Hello everyone,

I am working with the OASIS-3 dataset and would like to process the ASL images quantitatively. However, I could not find several important acquisition parameters in the available metadata, including:

Bolus duration (labeling duration)

TI1 and TI2 (or equivalent inversion times / post-labeling delays)

Labeling scheme details (PASL, pCASL, etc.)

Other ASL sequence parameters required for CBF quantification

I checked the dataset documentation and image metadata available to me, but these parameters do not appear to be included.

Has anyone identified where these ASL acquisition parameters can be obtained? Are they available in the original DICOM headers, a separate documentation file, or through direct contact with the OASIS-3 team?

Any guidance would be greatly appreciated.

Thank you!