DICOM PS3.4 2016e - Service Class Specifications

CC.2.8.2 Service Class User Behavior
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#### CC.2.8.2 Service Class User Behavior

All C-FIND SCUs shall be capable of generating query requests that meet the requirements of the "Worklist" Search Method (see Section CC.2.8.3.1).

Required Keys and Optional Keys, identified in Table CC.2.5-3, associated with the Query may be contained in the Identifier.

An SCU conveys the following semantics using the C-FIND requests and responses:

- The SCU requests that the SCP perform a match of all keys specified in the Identifier of the request against the information it possesses of the Query specified in the request.

- The SCU shall interpret Pending responses to convey the Attributes of a match of an item.

- The SCU shall interpret a response with a status equal to Success, Failure, or Cancel to convey the end of Pending responses.

- The SCU shall interpret a Failure response to a C-FIND request as an indication that the SCP is unable to process the request.

- The SCU may cancel the C-FIND service by issuing a C-FIND-CANCEL request at any time during the processing of the C-FIND. The SCU shall recognize a status of Cancel to indicate that the C-FIND-CANCEL was successful.

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DICOM PS3.4 2016e - Service Class Specifications