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DICOM PS3.2 2020a - Conformance​

Page 151​

Attribute Name​

Tag​

N-Create​

N-Set​

>>Code Value​

(0008,0100)​

Y​

Y​

>>Coding Scheme Designator​

(0008,0102)​

Y​

Y​

>>Code Meaning​

(0008,0104)​

Y​

Y​

>Quantity Sequence​

(0040,0293)​

Y​

Y​

>>Quantity​

(0040,0294)​

Y​

Y​

>>Measuring Units Sequence​

(0040,0295)​

Y​

Y​

>>>Code Value​

(0008,0100)​

Y​

Y​

>>>Coding Scheme Designator​

(0008,0102)​

Y​

Y​

>>>Code Meaning​

(0008,0104)​

Y​

Y​

Database Updates​

Updates Supply table​ if Coding Scheme​ Designator for Billing​ Item Sequence is​ DICOMRIS_SUPPLY​ and the Code Value​ is a value from this​ Code Set​

The list below details the behavior of DICOMSRV on occurrence of certain MPPS events and with respect to the coercion of attributes​ and duration of storage of MPPS messages:​

•​Reception of a New MPPS Instance - The MPPS message is stored in the database. DICOMSRV will then extract the Patient ID​ (0020,0010)andasmanyAccessionNumbers(0008,0050)asthereareitemsintheScheduledStepAttributeSequence(0040,0270)​ fromtheN-CREATEandtrytomatchthesevaluesagainstthePatientMedicalRecordNumberandoneormoreAccessionNumbers​ in the DICOMRis database. If a non-matching N-CREATE is received, it and any following N-SETs will be marked as exceptions.​ These exceptions can be reconciled using the RisView application. Otherwise, DICOMSRV will:​

•​Update its database with values contained in the N-CREATE per table above.​

•​Update the state of each referenced procedure if so configured.​

•​UpdateofMPPSto'DISCONTINUED'or'COMPLETED'-TheN-SETisstoredinthedatabase.IftheprecedingN-CREATEmatched​ then the following is done:​

•​The attribute values in the N-SET will be used to update the DICOMRis database per table above.​

•​Update the state of each referenced procedure if so configured.​

•​Coercion of Attributes - DICOMSRV will coerce attributes as specified in Table C.8.1-3. This coercion may occur when a given step​ is set to the 'IN PROGRESS' or 'COMPLETED' or 'DISCONTINUED'​

•​Storage Duration for MPPS Messages - MPPS messages are purged from the DICOMRis database after a configurable period of​ time has elapsed since the step has been set to a final state or was last updated.​

Table C.4.2-11. MPPS N-CREATE/N-SET Response Status Reasons​

Service​

Further Meaning​

Error Code​

Reasons​

Status​

 

 

 

Success​

Successful completion of the​

0000​

The response status code and meaning are logged in the job log file.​

 

N-SET or N-CREATE Request​

 

Failure​

Processing Failure​

0110​

Internal error within DICOMSRV. The response status code and​

 

 

 

meaning are logged in the job log file.​

 

Duplicate SOP Instance​

0111​

This status is returned when the SCU has attempted to N-CREATE​

 

 

 

a SOP Instance that has already been created. The response status​

 

 

 

code and meaning are logged in the job log file​

 

No such SOP Instance​

0112​

Status returned when the SCU is trying to SET a SOP instance that​

 

 

 

has not been created. The response status code and meaning are​

 

 

 

logged in the job log file​

 

Missing Attribute​

0120​

This status is returned if an attribute required to be sent in the​

 

 

 

N-CREATEorrequiredtobesentbeforecompletionoftheProcedure​

Step has not been sent. The response status code and meaning are​ logged in the job log file.​

- Standard -​

Page 152​

DICOM PS3.2 2020a - Conformance​

C.4.2.1.4.3 Activity - Configured AE Requests Verification​

C.4.2.1.4.3.1 Description and Sequencing of Activities​

A remote AE sends an Echo Request to verify that DICOMSRV is awake and listening. DICOMSRV responds with success status​ as long as the request can be parsed.​

C.4.2.1.4.3.2 Accepted Presentation Contexts​

TableC.4.2-12.AcceptablePresentationContextsforAEDICOMSRVandReal-WorldActivityConfigured​

AE Requests Verification​

 

 

Presentation Context Table​

 

 

Abstract Syntax​

Transfer Syntax​

Role​

Extended​

Name​

UID​

Name List​

UID List​

 

Negotiation​

 

 

Verification SOP​

1.2.840.10008.1.1​Implicit VR Little Endian​

1.2.840.10008.1.2​

SCP​

None​

Class​

 

