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1、TECHNICAL REPORT IEC 61852 First edition 1998-04 Medical electrical equipment Digital imaging and communications in medicine (DICOM) Radiotherapy objects Reference number IEC 61852:1998(E) Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employee
2、s/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from IHS -,-,- Numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. Consolidated publications Consolidated versions of so
3、me IEC publications including amendments are available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Validity of this publication The technical con
4、tent of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to the date of the reconfirmation of the publication is available in the IEC catalogue. Information on the subjects under consideration and work in prog
5、ress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is to be found at the following IEC sources: IEC web site* Catalogue of IEC publications Published yearly with regular updates (On-line catalogue)* IEC Bulletin Available both
6、at the IEC web site* and as a printed periodical Terminology, graphical and letter symbols For general terminology, readers are referred to IEC 60050: International Electrotechnical Vocabulary (IEV). For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are
7、 referred to publications IEC 60027: Letter symbols to be used in electrical technology, IEC 60417: Graphical symbols for use on equipment. Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols for diagrams. * See web site address on title page. Copyright International
8、Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from IHS -,-,- TECHNICAL REPORT TYPE 3 IEC 61852 First edition 1998-04 Medical electri
9、cal equipment Digital imaging and communications in medicine (DICOM) Radiotherapy objects Commission Electrotechnique Internationale International Electrotechnical Commission PRICE CODE IEC 1998 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or
10、by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission3, rue de Varemb Geneva, Switzerland Telefax: +41 22 919 0300e-mail: inmailiec.ch IEC web site http: /www.iec.ch X For price, see c
11、urrent catalogue Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 61852 IEC:1998(E) CONTENTS P
12、age FOREWORD .3 INTRODUCTION .5 Clause Scope6 A.URT IMAGE INFORMATION OBJECT DEFINITION 11 A.U.1RT Image IOD Description 11 A.U.2RT Image IOD entity-relationship model 11 A.U.3RT Image IOD Module Table.12 A.VRT DOSE INFORMATION OBJECT DEFINITION13 A.V.1RT Dose IOD Description 13 A.V.2RT dose IOD ent
13、ity-relationship model 13 A.V.3RT dose IOD Module Table .14 A.WRT STRUCTURE SET INFORMATION OBJECT DEFINITION.14 A.W.1 RT structure set IOD description .14 A.W.2 RT Structure Set IOD entity-relationship model15 A.W.3 RT Structure Set IOD Module Table 15 A.XRT PLAN INFORMATION OBJECT DEFINITION.16 A.
14、X.1RT Plan IOD Description .16 A.X.2RT Plan IOD entity-relationship model .16 A.X.3RT Plan IOD Module Table17 C.7.3.1.1.1 Modality18 C.8.XRadiotherapy.18 C.8.X.1 RT Series Module18 C.8.X.2 RT Image Module20 C.8.X.3 RT Dose Module27 C.8.X.4 RT DVH Module 31 C.8.X.5 Structure Set Module.33 C.8.X.6 ROI
15、 Contour Module36 C.8.X.7 RT Dose ROI Module.38 C.8.X.8 RT ROI Observations Module 39 C.8.X.9 RT General Plan Module42 C.8.X.10 RT Prescription Module .44 C.8.X.11 RT Tolerance Tables Module.46 C.8.X.12 RT Patient Setup Module.48 C.8.X.13 RT Fraction Scheme Module50 C.8.X.14 RT Beams Module.54 C.8.X
16、.15 RT Brachy Application Setups Module68 C.8.X.16 Approval Module78 Part 4 Addendum Radiotherapy Storage SOP Classes .79 B.5 STANDARD SOP CLASSES.79 Part 6 Addendum Radiotherapy Data Dictionary.80 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS
17、 Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from IHS -,-,- 61852 IEC:1998(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION MEDICAL ELECTRICAL EQUIPMENT DIGITAL IMAGING AND COMMUNICATIONS IN MEDICINE (DICOM) RAD
18、IOTHERAPY OBJECTS FOREWORD 1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning s
19、tandardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparat
20、ory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organi
21、zations. 2)The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3)The documents produced have the fo
22、rm of recommendations for international use and are published in the form of standards, technical reports or guides and they are accepted by the National Committees in that sense. 4)In order to promote international unification, IEC National Committees undertake to apply IEC International Standards
23、transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5)The IEC provides no marking procedure to indicate its approval and cannot be
24、rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such
25、patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical report of one of the following types: type 1, when the required support cannot be obtained for the publicatio
26、n of an International Standard, despite repeated efforts; type 2, when the subject is still under technical development or where for any other reason there is the future but no immediate possibility of an agreement on an International Standard; type 3, when a technical committee has collected data o
27、f a different kind from that which is normally published as an International Standard, for example “state of the art“. Technical reports of types 1 and 2 are subject to review within three years of publication to decide whether they can be transformed into International Standards. Technical reports
28、of type 3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. IEC 61852, which is a technical report of type 3, has been prepared by subcommittee 62C: Equipment for radiotherapy, nuclear medicine and radiation dosimetry, of IEC technical
