I have MRI scans of the knee (femur and tibia) and I am looking to compare the position of fiducials on the skin with respect to the bone between 2 different scans. I have segmented each bone in both scans, and then I start a new Slicer scene, upload 2 segmentation (ex. tibia1(before movement) and …

It sounds like you didn’t export the transformed point. You can use Harden transform in the context menu of the Transform hierarchy tab of the Data module. Or the button at the bottom of the Transforms module. [image]

The point/marker/fiducial that I want to transform is not saved with the segment, I think when I save the segment from the original scan I need to save it with the original as the same as the original scan. That would solve my problem!

I meant to say I need the segment coordinate system/origin to be the same in the original scan and when I export the segment and bring back only the segment.

Measuring distance between markers in 2 different scans, struggling with transform because of unknown segment origins?

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tbmeier (Tess Meier) February 2, 2022, 5:51pm 5

I think I found the answer here !! How to provide global coordinate system after crop volume segment? - #2 by lassoan

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Measuring distance between markers in 2 different scans, struggling with transform because of unknown segment origins?

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