40 Dicom annotation layers

40 Dicom annotation layers

I see some Dicom images have text annotation and image annotation
(showing a rulera and telling the measurement). What are the
differences in implementing the text annotaion and image annotaion?

We want to draw closed curves around some portions of the tissue
indicating the shape of them. We need to annotate 40 layers. Each
layer is a black-white binary image. Is there any free & commerial
Dicom software can handle this kind of 40-layer annotations?


Thanks,


D