DICOM PS3.18 2019b - Web Services

10.6.3.3.3 Instance Resources (Current)
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##### 10.6.3.3.3 Instance Resources

For each matching Instance, the origin server shall return all Attributes listed in Table 10.6.3-5, if present in the Instance. The Type column in the table below refers to the Query/Retrieve Attribute Types defined in Section C.2.2.1 “Attribute Types” in PS3.4. The unique key for an Instance resource search response is the SOP Instance UID (0008,0018).

Table 10.6.3-5. Instance Resources Search Response Payload

Attribute Name | Tag | Type | Condition
--- | --- | --- | ---
Specific Character Set | (0008,0005) | C | Shall be present if known
SOP Class UID | (0008,0016) | R |
SOP Instance UID | (0008,0018) | U |
Instance Availability | (0008,0056) | C | Shall be present if known
Timezone Offset From UTC | (0008,0201) | C | Shall be present if known
Retrieve URL | (0008,1190) | R | Shall be present if the Instance is retrievable by the Retrieve transaction
Instance Number | (0020,0013) | R |
Rows | (0028,0010) | C | Shall be present if known
Columns | (0028,0011) | C | Shall be present if known
Bits Allocated | (0028,0100) | C | Shall be present if known
Number of Frames | (0028,0008) | C | Shall be present if known

### Note

While some of the above Attributes in are optional in Table C.6-1 “Patient Level Attributes for the Patient Root Query/Retrieve Information Model” in PS3.4, they are consistent with the those required in [IHE RAD TF Vol2] Table 4.14-1.

In addition, the response shall contain:

- All other Instance Level Attributes passed as match parameters, or Study, Series, or Instance Level Attributes passed as includefield parameters that are supported by the origin server.

- If the "includefield" parameter has been specified in the request and its value is "all", Attribute include all available Instance Level Attributes

- If the Target Resource is All Instances, then include all Study level Attributes specified in Section 10.6.3.3.1.

- If the Target Resource is All Instances or Study's Instances, then include all Series level Attributes specified in Section 10.6.3.3.2.

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DICOM PS3.18 2019b - Web Services