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DICOM PS3.2 2020a - Conformance​

Page 41​

 

Note​

 

 

IODs from a Standard Extended SOP Class may be freely exchanged between DICOM​

 

implementations since implementations that do not recognize the additional Type 3​

 

Attributes would simply ignore them.​

 

Specialized SOP Class​

ASOPClassderivedfromaStandardSOPClassthathasbeenspecializedinanimplementation​

 

by additional Type 1, 1C, 2, 2C, or 3 Attributes, by enumeration of specific permitted values for​

 

Attributes,orbyenumerationofspecificpermittedTemplates.TheadditionalAttributesmayeither​

 

be drawn from the Data Dictionary in PS3.6, or may be Private Attributes. The enumeration of​

 

permittedAttributevaluesorTemplatesshallbeasubsetofthosepermittedintherelatedStandard​

 

SOP Class. Since the semantics of the related Standard SOP Class may be modified by the​

 

additional Attributes, a Specialized SOP Class utilizes a Privately Defined UID that differs from​

 

the UID for the related Standard SOP Class.​

 

 

Note​

 

 

1.​Since a Specialized SOP Class has a different UID than a Standard or Standard​

 

Extended SOP Class, other DICOM implementations may not recognize the​

 

SpecializedSOPClass.Becauseofthislimitation,aSpecializedSOPClassshould​

 

only be used when a Standard or Standard Extended SOP Class would not be​

 

appropriate. Before different implementations can exchange Instances in a​

 

 

Specialized SOP Class, the implementations must agree on the UID, content (in​

 

particular the additional Type 1, 1C, 2, and 2C Attributes), and semantics of the​

 

Specialized SOP Class. A Specialized SOP Class may be used to create a new or​

 

experimental SOP Class that is closely related to a Standard SOP Class.​

 

 

2.​TheAssociationNegotiationforaSpecializedSOPClassmayincludeaSOPClass​

 

Common Extended Negotiation Sub-Item (as defined in PS3.7) for identification of​

 

the Service Class and of the Related General SOP Class from which it was​

 

 

specialized. This may allow a receiving application, without prior agreement on the​

 

Specialized SOP Class IOD, to process Instances of that class as if they were​

 

instances of a Related General SOP Class.​

 

Private SOP Class​

A SOP Class that is not defined in the DICOM Standard, but is published in an implementation's​

 

Conformance Statement.​

 

 

Note​

 

 

Since a Private SOP Class is not defined in the DICOM Standard, other DICOM​

 

 

implementations may not recognize the Private SOP Class. Because of this limitation,​

 

a Private SOP Class should only be used when a Standard or Standard Extended SOP​

 

Class would not be appropriate. In order for different implementations to exchange​

 

Instances in a Private SOP Class, the implementations must agree on the UID, content​

 

(in particular the Type 1, 1C, 2, and 2C Attributes), and semantics of the Private SOP​

 

Class. A Private SOP class may be used to create a totally new or experimental SOP​

 

Class.​

 

Standard Attribute​

An Attribute defined in the Data Dictionary in PS3.6.​

 

Private Attribute​

An Attribute that is not defined in the DICOM Standard.​

 

Standard Application Profile​

An Application Profile defined in the DICOM Standard that is used in an implementation with no​

 

modifications.​

 

Augmented Application Profile​

An Application Profile derived from a Standard Application Profile by incorporating support for​

 

additional Standard or Standard Extended SOP Classes.​

 

Private Application Profile​

An Application Profile that is not defined in the DICOM Standard, but is published in an​

 

implementation's Conformance Statement.​

 

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DICOM PS3.2 2020a - Conformance​

Security Profile​

A mechanism for selecting an appropriate set of choices from the Parts of the DICOM Standard​

 

along with corresponding security mechanisms (e.g., encryption algorithms) for the support of​

 

security facilities.​

Transformation of DICOM SR to​

A mechanism for mapping and transforming DICOM SR objects to HL7 CDA documents.​

CDA​

 

