How should one be naming BIDS data with the fat and water reconstruction from the Dixon method applied to a fast low angle shot 3D sequence?
I’d think something like this maybe?
Which brings me to my second question: are there any standardized values for the field
-rec listed somewhere? I found this link but it is unclear to me what could be the possible values (or is it at the full discretion of the user, and if so, would we want to bring some standard values here?).
I don’t know anything about the sequence or reconstruction you’re asking about (sorry!), so hopefully someone who does will follow up here. However, purely from a BIDS filename construction perspective, you’re going to need a suffix to have a valid name.
The only thing I can see here is that it’s a FLASH sequence, but the
FLASH suffix is deprecated since it doesn’t convey any contrast information. Do any of the suffixes listed in the MRI entity table fit?
rec accepts a freeform alphanumeric label. Certainly, some labels might be more common if certain tools use them, such as
rec-phase, which were used by
heudiconv before we added the
part entity to BIDS, but I don’t believe there are any standardized labels for it.
Sorry I can’t help much.
Thank you @tsalo ! This is very helpful.
In this case we’ll probably throw the T1w label.
Looking at the list of possible values, I am a bit confused: what is the difference between
T2star (I assume that
T2star is not the relaxation parameter, which corresponds to
T2starmap). Same comment for
Also, I still see the value
FLASH in this table, but as you said I though it was deprecated?
T2star is deprecated, since it could mean either
T2starw (T2*-weighted) or
T2starmap (quantitative T2* map). (Same for
Also, I still see the value FLASH in this table, but as you said I though it was deprecated?
thanks @effigies, may i suggest to not list in the table the values that are deprecated? someone finding this table without knowing what values are deprecated might use them