1. You (and the radiographers) receive the credit for this part of the work (you can include citable DOIs)
2. Makes it easier to share this information with colleagues and potential collaborators
3. Keeps a reproducible record for your lab of all details and decisions made (version control)
4. You contribute to open and reproducible research since other researchers might reuse your MR protocol. This will speed up translation of your research findings and will ultimately increase the impact of your research.