- Standard -​

DICOM PS3.2 2020a - Conformance​ Page 43​

4 Symbols and Abbreviations​

The following symbols and abbreviations are used in this Part.​

ACR​

American College of Radiology​

ACSE​

Association Control Service Element​

AE​

Application Entity​

ANSI​

American National Standards Institute​

AP​

Application Profile​

API​

Application Programming Interface​

ASCII​

American Standard Code for Information Interchange​

CEN TC251​Comite Europeen de Normalisation-Technical Committee 251-Medical Informatics​

DICOM​

Digital Imaging and Communications in Medicine​

DIMSE​

DICOM Message Service Element​

DIMSE-C​

DICOM Message Service Element-Composite​

DIMSE-N​

DICOM Message Service Element-Normalized​

FSC​

File-set Creator​

FSR​

File-set Reader​

FSU​

File-set Updater​

HISPP​

Healthcare Informatics Standards Planning Panel​

HL7​

Health Level 7​

IE​

Information Entity​

IEEE​

Institute of Electrical and Electronics Engineers​

IOD​

Information Object Definition​

ISO​

International Standards Organization​

ISP​

International Standardized Profile​

JIRA​

Japan Medical Imaging and Radiological Systems Industries Association​

MSDS​

Healthcare Message Standard Developers Sub-Committee​

NEMA​

National Electrical Manufacturers Association​

OSI​

Open Systems Interconnection​

PDU​

Protocol Data Unit​

REST​

Representational State Transfer​

RESTful​

A RESTful Web service is a Web service implemented using REST architecture and HTTP (see http://www.ics.uci.edu/​

 

~fielding/pubs/dissertation/fielding_dissertation.pdf)​

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DICOM PS3.2 2020a - Conformance​

RWA​ Real-World Activity​

SCP​ Service Class Provider​

SCU​ Service Class User​

SOP​ Service-Object Pair​

STOW-RS​ STore Over the Web by RESTful Services​

TCP/IP​ Transmission Control Protocol/Internet Protocol​

UID​ Unique Identifier​

UML​ Unified Modeling Language​

WADO-RS​ Web Access to DICOM Objects by RESTful Services​

WADO-URI​ Web Access to DICOM Objects by URI​

- Standard -​

DICOM PS3.2 2020a - Conformance​

Page 45​

5 Conventions​

5.1 Application Data Flow Diagram​

InaConformanceStatement,therelationshipsbetweenReal-WorldActivitiesandApplicationEntitiesareillustratedbyanApplication​

Data Flow Diagram.​

5.1.1 Application Entity​

An Application Entity is depicted as a box in an Application Data Flow Diagram, shown in Figure 5.1-1​

Application

Entity

Figure 5.1-1. Application Entity Convention​

5.1.2 Real-World Activity​

A Real-World Activity is depicted as a circle in an Application Data Flow Diagram, shown in Figure 5.1-2.​

Real-World

Activity

Figure 5.1-2. Real-World Activity Convention​

Circles representing multiple Real-World Activities may overlap, indicating a degree of overlap in the Real-World Activities.​

5.1.3 Local Relationships​

A relationship between a local Real-World Activity and an Application Entity is depicted within an Application Data Flow Diagram by​ placingthelocalReal-WorldActivitytotheleftoftherelatedApplicationEntitywithadashedlinebetweenthemasshowninFigure5.1-​ 3.​

Local

Real-World

Application

Activity

Entity

Figure 5.1-3. Local Relationship Convention​

An Application Entity may be associated with multiple Real-World Activities.​

A Real-World Activity may be associated with multiple Application Entities.​

5.1.4 Network-Associations​

An association between a local Application Entity and a remote Application Entity over a network supporting a remote Real-World​ Activity is depicted within an Application Data Flow Diagram by placing the remote Real-World Activity to the right of the related local​ Application Entity with one or two arrows drawn between them as shown in Figure 5.1-4. The dashed line represents the DICOM​

- Standard -​