F.5.2 Study Directory Record Definition

F.5.2 Study Directory Record Definition (Current)
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The Directory Record is based on the specification of Section F.3. It is identified by a Directory Record Type (0004,1430) of Value "STUDY". Table F.5-2 lists the set of Keys with their associated Types for such a Directory Record Type. The description of these Keys may be found in the Modules related to the Study IE of Composite IODs. This Type of Directory Record may reference a Lower-Level Directory Entity that includes one or more Directory Records as defined in Table F.4-1.

Table F.5-2. Study Keys

Key	Tag	Type	Attribute Description
Specific Character Set	(0008,0005)	1C	Required if an extended or replacement character set is used in one of the Keys.
Study Date	(0008,0020)	1
Study Time	(0008,0030)	1
Study Description	(0008,1030)	2
Study Instance UID	(0020,000D)	1
Study ID	(0020,0010)	1
Accession Number	(0008,0050)	2
Any other Attribute of the Study IE Modules		3

For a given File-set, the Study Instance UID (0020,000D) shall have a unique value. This means that the value shall not appear in different Study Directory Records.