Материал: part02

G.4.2.3.2.3 Asynchronous Nature​

FIND-SCU will only allow a single outstanding operation on an Association. Therefore, FIND-SCU will not perform asynchronous​ operations window negotiation.​

G.4.2.3.2.4 Implementation Identifying Information​

Table G.4.2-16. DICOM Implementation Class and Version for FIND-SCU​

G.4.2.3.3 Association Initiation Policy​

FIND-SCU attempts to initiate a new association when a study is received for which an appropriate Hanging Protocol Instance is not​ already stored in the local database.​

G.4.2.3.3.1 Activity - Query Remote AE​

G.4.2.3.3.1.1 Description and Sequencing of Activities​

A single attempt will be made to query the remote AE. If the query fails, for whatever reason, no retry will be performed.​

G.4.2.3.3.1.2 Proposed Presentation Contexts​

Table G.4.2-17. Proposed Presentation Contexts for FIND-SCU and Query Remote AE​

FIND-SCU will propose multiple Presentation Contexts, one for each of the supported Transfer Syntaxes, and an additional​ Presentation Context with all of the supported Transfer Syntaxes, in order to determine which Transfer Syntaxes the remote SCP​ supports, and which it prefers.​

G.4.2.3.3.1.2.1 Extended Negotiation​

No extended negotiation is performed.​

G.4.2.3.3.1.3 SOP Specific Conformance​

G.4.2.3.3.1.3.1 SOP Specific Conformance to C-FIND SOP Classes​

FIND-SCU provides standard conformance to the supported C-FIND SOP Class.​

The following applies to Hanging Protocol Information Model C-FIND.​

- Standard -​

If present in the response, Specific Character Set will be used to identify character sets other than the default character set for​ matching between Hanging Protocol and Image Instances.​

Table G.4.2.3.3.1.3.1-1. Hanging Protocol Information Model C-FIND SOP Specific Conformance​

G.4.2.3.3.1.3.2 Presentation Context Acceptance Criterion​

FIND-SCU does not accept associations.​

G.4.2.3.3.1.3.3 Transfer Syntax Selection Policies​

FIND-SCU prefers explicit Transfer Syntaxes. If offered a choice of Transfer Syntaxes in the accepted Presentation Contexts, it will​ apply the following priority to the choice of Presentation Context to use for the C-FIND operation:​

a.​first encountered explicit Transfer Syntax,​

b.​default Transfer Syntax.​

- Standard -​

G.4.2.3.3.1.3.4 Response Status​

FIND-SCUwillbehaveasdescribedinTableG.4.2-19inresponsetothestatusreturnedintheC-FINDresponsecommandmessage(s).​

Table G.4.2-19. Response Status for FIND-SCU and Query Remote AE Request​

G.4.2.3.4 Association Acceptance Policy​

FIND-SCU does not accept associations.​

G.4.2.4 MOVE-SCU​

G.4.2.4.1 SOP Classes​

MOVE-SCU provide Standard Conformance to the following SOP Class(es) :​

Table G.4.2-20. SOP Classes Supported By MOVE-SCU​

G.4.2.4.2 Association Policies​

G.4.2.4.2.1 General​

MOVE-SCU initiates but never accepts associations.​

Table G.4.2-21. Maximum PDU Size Received as a SCP for MOVE-SCU​

- Standard -​

G.4.2.4.2.3 Asynchronous Nature​

MOVE-SCU will only allow a single outstanding operation on an Association. Therefore, MOVE-SCU will not perform asynchronous​ operations window negotiation.​

G.4.2.4.2.4 Implementation Identifying Information​

Table G.4.2-23. DICOM Implementation Class and Version for MOVE-SCU​

G.4.2.4.3 Association Initiation Policy​

MOVE-SCU attempts to initiate a new association when the results of the FIND-SCU indicate matching Hanging Protocol Instances​ to retrieve.​

G.4.2.4.3.1 Activity - Retrieve From Remote AE​

G.4.2.4.3.1.1 Description and Sequencing of Activities​

A single attempt will be made to retrieve Hanging Protocol Instances from the remote AE. If the retrieve fails, for whatever reason,​ no retry will be performed.​

G.4.2.4.3.1.2 Proposed Presentation Contexts​

Table G.4.2-24. Proposed Presentation Contexts for MOVE-SCU and Retrieve From Remote AE​

MOVE-SCU will propose multiple Presentation Contexts, one for each of the supported Transfer Syntaxes, and an additional​ Presentation Context with all of the supported Transfer Syntaxes, in order to determine which Transfer Syntaxes the remote SCP​ supports, and which it prefers.​

G.4.2.4.3.1.2.1 Extended Negotiation​

No extended negotiation is performed.​

G.4.2.4.3.1.3 SOP Specific Conformance​

G.4.2.4.3.1.3.1 SOP Specific Conformance to C-FIND SOP Classes​

MOVE-SCU provides standard conformance to the supported C-MOVE SOP Class.​

No CANCEL requests are ever issued.​

The retrieval is performed from the AE that was specified in the Retrieve AE attribute returned from the query performed by FIND-​ SCU.Theinstancesareretrievedtothecurrentapplication'slocaldatabasebyspecifyingthedestinationastheAETitleoftheSTORE-​ SCP AE of the local application. This implies that the remote C-MOVE SCP must be preconfigured to determine the presentation​ address corresponding to the STORE-SCP AE. The STORE-SCP AE will accept storage requests addressed to it from anywhere,​

- Standard -​

so no pre-configuration of the local application to accept from the remote AE is necessary (except in so far as it was necessary to​ configure FIND-SCU).​

Table G.4.2-25. Request Identifier for MOVE-SCU​

G.4.2.4.3.1.3.2 Presentation Context Acceptance Criterion​

MOVE-SCU does not accept associations.​

G.4.2.4.3.1.3.3 Transfer Syntax Selection Policies​

MOVE-SCU prefers explicit Transfer Syntaxes. If offered a choice of Transfer Syntaxes in the accepted Presentation Contexts, it will​ apply the following priority to the choice of Presentation Context to use for the C-MOVE operation:​

a.​first encountered explicit Transfer Syntax,​

b.​default Transfer Syntax.​

G.4.2.4.3.1.3.4 Response Status​

MOVE-SCU will behave as described in the Table below in response to the status returned in the C-MOVE response command​ message(s).​

Table G.4.2-26. Response Status for MOVE-SCU and Retrieve From Remote AE Request​

- Standard -​