Материал: part17

1. Set-up acquisition

2. Perform Acquisition

3. Create Dose Report

4. Verify, Add Comments to Dose Report

5.Send Images

6.Send Dose Report

7. Retrieve Dose Report

Figure AA.3-1. Basic Dose Reporting​

InthisusecasetheusersetsuptheAcquisitionModality,andperformsthestudy.TheModalitycapturestheirradiationeventexposure​ information, and encodes it together with the accumulated values in a Dose Report. The Modality may allow the user to review the​ dose report, and to add comments. The acquired images and Dose Report are sent to a Long-Term Storage system (e.g., PACS)​ that is capable of storing Dose Report objects.​

ADisplayStationmayretrievetheDoseReportfromtheStoragesystem,anddisplayit.BecausetheX-RayRadiationDoseSRobject​ is a proper subset of the Enhanced SR object, the Display Station may render it using the same functionality as used for displaying​ any Enhanced SR object.​

AA.3.2 Dose Reporting For Non-digital Imaging​

The Dose Report may also be used for image acquisitions using non-digital Acquisition Modalities. See Figure AA.3-2.​

1. Set-up acquisition

2. Perform Acquisition

3. Enter Dose Information

4. Create Dose Report

5. Send Dose Report

Figure AA.3-2. Dose Reporting for Non-Digital Imaging​

In this use case the user may manually enter the irradiation event exposure information into a Dose Reporting Station, possibly tran-​ scribing it from a dosimeter read-out display. The station encodes the data in a Dose Report and sends it to a Storage system. The​ same Dose Reporting Station may be used to support several acquisition modalities.​

This case may be useful in film-only radiography environments, or in mixed film and digital environments, where the DICOM X-Ray​ Radiation Dose SR Object provides a standard format for recording and storing irradiation events.​

Note that in a non-PACS environment, the Dose Reports may be sent to a Long-Term Storage function built into a Radiation Safety​ workstation or information system.​

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AA.3.3 Dose Reporting Post-processing​

AspecializedRadiationSafetyworkstationthemaycontributetotheprocessofdosereportingintermsofmoreelaboratecalculations​ orgraphicaldosedatadisplays,orbyaggregatingdosedataovermultiplestudies.SeeFigureAA.3-3.TheRadiationSafetyworkstation​ may or may not be integrated with the Long-Term Storage function in a single system; such application entity architectural decisions​ are outside the scope of DICOM, but DICOM services and information objects do facilitate a variety of possible architectures.​

1. Send Dose Report

2. Retrieve Dose Reports

3. Send Regulatory Dose Reports

4. Store Cumulative Dose Report

5.Retrieve Referenced Images

6.Create Dose Map

7.Store Dose Map

Figure AA.3-3. Dose Reporting Post-Processing​

The Radiation Safety workstation may be able to create specific reports to respond to dose registry requirements, as established by​ local regulatory authorities. These reports would generally not be in DICOM format, but would be generated from the data in DICOM​ X-Ray Radiation Dose SR objects.​

The Radiation Safety workstation may also be used to generate more elaborate reports on patient applied dose. The workstation may​ retrieve the Dose Reports for multiple procedures performed on a particular patient. A report of the cumulative dose for a specified​ time period, or for a visit/admission, may be generated, encoded as a DICOM Dose Report, and stored in the Long-Term Storage​ system. Any such further reports will be stored in addition to the "basic report".​

Note that such cumulative Dose Reports may describe irradiation events that are also documented in other Dose Reports. The as-​ signment of a UID to each irradiation event allows the application to identify unique irradiation events that may be reported in multiple​ objects. The structure of the X-Ray Radiation Dose SR object also allows a cumulative report to reference the contributing report​ objects using the Predecessor Documents Sequence (0040,A360) Attribute.​

AnadvancedapplicationmaybeabletousetheDoseReportdata,potentiallysupplementedbythedataintheimageobjectsreferenced​ in the Dose Report, to create a Dose Map that visualizes applied dose. Such a Dose Map may be sent to the Long-Term Storage​ system using an appropriate object format.​

Other purposes of the Radiation Safety workstation may include statistical analyses over all Dose Report Objects in order to gain in-​ formation for educational or quality control purposes. This may include searches for Reports performed in certain time ranges, or with​ specific equipment, or using certain protocols.​

AA.3.4 Dose Reporting Workflow Management​

The dose reporting workflow may be managed using the same DICOM services used for managing the imaging workflow.​

Inparticular,aDoseReportproducedforanAcquisitionModalityPerformedProcedureStepcanbeidentifiedintheMPPSReferenced​

Non-Image Composite SOP Instance Sequence (0040,0220).​

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BB Printing (Informative)​

BB.1 Example of Print Management SCU Session (Informative)​

BB.1.1 Simple Example​

This example of a Print Management SCU Session is provided for informational purposes only. It illustrates the use of one of the​ Basic Print Management Meta SOP Classes.​

Example BB.1-1. Simple Example of Print Management SCU Session​

A-ASSOCIATE

N-GET (PRINTER SOP Instance) N-CREATE (Film Session SOP Instance) for (each film of film session)

{

N-CREATE (Film Box SOP Instance) for (each image of film)

{

N-SET (Image Box SOP Instance that encapsulates a PREFORMATTED IMAGE SOP Instance)

}

if (no collation)

{

N-ACTION (PRINT, Film Box SOP Instance)

N-DELETE (Film Box SOP Instance)

}

}

if (collation)

{

N-ACTION (PRINT, Film Session SOP Instance)

N-DELETE (Film Session SOP Instance)

}

N-EVENT-REPORT (PRINTER SOP Instance)

A-RELEASE

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BB.1.2 Advanced Example (Retired)​

This section was previously defined in DICOM. It is now retired. See PS3.4-1998.​

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