Explicit VR Little Endian​

1.2.840.10008.1.2.1​

 

 

 

 

 

 

C.4.2.1.4.3.3 SOP Specific Conformance​

DICOMSRV provides Standard conformance to the DICOM Verification service class.​

C.4.2.1.4.3.4 Presentation Context Acceptance Criterion​

Depending on configuration, DICOMSRV may or may not accept multiple presentation contexts containing the same abstract syntax.​

C.4.2.1.4.3.5 Transfer Syntax Selection Policy​

Transfer Syntaxes in addition to the default Implicit VR Little Endian may be configured for a given Abstract Syntax using DICOM​ Tool's configuration files. When this is done, the first Transfer Syntax encountered in the configuration file, which matches a Transfer​ Syntax offered for a given Presentation Context, will be selected as the accepted Transfer Syntax for that Presentation Context.​

C.4.3 Network Interfaces​

C.4.3.1 Physical Network Interface​

The DICOMRis DICOM applications are indifferent to the physical medium over which TCP/IP executes.​

C.4.3.2 Additional Protocols​

DHCP support can be configured using the Configuration application. If DHCP is not configured a static IP address is assigned.​

If DNS support exists on the local network, then DNS is used for address resolution. The address of the DNS server is retrieved using​ DHCP if the DHCP option is enabled. If DNS is not supported then the hostnames and addresses are configured in the local hosts​ file.​

C.4.3.3 IPv4 and IPv6 Support​

This product supports both IPv4 and IPv6. It does not utilize any of the optional configuration identification or security features of IPv6.​

C.4.4 Configuration​

C.4.4.1 AE Title/Presentation Address Mapping​

The AE Title and port of DICOMSRV is configurable by the user from a GUI-based configuration application. The IP Address is picked​ by the site and may be changed by a Field Engineer.​

- Standard -​

 

DICOM PS3.2 2020a - Conformance​

Page 153​

C.4.4.1.1 Local AE Titles​

 

 

 

Table C.4.2-13. AE Title Configuration Table​

Application Entity​

Default AE Title​

Default TCP/IP Port​

DICOMSRV​

Must be configured​

104​

C.4.4.1.2 Remote AE Title/Presentation Address Mapping​

The AE Titles, host names, port numbers and supported Presentation Contexts of remote applications are configured in file DICOM-​ SRV.cfg. This file is referenced by DICOMTool's software when API calls are made to create Associations to remote AEs​

C.4.4.2 Parameters​

DICOMSRV configuration parameters related to DICOM communications are below. A blank cell under the 'Default Value' heading​ indicates that there is no default value for the specific configuration attribute.​

Table C.4.2-14. Configuration Parameters Table​

Parameter​

Configurable​

General Parameters​

Time-out waiting for acceptance or rejection Response to an​

Yes​

Association Open Request​

 

Time-out waiting for response to TCP/IP connect() request.​

Yes​

Time-outforwaitingfordatabetweenTCP/IPpackets.(Low-level​

Yes​

timeout)​

 

Time-out waiting for a response to a DIMSE Request​

Yes​

Time-out waiting for the next DIMSE Request​

Yes​

Debugging Capabilities​

Hex Dump DIMSE Messages​

Yes​

Hex Dump Association Messages​

Yes​

TCP/IP Settings​

TCP/IP Send Buffer​

Yes​

TCP//IP Receive Buffer​

Yes​

PacketFilter​

Yes​

DICOMSRV Parameters​

Maximum Number of Simultaneous Associations​

Yes​

Maximum Number of Associations to a given device​

Yes​

Maximum PDU size the AE can receive​

Yes​

Maximum PDU size the AE can send​

No​

Validation of DICOM Service Messages​

Yes​

Modality Worklist Parameters​

Maximum Number of Matches for an MWL Request​

Yes​

Default Value​

30 Seconds​

15 Seconds​

15 Seconds​

30 Seconds​

60 Seconds​

Off​

Off​

65535 Bytes​

65535 Bytes​

On. This option enables running of​ tcpdump utility from the command line to​ capture TCP packet headers/contents​

20​

3​

65536 Bytes​

The lower of the value above and the max​ PDU size specified by the Remote AE in​ the Association Request​

Validate messages and log validation​ errors. Do not automatically return error​ for all validation errors​

100​

- Standard -​

Page 154​

DICOM PS3.2 2020a - Conformance​

 

Parameter​

 

Configurable​

Default Value​

Time period after Scheduled Date/Time to leave SPS entries in​

Yes​

2880 min​

the SPS Worklist​

 

