# \#mri

**URL:** https://discourse.itk.org/tag/mri/100.md

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

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## [Spine CT and MRI images registration](https://discourse.itk.org/t/spine-ct-and-mri-images-registration/5146)

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**Author:** [@ainor](https://discourse.itk.org/u/ainor)\
**Replies:** 5\
**Last updated:** [July 5, 2022, 9:06am UTC](https://discourse.itk.org/t/spine-ct-and-mri-images-registration/5146 "2022-07-05T09:06:32Z")

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Hello, I am trying to make an automatic registration between CT and MRI images of the spine with ITK, the images are of the same person but they can have different sizes as the example that I show in the attached images. …

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## [How to get SLIC visualisation using SimpleITK SLICImageFilter?](https://discourse.itk.org/t/how-to-get-slic-visualisation-using-simpleitk-slicimagefilter/4992)

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**Author:** [@aliabidi](https://discourse.itk.org/u/aliabidi)\
**Replies:** 15\
**Last updated:** [June 6, 2022, 5:53pm UTC](https://discourse.itk.org/t/how-to-get-slic-visualisation-using-simpleitk-slicimagefilter/4992 "2022-06-06T17:53:12Z")

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Sorry if this is a basic question, I was just wondering how I could get a visualisation to show the result of a SLIC segmentation, such as: I would like to generate a few visualisations like this using different SLIC…

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## [3D SLIC Visualisation](https://discourse.itk.org/t/3d-slic-visualisation/5010)

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**Author:** [@aliabidi](https://discourse.itk.org/u/aliabidi)\
**Replies:** 1\
**Last updated:** [May 25, 2022, 11:42pm UTC](https://discourse.itk.org/t/3d-slic-visualisation/5010 "2022-05-25T23:42:40Z")

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As a follow-up from this question regarding SLIC segmentation in 2D, I was wondering whether there is any method or technique to visualise images in 3D? Something similar to the image below from this paper. To give s…

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## [Simple region-growing segmentation of the small intestine is terrible, using many seed points and 3D T2 MRI data](https://discourse.itk.org/t/simple-region-growing-segmentation-of-the-small-intestine-is-terrible-using-many-seed-points-and-3d-t2-mri-data/4942)

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**Author:** [@aliabidi](https://discourse.itk.org/u/aliabidi)\
**Replies:** 8\
**Last updated:** [April 28, 2022, 4:55pm UTC](https://discourse.itk.org/t/simple-region-growing-segmentation-of-the-small-intestine-is-terrible-using-many-seed-points-and-3d-t2-mri-data/4942 "2022-04-28T16:55:15Z")

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I am currently trying to apply region growing to 3D T2 MRI scans which I have been given, to segment the end of the small intenstine (i.e. the terminal ileum). I am using several features from SimpleITK. The problem is, …

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## [what is denoted by sitk.GetDirection()](https://discourse.itk.org/t/what-is-denoted-by-sitk-getdirection/3162)

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**Author:** [@prms](https://discourse.itk.org/u/prms)\
**Replies:** 2\
**Last updated:** [June 13, 2020, 11:44am UTC](https://discourse.itk.org/t/what-is-denoted-by-sitk-getdirection/3162 "2020-06-13T11:44:06Z")

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I want to understand the interpretation of the array returned by GetDirection in case of MRI image. (-0.9998157207129488, 0.019196994953562158, 0.0, -0.019196994953562158, -0.9998157207129488, 0.0, 0.0, 0.0, 1.0…

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## [Issues reproducing N4BiasFieldCorrection results in Windows and Linux](https://discourse.itk.org/t/issues-reproducing-n4biasfieldcorrection-results-in-windows-and-linux/1623)

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**Author:** [@rcorredorj](https://discourse.itk.org/u/rcorredorj)\
**Replies:** 12\
**Last updated:** [April 1, 2019, 3:47pm UTC](https://discourse.itk.org/t/issues-reproducing-n4biasfieldcorrection-results-in-windows-and-linux/1623 "2019-04-01T15:47:54Z")

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Hi ITKers, I’m having troubles to reproduce exactly the same results with the N4BiasFieldCorrection in Windows vs. Linux. Even more strange it does work for certain cases, but not for others. I’ve tried already many thi…