In BIDS-PET there are two entries into sidecar JSON:
PharmaceuticalDoseTime and InjectionStart , that seemingly referes to the time of tracer injection.
One (InjectionStart) refers to DICOM tag Contrast/Bolus Start Time, while other (PharmaceuticalDoseTime) refers to DICOM’s Intervention Drug Start Time.
However I have ECAT files, in which only dose_start_time is present. Does this must go to BIDS InjectionStart or PharmaceuticalDoseTime?