 

 

State of Parent Procedure that causes deletion of child SPS​

Yes​

PROCEDURE STARTED​

Entries​

 

 

 

Supported Transfer Syntaxes​

 

Yes​

Explicit VR Little Endian​

 

 

 

Implicit VR Little Endian​

Modality Performed Procedure Step Parameters​

Generate charges based on supplies specified in MPPS​

Yes​

Off​

transactions​

 

 

 

Purge Period for MPPS transactions in final state​

Yes​

30 days​

State to automatically set procedures to for a given AE on receipt​

Yes​

 

of matching N-CREATE​

 

 

 

State to automatically set procedures to for a given AE on receipt​

Yes​

 

of matching N-SET COMPLETED​

 

 

 

State to automatically set procedures to for a given AE on receipt​

Yes​

 

of matching N-SET DISCONTINUED​

 

 

 

Flag specifying support for IHE Trauma cases for a given AE​

Yes​

false​

Patient ID Range to be used for Patient Registration for IHE​

Yes​

 

Trauma case​

 

 

 

Default Procedure Code to be used for orders for IHE Trauma​

Yes​

 

cases​

 

 

 

Supported Transfer Syntaxes​

 

Yes​

Explicit VR Little Endian​

 

 

 

Implicit VR Little Endian​

C.5 Media Interchange​

DICOMSRV does not support Media Storage​

C.6 Support of Character Sets​

DICOMSRV support the following character sets in addition to the default:​

•​ISO_IR 100​

C.7 Security​

DICOMSRV does not support any specific security measures​

C.8 Annexes​

C.8.1 IOD Contents​

C.8.1.1 Created SOP Instances​

DICOMRis does not create SOP instances​

C.8.1.2 Usage of Attributes From Received IODs​

Fields from MPPS such as technique and supplies and how they are used.​

- Standard -​

DICOM PS3.2 2020a - Conformance​

Page 155​

Table C.8.1-1. Attributes in MPPS IOD Used By DICOMRis Applications​

Attribute Name​

Tag​

SOP Common Module​

 

Performed Procedure Step Relationship Module​

 

Scheduled Step Attribute Sequence​

(0040,0270)​

>Accession Number​

(0008,0050)​

Patient ID​

(0010,0020)​

Performed Procedure Step Information​

 

Performed Station AE Title​

(0040,0241)​

Performed Procedure Step Description​

(0040,0254)​

Procedure Code Sequence​

(0008,1032)​

>Code Value​

(0008,0100)​

>Coding Scheme Designator​

(0008,0102)​

>Code Meaning​

(0008,0104)​

Image Acquisition Results​

 

Performed Protocol Code Sequence​

(0040,0260)​

>Code Value​

(0008,0100)​

>Coding Scheme Designator​

(0008,0102)​

>Code Meaning​

(0008,0104)​

Performed Series Sequence​

(0040,0340)​

>Protocol Name​

(0018,1030)​

>Operator's Name​

(0008,1070)​

>Retrieve AE Title​

(0008,0054)​

Billing and Material Management Code​

 

Billing Procedure Step Sequence​

 

>Code Value​

(0008,0100)​

>Coding Scheme Designator​

(0008,0102)​

>Code Meaning​

(0008,0104)​

Film Consumption Sequence​

(0040,0321)​

> Number of Films​

(2100,0170)​

> Medium Type​

(2000,0030)​

> Film Size ID​

(2010,0050)​

Billing Supplies and Devices Sequence​

(0040,0384)​

>Billing Item Sequence​

(0040,0296)​

>>Code Value​

(0008,0100)​

Database Updates​

Theseattributesneedtomatchvalues​ in the DICOMRis database so other​ data contained in MPPS messages​ e.g., Dose and Materials data, can​ updatethedatabaseandbedisplayed​ by the RisView application as​ described below​

This attribute is used by the MppsSrv​ application as a key into the DICOM​ Configuration database to determine​ if the procedure referenced by the​ MPPS message should automatically​ have its state changed​

Values for these attributes are​ accessible using the RisView​ application if they have been stored​

Valuesfortheseattributesarerequired​ if the RisView application is to display​ the protocol used to perform the​ procedure​

Can be displayed by RisView​ application​

Valuesareneededfortheseattributes​ so that the RisView application can​ display actual supplies and film used​ to perform a given procedure rather​ thandefaultvaluesassociatedwiththe​ given procedure in the DICOMRis​ database​

Thevaluesoftheseattributesmayalso​ be used to generate charges if the site​ is configured for charging based on​ MPPS​

- Standard -​

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