How to interact with RIS systems

Hello,

My name is Daniel. I hope you are well.

I am seeking to learn about RIS Systems and how to interact with them programatically. Do you know of any resources that could help me understand RIS systems out in the wild? Books, github projects or articles would be really useful at my stage of research.

It took some tome to understand PACS systems but Information on RIS systems seems even more scarce.

Are there standard protocols that can be utilised? Can a secure client be setup to fetch patient data and match it to new studies from a PACS system?

Kind regards,

Daniel