# Quantitative analysis of a lung SPECT

**URL:** <https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976>\
**Category:** Support\
**Tags:** registration, segmentation\
**Created:** [February 13, 2021, 6:01pm UTC](https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976 "2021-02-13T18:01:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![fbaerenfaenger](https://avatars.discourse-cdn.com/v4/letter/f/a698b9/32.png) [@fbaerenfaenger](https://discourse.slicer.org/u/fbaerenfaenger)\
**Post date:** [February 13, 2021, 6:01pm UTC](https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976/1 "2021-02-13T18:01:30Z")

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Is it possible to contour the different lobes of the lung in a CT and then transfer the contours to a SPECT for quantitative evaluation?

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [February 13, 2021, 6:14pm UTC](https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976/2 "2021-02-13T18:14:40Z")

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Yes, if the SPECT and CT are aligned then you can segment one image and use those segments to quantify the other image (for example, using Segment Statistics module).

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**Author:** ![fbaerenfaenger](https://avatars.discourse-cdn.com/v4/letter/f/a698b9/32.png) [@fbaerenfaenger](https://discourse.slicer.org/u/fbaerenfaenger)\
**Post date:** [February 13, 2021, 6:26pm UTC](https://discourse.slicer.org/t/quantitative-analysis-of-a-lung-spect/15976/3 "2021-02-13T18:26:33Z")

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Thanks a lot for your answer!  
Then I will start to get into it.