:** [@Mohanad\_Arafe](https://discourse.slicer.org/u/Mohanad_Arafe)\
**Replies:** 0\
**Last updated:** [November 14, 2023, 8:20pm UTC](https://discourse.slicer.org/t/feature-custom-library-to-extract-radiomic-features-at-specific-angle/32819 "2023-11-14T20:20:49Z")

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Hello everyone, In my research, I am using PyRadiomics to extract radiomic features at specific angles (2D for now) & distance. Therefore, I implemented a small library that helps you do so. Here is an example of how to…

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## [Uniformity always is 1](https://discourse.slicer.org/t/uniformity-always-is-1/32647)

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**Author:** [@Luis\_Reyes](https://discourse.slicer.org/u/Luis_Reyes)\
**Replies:** 0\
**Last updated:** [November 7, 2023, 6:24pm UTC](https://discourse.slicer.org/t/uniformity-always-is-1/32647 "2023-11-07T18:24:42Z")

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Hello, I am validating each of the first-order features with my calculations, and I have noticed that the Uniformity feature always gives me a value of 1. I have even used the ISBI computational model, and it also gives …

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## [Radiomic module not opening](https://discourse.slicer.org/t/radiomic-module-not-opening/32615)

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**Author:** [@Sefa\_Waqarua](https://discourse.slicer.org/u/Sefa_Waqarua)\
**Replies:** 1\
**Last updated:** [November 6, 2023, 3:56pm UTC](https://discourse.slicer.org/t/radiomic-module-not-opening/32615 "2023-11-06T15:56:45Z")

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Hello. I can’t open Radiomic module after segmentation of tumor. I tried with all the latest versions (version 5) of Slicer but not solved. I am using Window 10. Need assistance pls.

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## [shape（2D） 3D Slicer  radiomics  slicer radiomics](https://discourse.slicer.org/t/shape-2d-3d-slicer-radiomics-slicer-radiomics/32303)

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**Author:** [@wwww](https://discourse.slicer.org/u/wwww)\
**Replies:** 0\
**Last updated:** [October 18, 2023, 3:48pm UTC](https://discourse.slicer.org/t/shape-2d-3d-slicer-radiomics-slicer-radiomics/32303 "2023-10-18T15:48:18Z")

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After pouring 2D ultrasound images into 3d slicer, segmentation was performed. Enter the radiomics module and enter the volume that cannot be found. Looking for the answer on the Internet, some people can find the volum…

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## [Extract surface of a volumetric region of interest](https://discourse.slicer.org/t/extract-surface-of-a-volumetric-region-of-interest/22196)

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**Author:** [@RICHARD\_HERNAN\_VALLE](https://discourse.slicer.org/u/RICHARD_HERNAN_VALLE)\
**Replies:** 1\
**Last updated:** [October 10, 2023, 7:37am UTC](https://discourse.slicer.org/t/extract-surface-of-a-volumetric-region-of-interest/22196 "2023-10-10T07:37:02Z")

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How can I extract surfaces from a segmented volumetric region of interest in code to extract radiomics from different slices of a volume?

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## [I can not find the "Slicer Radiomics" in 3D Slicer in my mac](https://discourse.slicer.org/t/i-can-not-find-the-slicer-radiomics-in-3d-slicer-in-my-mac/31589)

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**Author:** [@Rez](https://discourse.slicer.org/u/Rez)\
**Replies:** 5\
**Last updated:** [October 10, 2023, 1:10am UTC](https://discourse.slicer.org/t/i-can-not-find-the-slicer-radiomics-in-3d-slicer-in-my-mac/31589 "2023-10-10T01:10:36Z")

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Hello, I just downloaded 3D Slicer on my mac “Ventura 13.2.1”, but I am not able to find “SlicerRadiomics” in extension manager. I downloaded both “stable” and “nightly” versions 5.4.0 and 5.5.0. but still unable to fi…

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## [Whole-body image feature extraction](https://discourse.slicer.org/t/whole-body-image-feature-extraction/31795)

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**Author:** [@Jimmy](https://discourse.slicer.org/u/Jimmy)\
**Replies:** 7\
**Last updated:** [September 20, 2023, 12:16am UTC](https://discourse.slicer.org/t/whole-body-image-feature-extraction/31795 "2023-09-20T00:16:47Z")

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Hi, I am extracting radiomics features from whole-body PET/CT using Pyradiomics. My ROI is whole-body fat. Problem is, it got stuck at some point and would not give any output even after running overnight. But when I s…

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## [Resampling in the direction where labelmap spans only one slice](https://discourse.slicer.org/t/resampling-in-the-direction-where-labelmap-spans-only-one-slice/30789)

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**Author:** [@msahin](https://discourse.slicer.org/u/msahin)\
**Replies:** 1\
**Last updated:** [July 26, 2023, 10:47am UTC](https://discourse.slicer.org/t/resampling-in-the-direction-where-labelmap-spans-only-one-slice/30789 "2023-07-26T10:47:37Z")

