Agenda for May call | Wed 15 6pm / 5pm / 12noon / 9am

[KirstieJane]

Next dev call: Wednesday 15 May at 6pm CEST / 5pm BST / 12noon EDT / 9am PDT

All welcome, please see BIDS mailing list for zoom link (or ping @KirstieJane!)

Agenda

The following points are put in place by @KirstieJane after the March call....they might move around as we develop and discuss the extension 😸

Document merged changes

There are a few changes that are already merged to master but that aren't reflected in the ProposedChangesToSpecification.md file.

• indexable metadata merged in PR Indexable metadata #37 but issue Include indexable_metadata in the specification #26 open until the PCTS doc is updated
• there are a few changes merged in PR Insert descriptions into main text #30 but not captured in the PCTS doc
  • Discussion about why we have justified collecting different scans together under one suffix (eg: MP2RAGE and MPM) needs to be added....for example.

Update the examples

We have some nice example folder structures at the moment, but there are a couple more tasks that should be done. See #34 & #35, #46.

General driving principle is that for each new concept in the specification we have an example in the text (and maybe as a dataset?)

There's the open issue #11 which hasn't moved forwards in a while - lets see where that goes.

Field maps

We need to update the specification (and maybe some of the examples - the files might be in the wrong folders) to generalise the use of field maps. See #44

Symbolic links

Need to add to the specification something about being able to symlink derivatives files to raw. See #25

• Specifically to allow outputs to be used with current BIDS-Apps.
• In the future, hopefully the BIDS-Apps will be able to take inputs from the derivatives, so this linking is a band-aid to help qMRI researchers get into the BIDS-App ecosystem, not a long term plan 😄

Timeline

It would be GREAT to get a PR open to the main specification before OHBM. Documenting what we have done (and why we have done it) is one of the big steps in getting there.... 💪 Keep up the hard work 🏋️ 🏋️‍♀️ 👾

We'll plan to meet on Wednesday 29 May at 4pm CEST / 3pm BST / 10am EDT / 7am PDT and also in person at OHBM in the Open Science Room. Stay tuned 🚀

[nicholst]

I can't make this call but I wanted to ping a related issue I posted on the BIDS main repo:

"PDT2 anatomical modality: Recommendations and potential use of _echo"
bids-standard/bids-specification#223

Mainly just looking for recommendations of how to name PD and T2 echo pairs when they've been glued together with the _PDT2 modality label.

[agahkarakuzu]

@nicholst _PDT2 was there as a placeholder for a while, it is still untouched. Thank you for the reference, I will read this.

[KirstieJane]

Thanks @nicholst! I'm closing this issue as we have had the call.

I think @Gilles86 is going to reply to your question at bids-standard/bids-specification#223 though. If it doesn't make sense then please open a new issue to discuss. I think the answer is related to #50 which contains a link to a WIP 😄