Table 2.

The deidentification process (Part 1). The AiCRO system identifies items and performs deidentification actions by predefined action code.

Action code	Intended action
D	Metadata of name and IDa are replaced with word “DE-IDENTI.”
R	Metadata of scan/birth date are replaced with format “0000-0000.”
E	The original metadata are removed.
C	The original UIDb metadata are replaced with new UID.
N	A specific word is replaced with a new dedicated word.

^aID: identification.

^bUID: user identification.