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Hi everyone, I am working on extracting radiomics features from MR images. In my dataset, some ROIs span only a single slice. On imageoperations.py I read a comment saying “Do not resample in those directions where labe…

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## [SSLError for pywavelets when trying to use slicerradiomics](https://discourse.slicer.org/t/sslerror-for-pywavelets-when-trying-to-use-slicerradiomics/30220)

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**Author:** [@Victoria1](https://discourse.slicer.org/u/Victoria1)\
**Replies:** 4\
**Last updated:** [June 25, 2023, 9:52pm UTC](https://discourse.slicer.org/t/sslerror-for-pywavelets-when-trying-to-use-slicerradiomics/30220 "2023-06-25T21:52:48Z")

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Hello, I’m a doctor specialized in lung tumor, now i want to use slicerradiomics to extract features ,but i failed. 3Dslicer showed that ’ qSlicerPythonCppAPI::instantiateClass - \[ “SlicerRadiomicsWidget” \] - Failed t…

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## [How to realize the movement of mask/roi through 3dsclicer without changing the size and shape of mask/roi](https://discourse.slicer.org/t/how-to-realize-the-movement-of-mask-roi-through-3dsclicer-without-changing-the-size-and-shape-of-mask-roi/29500)

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**Author:** [@ending](https://discourse.slicer.org/u/ending)\
**Replies:** 3\
**Last updated:** [May 19, 2023, 5:43am UTC](https://discourse.slicer.org/t/how-to-realize-the-movement-of-mask-roi-through-3dsclicer-without-changing-the-size-and-shape-of-mask-roi/29500 "2023-05-19T05:43:06Z")

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Hello, everyone How to realize the movement of mask/roi through 3dsclicer without changing the size and shape of mask/roi？ Please provide me with detailed steps to achieve this operation, thank you all. Look forward t…

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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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## [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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## [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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## [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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## [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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## [Pyradiomics Features](https://discourse.slicer.org/t/pyradiomics-features/22860)

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**Author:** [@mselmanerel](https://discourse.slicer.org/u/mselmanerel)\
**Replies:** 2\
**Last updated:** [March 28, 2023, 9:55am UTC](https://discourse.slicer.org/t/pyradiomics-features/22860 "2023-03-28T09:55:44Z")

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Hello, I’m Selman EREL from Ankara Yildirim Beyazit University, Ankara, Turkey. I’m pursuing my PhD in Electrical and Electronics Engineering Department. My PhD topic is Radiomics. I’m responsible to research on radiomi…

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## [Parenchyma Analysis, series and variability](https://discourse.slicer.org/t/parenchyma-analysis-series-and-variability/28441)

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**Author:** [@Josune](https://discourse.slicer.org/u/Josune)\
**Replies:** 6\
**Last updated:** [March 20, 2023, 4:09pm UTC](https://discourse.slicer.org/t/parenchyma-analysis-series-and-variability/28441 "2023-03-20T16:09:44Z")

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Hello everyone: We would like to perform a comparative study of lung CT scans obtained on different dates, for patients who have undergone radiotherapy treatment. We would like to use the data obtained with the Parenchy…

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## [I have multiple 3D brain images and their segmentations. Which radiomics feature are relevant?](https://discourse.slicer.org/t/i-have-multiple-3d-brain-images-and-their-segmentations-which-radiomics-feature-are-relevant/28458)

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**Author:** [@AndreasL](https://discourse.slicer.org/u/AndreasL)\
**Replies:** 0\
**Last updated:** [March 19, 2023, 7:12pm UTC](https://discourse.slicer.org/t/i-have-multiple-3d-brain-images-and-their-segmentations-which-radiomics-feature-are-relevant/28458 "2023-03-19T19:12:21Z")

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Hi, community, I am new to radiomics and currently working on my research in MRI brain scans. I have successfully created the features but wanted to discuss with someone experienced for 15-20’ about the most defining ch…

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## [Radiomics stability analysis](https://discourse.slicer.org/t/radiomics-stability-analysis/22682)

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**Author:** [@JonasB](https://discourse.slicer.org/u/JonasB)\
**Replies:** 1\
**Last updated:** [March 19, 2023, 7:15pm UTC](https://discourse.slicer.org/t/radiomics-stability-analysis/22682 "2023-03-19T19:15:41Z")

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Hi, I am currently searching for a good method to test for radiomics feature stability. Unfortionetly, I do not have the opportunity to do a test-retesting as I am working with retrospective data. Is there any good me…

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## [Please quickly check my SlicerRadiomics/Pyradiomics parameters file for any contradictions and errors](https://discourse.slicer.org/t/please-quickly-check-my-slicerradiomics-pyradiomics-parameters-file-for-any-contradictions-and-errors/28207)

