10.3.6 N-DELETE Protocol

10.3.6 N-DELETE Protocol (Current)
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The information necessary for the N-DELETE request and indication DIMSE-N primitives are conveyed in the N-DELETE-RQ Message. The information necessary for the N-DELETE response and confirmation DIMSE-N primitives are conveyed in the N-DELETE-RSP Message.

10.3.6.1 N-DELETE-RQ

The N-DELETE-RQ Message contains fields as defined in Table 10.3-11. Each field shall conform to DICOM encoding and Value Representation as defined in PS3.5. Fields are required as specified in the N-DELETE service definition unless otherwise noted in Table 10.3-11. Fields not specified in the N-DELETE service definition but present in Table 10.3-11 are required by the DIMSE-N protocol.

Table 10.3-11. N-DELETE-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.
Requested SOP Class UID	(0000,0003)	UI	1	SOP Class UID of the SOP Instance to be deleted.
Command Field	(0000,0100)	US	1	This field distinguishes the DIMSE-N operation conveyed by this Message. The value of this field shall be set to 0150H for the N-DELETE-RQ Message.
Message ID	(0000,0110)	US	1	Implementation-specific value that distinguishes this Message from other Messages.
Command Data Set Type	(0000,0800)	US	1	This field indicates that no Data Set is present in the Message. It shall be set to the value of 0101H.
Requested SOP Instance UID	(0000,1001)	UI	1	Contains the UID of the SOP Instance to be deleted.

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