F.5.24 Waveform Directory Record Definition
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### F.5.24 Waveform 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 "WAVEFORM". Table F.5-24 lists the set of keys with their associated Types for such a Directory Record Type. The description of these keys may be found in PS3.3 of the DICOM Standard in the Modules related to the Waveform IE. This Directory Record shall be used to reference a Waveform 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.5-24. Waveform 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.
Instance Number | (0020,0013) | 1 |
Content Date | (0008,0023) | 1 |
Content Time | (0008,0033) | 1 |
Any other Attribute of the Waveform IE Modules | 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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