AGFA HE/001132 User Manual

Page of 93
HE/001132
Page 46 of 92
Document No. 001132, Revision 2.0
Agfa HealthCare
NodeID Livelink : 14140190
14 June, 2007
2.2.3.3
Association Initiation Policies
2.2.3.3.1
Activity – Query RIS
2.2.3.3.1.1
Description and Sequencing of Activity
The request for Query RIS is initiated by user interaction (pressing the “Query RIS” button) or automatically 
at specific time intervals (configurable by the user). Depending on the configuration this can either be a query 
based on a user provided accession number or be a complete worklist update based on date, modality and 
Scheduled Station AE title.
RIS AE
Department Scheduler
2. C-FIND Request (Worklist query)
1. Open Association
3. C-FIND Response(Worklist item)-status = pending
6. Close Association
4. C-FIND Response(Worklist item)-status = pending
5. C-FIND Response - status = success
Figure 2.2-4: Sample Sequencing Diagram for Refresh Worklist
2.2.3.3.1.2
Proposed Presentation Contexts
The RIS Application Entity is capable of proposing the Presentation Contexts shown in the following table:
Table 2.2-42: Presentation Contexts Proposed by DICOM Store AE
Presentation Context Table
Abstract Syntax
Transfer Syntax
Name
UID
Name List
UID List
Role
Extended 
Negotiation
Modality 
Worklist 
Information 
Model – FIND
1.2.840.10008.5.1.4.31
Implicit VR Little 
Endian
1.2.840.10008.1.2
SCU
None
2.2.3.3.1.3
SOP Specific Conformance – Modality Worklist SOP Class 
(1.2.840.10008.5.1.4.31)
The Modality Worklist SOP class, defined within the Basic Worklist Management Service Class, defines an 
application-level class of service which facilitates the communication of information to the imaging modality 
about Scheduled Procedure Steps, and entities related to the Scheduled Procedure Steps.
This worklist is structured according to Scheduled Procedure Steps. A procedure step is a unit of service in 
the context of a requested imaging procedure.