# Estimation of vocal tract area function from rt MRI images

**URL:** <https://discourse.slicer.org/t/estimation-of-vocal-tract-area-function-from-rt-mri-images/45027>\
**Category:** Community\
**Created:** [November 10, 2025, 6:56pm UTC](https://discourse.slicer.org/t/estimation-of-vocal-tract-area-function-from-rt-mri-images/45027 "2025-11-10T18:56:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cbbader](https://avatars.discourse-cdn.com/v4/letter/c/a88e57/32.png) [@cbbader](https://discourse.slicer.org/u/cbbader)\
**Post date:** [November 10, 2025, 6:56pm UTC](https://discourse.slicer.org/t/estimation-of-vocal-tract-area-function-from-rt-mri-images/45027/1 "2025-11-10T18:56:11Z")

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I’m a phonetician with lots of 2D and 3D rt MRI images of the vocal tract. Any tips on how to extract the vocal tract area function from these images?

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**Author:** ![ebrahim](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ebrahim/32/13403_2.png) [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Post date:** [November 11, 2025, 5:26am UTC](https://discourse.slicer.org/t/estimation-of-vocal-tract-area-function-from-rt-mri-images/45027/2 "2025-11-11T05:26:17Z")

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Some starting points for segmentation in 3D Slicer:

- [Image Segmentation — 3D Slicer documentation](https://slicer.readthedocs.io/en/latest/user_guide/image_segmentation.html)
  - If cross-sectional area is what you mean then: [Segment statistics — 3D Slicer documentation](https://slicer.readthedocs.io/en/latest/user_guide/modules/segmentstatistics.html#how-to-get-cross-sectional-area-of-a-segment-along-a-certain-axis)

- [Segmentation recipes for 3D Slicer | 3D Slicer segmentation recipes](https://lassoan.github.io/SlicerSegmentationRecipes/)

Can you show an example of what it looks like in a few slices, indicating what kind of structure/metrics you want to extract?