Are MRML node attributes saved and loaded by Sequences? My suspicion is that they are not. I tried adding attributes to an image and scrolling the Sequence Browser to new images. But the attributes stayed. I also tried recording a sequence of images with attributes, but as I’m replaying the sequence the attributes in the proxy node seem to remain unchanged.
What I wanted to do is record a sequence of segmentations (for a sequence of ultrasound images) and make note in the recorded nodes which original sequence index corresponded to them. I wanted to avoid duplicate segmentations by checking if the original sequence index has been saved in the segmentation sequence, and overwrite the segmentation if that same index already existed.
If attributes are not saved/loaded with sequences, what other option do I have to tag MRML nodes in a sequence?