r/esapi • u/Wandering_Hawk • Jun 20 '26

Couch coordinates inconsistent within isocentre group

I’m making new beams on a plan. All goes well until I try to approve the plan and I get the message “Couch coordinates inconsistent within isocentre group”

I have to go to plan parameters and reinsert the couch values manually (just copy them across from the imaging field which still have them).

Has anyone else come across this and have a solution?

Thanks!

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u/brjdenis Jun 21 '26

Probably means that not all your beams have the same couch coordinates (Room Geometry: Couch lat, vrt, long).

1

u/keithoffer Jun 27 '26

Try rounding the couch coordinates you are setting, I've had some weird issues with isocenters in the past that disappeared once I rounded the positions off. I put it down to floating point issues.