9.3.3 C-GET Protocol

9.3.3 C-GET Protocol (Current)
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The information necessary for the C-GET request and indication DIMSE-C primitives are conveyed in the C-GET-RQ Message. The information necessary for the C-GET response and confirmation DIMSE-C primitives are conveyed in the C-GET-RSP Message. The information necessary for the C-GET Cancel Request and Cancel Indication primitives are conveyed in the C-CANCEL-GET-RQ Message.

9.3.3.1 C-GET-RQ

The C-GET-RQ Message contains fields as defined in Table 9.3-6. Each field shall conform to DICOM encoding and Value Representation as defined in PS3.5. Fields are required as specified in the C-GET service definition unless otherwise noted in Table 9.3-6. Fields not specified in the C-GET service definition but present in Table 9.3-6 are required by the DIMSE-C protocol.

Table 9.3-6. C-GET-RQ Message Fields

Message Field	Tag	VR	VM	Description of Field
Command Group Length	(0000,0000)	UL	1	The even number of bytes from the end of the value field to the beginning of the next group.
Affected SOP Class UID	(0000,0002)	UI	1	SOP Class UID associated with this operation.
Command Field	(0000,0100)	US	1	This field distinguishes the DIMSE-C operation conveyed by this Message. The value of this field shall be set to 0010H for the C-GET-RQ Message.
Message ID	(0000,0110)	US	1	Implementation-specific value that distinguishes this Message from other Messages.
Priority	(0000,0700)	US	1	The priority shall be set to one of the following values: LOW = 0002H MEDIUM = 0000H HIGH = 0001H
Command Data Set Type	(0000,0800)	US	1	This field indicates that a Data Set is present in the Message. It shall be set to any value other than 0101H (Null).
Identifier	(no tag)	-	-	A Data Set that encodes attributes providing status information about the C-GET operation. See Section 9.1.3.1.5.

Note

Implementations that require compatibility to previous versions of this Standard must set the Command Data Set Type (0000,0800) Field to 0102H (Identifier).

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9.3.2.4 C-FIND Protocol Procedures	Home	9.3.3.2 C-GET-RSP