# R-Vessel-X node position

**URL:** <https://discourse.slicer.org/t/r-vessel-x-node-position/25688>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [October 13, 2022, 4:50pm UTC](https://discourse.slicer.org/t/r-vessel-x-node-position/25688 "2022-10-13T16:50:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gonzalo\_Rojas\_Costa](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/gonzalo_rojas_costa/32/5259_2.png) [@Gonzalo\_Rojas\_Costa](https://discourse.slicer.org/u/Gonzalo_Rojas_Costa)\
**Post date:** [October 13, 2022, 4:50pm UTC](https://discourse.slicer.org/t/r-vessel-x-node-position/25688/1 "2022-10-13T16:50:23Z")

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Another question: I specified all portal vein nodes. Why the button “Extract Vessels from node tree” continue in gray color without activating it?

Sincerely

Gonzalo Rojas Costa

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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:** [October 21, 2022, 3:31am UTC](https://discourse.slicer.org/t/r-vessel-x-node-position/25688/2 "2022-10-21T03:31:30Z")

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It seems that RVX extension developers not monitor the forum. You can try to mention @Thibault_Pelletier or submit your question to the [RVX project repository](https://github.com/R-Vessel-X/SlicerRVXLiverSegmentation).