AcquisitionDuration - misunderstanding?

[karl-koschutnig]

Dear experts,

We are using the latest bids-validator and have to deal with this error:

The fields 'RepetitionTime' and 'AcquisitionDuration' for this file are mutually exclusive. To specify acquisition duration, use 'SliceTiming' or 'DelayTime' (RepetitionTime - AcquisitionDuration).

The dicom tag tells us:
(0018,9073) Acquisition Duration FD 1 8 313.17700000000002
(0018,0080) Repetition Time DS 1 4 1970

It's 313 seconds vs. 1970 ms.

So in our opinion, the Acquisition duration should be: TR * nr.Volumes.

The provided link also tells us:
Acquisition duration: Duration of the single continuous gathering of data over a period of time that resulted in this instance, in seconds.

https://dicom.innolitics.com/ciods/computed-radiography-image/general-acquisition/00189073

[effigies]

Needs to be resolved in BIDS: bids-standard/bids-specification#1906