29、 committee 62: Electrical equipment in medical practice. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from
30、IHS -,-,- 4 61852 IEC:1998(E) The text of this technical report is based on the following documents: Committee draftReport on voting 62C/183/CDV62C/201A/RVC Full information on the voting for the approval of this technical report can be found in the report on voting indicated in the above table. Thi
31、s report has been developed in conjunction with IEC subcommittee 62C, CEN TC251 and the AAPM. ACR (the American College of Radiology) and NEMA (the National Electrical Manufacturers Association) formed a joint committee to develop a standard for digital imaging and communications in medicine. This D
32、ICOM standard was developed according to the NEMA Procedures. This report is supplement 11 to the DICOM standard. It is an extension to Part 3, 4 and 6 of the published DICOM standard which consists of the following parts: Part 1Introduction and Overview Part 2Conformance Part 3Information Object De
33、finitions Part 4Service Class Specifications Part 5Data Structures and Encoding Part 6Data Dictionary Part 7Message Exchange Part 8Network Communication Support for Message Exchange Part 9Point-to-Point Communication Support for Message Exchange Part 10Media Storage and File Format Part 11Media Stor
34、age Application Profiles Part 12Media Formats and Physical Media Part 13Print Management Point-to-Point Communication Support These parts are independent but related documents. Their development level and approval status may differ. Additional parts may be added to this multi-part standard. PS3.1 sh
35、ould be used as the base reference for the current parts of this standard. A bilingual version of this technical report may be issued at a later date. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not fo
36、r Resale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from IHS -,-,- 61852 IEC:1998(E) 5 INTRODUCTION This supplement to the DICOM Standard defines a number of information objects applicable to the domain of radiation oncology. The intent of these objects is to sup
37、port the transfer of radiotherapy-related data between devices found within and outside a radiotherapy department. They are not, however, intended to support the management of the transferred data, a function which may be addressed in future revisions of the DICOM Standard. This task of process mana
38、gement has not been addressed in the current draft due to the absence of a consistent process model for a radiotherapy department, especially in an international context. As a result, the radiotherapy information objects contain a large number of conditional and optional data elements. Essentially t
39、he objects are intended to be used as “containers” for related radiotherapy data, with data being added as the object flows through the department. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for R
40、esale, 03/08/2007 05:05:19 MSTNo reproduction or networking permitted without license from IHS -,-,- 6 61852 IEC:1998(E) MEDICAL ELECTRICAL EQUIPMENT DIGITAL IMAGING AND COMMUNICATIONS IN MEDICINE (DICOM) RADIOTHERAPY OBJECTS The following text extends and/or amends Part 3 of DICOM. Part 3: Addendum
41、 radiotherapy information object definitions 1 Scope This report specifies the following information objects: 1) A DICOM Image Information Object for Radiotherapy. It specifies the semantic content of RT Images. It is commonly abbreviated to the RT Image IOD. It also includes the corresponding Stora
42、ge SOP Class so that this IOD can be used in Network and Media Storage exchanges. The scope of the RT Image IOD is radiotherapy images which have been obtained on a conic imaging geometry, such as that found on conventional simulators and portal imaging devices. It can also be used for calculated im
43、ages using the same geometry, such as digitally reconstructed radiographs (DRRs). 2) A DICOM Dose Information Object for Radiotherapy. It specifies the semantic content of RT Doses. It is commonly abbreviated to the RT Dose IOD. It also includes the corresponding Storage SOP Class so that this IOD c
44、an be used in Network and Media Storage exchanges. The scope of the RT Dose IOD is radiotherapy dose distributions which have been calculated on a radiotherapy treatment planning system, represented as two- or three- dimensional dose grids, groups of named or unnamed dose points, isodose curves, and
45、 dose-volume histograms (DVHs). 3) A DICOM Structure Set Information Object for Radiotherapy. It specifies the semantic content of RT Structure Sets. It is commonly abbreviated to the RT Structure Set IOD. It also includes the corresponding Storage SOP Class so that this IOD can be used in Network a
46、nd Media Storage exchanges. The scope of the RT Structure Set IOD is radiotherapy patient-related structures which have been identified on devices such as CT scanners, virtual simulation workstations, or treatment planning systems. 4) A DICOM Plan Information Object for Radiotherapy. It specifies th
47、e semantic content of RT (Treatment) Plans. It is commonly abbreviated to the RT Plan IOD. It also includes the corresponding Storage SOP Class so that this IOD can be used in Network and Media Storage exchanges. The scope of the RT Plan IOD is geometric and dosimetric data specifying a course of ex
48、ternal beam and/or brachytherapy treatment. This report includes a number of addenda to existing Parts of DICOM; therefore the reader should have a working understanding of the Standard. 1.Part 3 Addenda (Extension to the body, Annex A, B, C and D) 2.Part 4 Addenda (Extension to Annex B) 3.Part 6 Addenda (Extension to Section 6 and Annex A) Add to Section 2 2 Normative references IEC 61217:1996, Radiotherapy equipment Coordinates, movements and scales ICRU Report 50, Prescribing, Recording, and Reporting Photon Bea