The Application entity acting as a File-Set Creator generates a File Set under the STD-XA1K Application Profile Class. Typical entities using this role would include X-ray angiographic lab equipment, and archive systems that generate a patient record for transfer to another institution. File Set Creators shall be able to generate the Basic Directory SOP Class in the DICOMDIR File with all types of Directory Records related to the SOP Classes stored in the File-set.
An FSC shall offer the ability to either finalize the disc at the completion of the most recent write session (no additional information can be subsequently added to the disc) or to allow multi-session (additional information may be subsequently added to the disc). An FSC may allow packet-writing if supported by the media and file system specified in the profile.
Note: A multiple volume ( a logical volume that can cross multiple physical media) is not supported by this Application Profile Class. If a set of Files, e.g., a Study, cannot be written entirely on one piece of media, the FSC will create multiple independent DICOM File-sets such that each File-set can reside on a single piece of media controlled by its individual DICOMDIR file. The user of the FSC can opt to use written labels on the discs to reflect that there is more than one disc for this set of files (e.g., a Study).