The Radiology Audit Trail Option is an option of the Audit Trail and Node Authentication (ATNA) profile.  The ATNA Profile, part of the IT Infrastructure Technical Framework, provides security and privacy mechanisms like a common audit trail and authentication for distributed applications.

This option deals largely with the details of the Record Audit Event transaction in the IT Infrastructure Technical Framework.  This option defines audit events on IHE Radiology transactions for a Secure Node.  This option does not extend the Authenticate Node transaction in the ATNA profile.

Refer to the ITI-ATNA Profile (ITI TF-1: 9) for the full definition of the ATNA profile.

Source: IHE Radiology Technical Framework rev 8.