# How can I perform segmentation of the masticatory muscles (temporalis, masseter, pterygoids) using MR images?

**URL:** <https://discourse.slicer.org/t/how-can-i-perform-segmentation-of-the-masticatory-muscles-temporalis-masseter-pterygoids-using-mr-images/46466>\
**Category:** Feature requests\
**Tags:** segmentation\
**Created:** [March 16, 2026, 6:00pm UTC](https://discourse.slicer.org/t/how-can-i-perform-segmentation-of-the-masticatory-muscles-temporalis-masseter-pterygoids-using-mr-images/46466 "2026-03-16T18:00:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Alirasat](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/alirasat/32/82092_2.png) [@Alirasat](https://discourse.slicer.org/u/Alirasat)\
**Post date:** [March 16, 2026, 6:00pm UTC](https://discourse.slicer.org/t/how-can-i-perform-segmentation-of-the-masticatory-muscles-temporalis-masseter-pterygoids-using-mr-images/46466/1 "2026-03-16T18:00:50Z")

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I want to perform segmentation of the masticatory muscles (temporalis, masseter, and pterygoids) on 1.5-Tesla MR images, but I have not been able to achieve this using MONAI or TotalSegmentator. I would be very grateful if you could help me