DICOM PS3.7 2019a - Message Exchange

10.3.6 N-DELETE Protocol

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.


DICOM PS3.7 2019a - Message Exchange