Hi BIDS experts,
We’re trying to organize our ex vivo MRI data into BIDS-compliant format, and are facing issues with our B1+ maps.
We are not using any of the standard B1+ mapping protocols listed in the qMRI appendix and are not sure how to best organize this data. To measure B1, we acquire FLASH images with many different flip angles and a long TR, and fit the bloch equation using a look-up table.
I see three potential ways of organizing this data:
- Create a new TB1 file collection (TB1VFA?), but this does not seem to be BIDS-compatible
- Use one of the standard TB1 suffixes. This feels very wrong.
- Add them as anatomical VFA data. But I am worried it will confuse users, who will have to differentiate between the actual high-resolution anatomical VFAs, and the low-resolution VFAs used for B1 mapping.
Is there a good way to do this?