In one of out projects, we will be storing a lot of data related to medical images. I’m having a hard time figuring out where and if this data fits into the OMOP schema. Specifically, we will need:
- a record representing the image capture event
- a record representing the image itself
- all the structured, unstructured and note data associated with the image
For #1, the closest match I could think of was device_exposure. Then I was thinking #2 would be an observation. Then #3 would include notes, measurements and observations all associated with #2 using the fact_relationship table. Any problems with that plan or any ideas for doing it better?
Also, related to that question - Is it ever appropriate to extend your implementation of the OMOP model with custom tables if you feel that some of your data doesn’t really fit? Or is that considered bad practice?
Thanks