F.5.31 Hanging Protocol Directory Record Definition
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### F.5.31 Hanging Protocol Directory Record Definition

The Directory Record is based on the specification of Section F.3. It is identified by a Directory Record Type of Value "HANGING PROTOCOL". Table F.5-31 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 Hanging Protocol IOD. This Directory Record shall be used to reference a Hanging Protocol SOP Instance. 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.5-31. Hanging Protocol Keys

Attribute Name | 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
Hanging Protocol Name | (0072,0002) | 1 |
Hanging Protocol Description | (0072,0004) | 1 |
Hanging Protocol Level | (0072,0006) | 1 |
Hanging Protocol Creator | (0072,0008) | 1 |
Hanging Protocol Creation DateTime | (0072,000A) | 1 |
Hanging Protocol Definition Sequence | (0072,000C) | 1 | Sequence that defines the type of imaging studies to which this Hanging Protocol applies. One or more Items shall be included in this sequence.
>Modality | (0008,0060) | 1C | Required if Anatomic Region Sequence (0008,2218) is not present. May be present otherwise.
>Anatomic Region Sequence | (0008,2218) | 1C | One or more Items shall be included in this sequence. Required if Modality (0008,0060) is not present. May be present otherwise.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” |
>Laterality | (0020,0060) | 2C | Required if Anatomic Region Sequence (0008,2218) is present.
>Procedure Code Sequence | (0008,1032) | 2 | Zero or more Items shall be included in this Sequence.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” |
>Reason for Requested Procedure Code Sequence | (0040,100A) | 2 | Zero or more Items shall be included in this sequence.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” |
Number of Priors Referenced | (0072,0014) | 1 |
Hanging Protocol User Identification Code Sequence | (0072,000E) | 2 | Sequence that provides a coded identifier for the person, group, or site for which this Hanging Protocol was defined. Zero or one Item shall be included in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” |
Any other Attribute of the Hanging Protocol IOD | 3 |

### Note

Because Referenced SOP Instance UID in File (0004,1511) may be used as a "pseudo" Directory Record Key (see Table F.3-3), it is not duplicated in this list of keys.

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