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**Author:** [@harad](https://discourse.slicer.org/u/harad)\
**Replies:** 2\
**Last updated:** [March 14, 2023, 7:56am UTC](https://discourse.slicer.org/t/please-quickly-check-my-slicerradiomics-pyradiomics-parameters-file-for-any-contradictions-and-errors/28207 "2023-03-14T07:56:05Z")

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Hi all, I would be extremely grateful if anyone could check my parameters file. It works but I am concerned that any of the settings may contradict each other? In the settings, it is essential that I have resampling, …

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## [Radiomics feature extraction of 2D images](https://discourse.slicer.org/t/radiomics-feature-extraction-of-2d-images/27767)

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**Author:** [@ysekikawa](https://discourse.slicer.org/u/ysekikawa)\
**Replies:** 0\
**Last updated:** [February 11, 2023, 1:56pm UTC](https://discourse.slicer.org/t/radiomics-feature-extraction-of-2d-images/27767 "2023-02-11T13:56:35Z")

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I have a question about SlicerRadiomics. If I want to extract Radiomics features for a 2D image, what should I put in the Input Image Volume? If the image does not have 3D information originally, can the values be compl…

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## [Shape features extraction works in Slicer Radiomics but fails with pure python pyradiomics](https://discourse.slicer.org/t/shape-features-extraction-works-in-slicer-radiomics-but-fails-with-pure-python-pyradiomics/27443)

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**Author:** [@Eloise](https://discourse.slicer.org/u/Eloise)\
**Replies:** 0\
**Last updated:** [January 24, 2023, 2:29pm UTC](https://discourse.slicer.org/t/shape-features-extraction-works-in-slicer-radiomics-but-fails-with-pure-python-pyradiomics/27443 "2023-01-24T14:29:46Z")

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Hello, I have a question regarding pyradiomics usage/configuration in Slicer. I performed manual segmentation of a structure in a CT exam with Slicer et tried extracting shape features with both Slicer Radiomics and pu…

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## [Covid lung radiomics feature extraction](https://discourse.slicer.org/t/covid-lung-radiomics-feature-extraction/26395)

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**Author:** [@Nima\_Yousefi](https://discourse.slicer.org/u/Nima_Yousefi)\
**Replies:** 10\
**Last updated:** [January 3, 2023, 7:14pm UTC](https://discourse.slicer.org/t/covid-lung-radiomics-feature-extraction/26395 "2023-01-03T19:14:21Z")

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Hello I’m working on feature extraction from lung and extracted features from left and right lung. My question is: is it possible to extract features from total lung?

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## [The unit of measurement of radiomics features](https://discourse.slicer.org/t/the-unit-of-measurement-of-radiomics-features/26993)

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**Author:** [@Nima\_Yousefi](https://discourse.slicer.org/u/Nima_Yousefi)\
**Replies:** 0\
**Last updated:** [December 31, 2022, 11:57am UTC](https://discourse.slicer.org/t/the-unit-of-measurement-of-radiomics-features/26993 "2022-12-31T11:57:41Z")

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Hi all, about radiomics features like First Order, GLCM ,… how can I known their the unit of measurement? Thanks.

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## [Quantifying "Information" Of Tumor CT Image Different Phases](https://discourse.slicer.org/t/quantifying-information-of-tumor-ct-image-different-phases/26943)

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**Author:** [@bsmarine](https://discourse.slicer.org/u/bsmarine)\
**Replies:** 0\
**Last updated:** [December 27, 2022, 4:02pm UTC](https://discourse.slicer.org/t/quantifying-information-of-tumor-ct-image-different-phases/26943 "2022-12-27T16:02:09Z")

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I’m working with multiphase CT images of liver tumors. Visually we see better demarcation of tumors and intricate enhancement pattern within tumors on arterial phase vs portal venous phase. Has anyone tried to use quant…

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## [Feature extraction from MRI slices](https://discourse.slicer.org/t/feature-extraction-from-mri-slices/26668)

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**Author:** [@Saadia\_Azeroual](https://discourse.slicer.org/u/Saadia_Azeroual)\
**Replies:** 2\
**Last updated:** [December 11, 2022, 2:48pm UTC](https://discourse.slicer.org/t/feature-extraction-from-mri-slices/26668 "2022-12-11T14:48:39Z")

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Hello Pyradiomics community, I am a little bit confused because I am new in radiomics. I have 3 MRI slices with 3 corresponding masks, and I want to know if I should extract radiomic features from each slice and calcul…

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## [Rotation and translation invariance of features](https://discourse.slicer.org/t/rotation-and-translation-invariance-of-features/26635)

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**Author:** [@mluerig](https://discourse.slicer.org/u/mluerig)\
**Replies:** 0\
**Last updated:** [December 7, 2022, 6:23pm UTC](https://discourse.slicer.org/t/rotation-and-translation-invariance-of-features/26635 "2022-12-07T18:23:45Z")

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Hi there, I’m using pyradiomics to extract features from blobs, and I just wanted to make sure that the features I am extracting are rotation and translation invariant - i.e., the object’s orientation and location insid…

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