# Segmentation of heart according to intensity change in art vs venous phase

**URL:** <https://discourse.slicer.org/t/segmentation-of-heart-according-to-intensity-change-in-art-vs-venous-phase/39983>\
**Category:** Support\
**Tags:** segmentation, heart\
**Created:** [November 1, 2024, 12:11pm UTC](https://discourse.slicer.org/t/segmentation-of-heart-according-to-intensity-change-in-art-vs-venous-phase/39983 "2024-11-01T12:11:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Bor\_Antolic](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/bor_antolic/32/17628_2.png) [@Bor\_Antolic](https://discourse.slicer.org/u/Bor_Antolic)\
**Post date:** [November 1, 2024, 12:11pm UTC](https://discourse.slicer.org/t/segmentation-of-heart-according-to-intensity-change-in-art-vs-venous-phase/39983/1 "2024-11-01T12:11:22Z")

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I have a cardiac CT that was done in arterious, venous and also late phase.  
Is there a way to take advantage of pixel intensity changes across these different phases to aid in automatic segment registration?