1、BRITISH STANDARD BS EN 61217:1996 +A2:2008 Radiotherapy equipment Coordinates, movements and scales ICS 11.040.50; 13.280 BS EN 61217:1996+A2:2008 This British Standard was published under the authority of the Standards Board and comes into effect on 15 June 1997 BSI 2008 ISBN 978 0 580 64267 8 Nati
2、onal foreword This British Standard is the UK implementation of EN 61217:1996+A2:2008. It is identical with IEC 61217:1996, incorporating amendment 2:2007. It supersedes BS EN 61217:1996+A1:2001 which will be withdrawn on 1 February 2011. The start and finish of text introduced or altered by amendme
3、nt is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“. The UK participation in its preparation was entrusted by Technical Committee CH/62, Electromedical equipment in medical pra
4、ctice, to Subcommittee CH/62/3, Equipment for radiotherapy, nuclear medicine and radiation dosimetry. A list of organizations represented on this subcommittee can be obtained on request to its secretary. A Rationale for the changes in the IEC scale is given in Annex C. It is considered that a knowle
5、dge of the reasons for the changes will not only facilitate the proper application of the standard, but will expedite any subsequent revision. This annex does not form a normative part of the standard. Textual errors. When implementing the English language version of EN 61217 as the national standar
6、d, the textual errors listed below were discovered. They have been reported to the European Committee for Electrotechnical Standardization (CENELEC) in a proposal to amend the text of the European Standard. In Figure 16i, the entry in the column headed Edge X1 against element 06 should read “05,5” a
7、nd not “05,0”. In the row in Figure 16k, the second “05” should be “06”. In Figure 16k the column headings “Size FX”, “Edge X1” and “Edge X2” should be “Size FY”, “Edge Y1” and “Edge Y2” respectively. In Figure 16k, the entry in the column headed Edge Y2 against element 06 should read “+5,5” and not
8、 “05,5”. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication Amd. No. Date Comments
9、 13331 15 February 2002 See national foreword Implementation of IEC amendment 2:2007 with CENELEC endorsement A2:2008, and alignment of BSI and CENELEC publication dates 30 September 2008EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61217:1996+A2 February 2008 ICS 11.040.50; 13.280 Descriptor
10、s: Electromedical equipment, radiotherapy, movements, scales English version Radiotherapy equipment Co-ordinates, movements and scales (IEC 61217:1996) Appareils utiliss en radiothrapie Coordonnes, mouvements et chelles (CEI 61217:1996) Strahlentherapie-Einrichtungen Koordinaten, Bewegungen und Skal
11、en (IEC 61217:1996) This European Standard was approved by CENELEC on1996-07-02. members are bound to comply with the CEN/CENELEC InternalRegulations which stipulate the conditions for giving this European Standard thestatus of a national standard without any alteration. Up-to-date lists and bibliog
12、raphical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility
13、of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherland
14、s, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright
15、 reserved to CENELEC members Ref. No. EN 61217:1996 E CENELEC2 Foreword The text of document 62C/143/FDIS, future edition 1 of IEC 1217, prepared by SC 62C, Equipment for radiotherapy, nuclear medicine and radiation dosimetry, of IEC TC 62, Electrical equipment in medical practice, was submitted to
16、the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61217 on 1996-07-02. The following dates were fixed: Endorsement notice The text of the International Standard IEC 1217:1996 was approved by CENELEC as a European Standard without any modification. Foreword to amendment A1 The text of d
17、ocument 62C/279/FDIS, future amendment 1 to IEC 61217:1996, prepared by SC 62C, Equipment for radiotherapy, nuclear medicine and radiation dosimetry, of IEC TC 62, Electrical equipment in medical practice, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to
18、EN 61217:1996 on 2000-12-01. The following dates were fixed: Endorsement notice The text of amendment 1:2000 to the International Standard IEC 61217:1996 was approved by CENELEC as an amendment to the European Standard without any modification. latest date by which the EN has to be implemented at na
19、tional level by publication of an identical national standard or by endorsement (dop) 1997-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1997-05-01 latest date by which the amendment has to be implemented at national level by publication of an i
20、dentical national standard or by endorsement (dop) 2001-09-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2003-12-01 Foreword to amendment A2 The text of document 62C/418/CDV, future amendment 2 to IEC 61217:1996, prepared by SC 62C, Equipmen
21、t for radiotherapy, nuclear medicine and radiation dosimetry, of IEC TC 62, Electrical equipment in medical practice, was submitted to the IEC-CENELEC parallel Unique Acceptance Procedure and was approved by CENELEC as amendment A2 to EN 61217:1996 on 2008-02-01. The following dates were fixed: late
22、st date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-11-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2011-02-01 _ Endorsement notice The text of
23、 amendment 2:2007 to the International Standard IEC 61217:1996 was approved by CENELEC as an amendment to the European Standard without any modification. _ BSI 2008 BS EN 61217:1996+A2:20083 Page Annex D (informative) Summary of additions and changes to scale statements in IEC 601-2-1, IEC 601-2-11,
24、 IEC 976 and IEC 977 Annex E (informative) Terminology Annex F (informative) Coordinate transformations between IEC and DICOM PATIENT coordinates Figure 1a Coordinate systems (see 2.1.2) with all angular positions set to zero 18 Figure 1b Translation of origin Id along Xm, Ym, Zm and rotation around
25、 axis Zd parallel to Zm (see 2.1.4)1 9 Figure 1c Translation of origin Id along Xm, Ym, Zm and rotation around axis Yd parallel to Ym (see 2.1.4)1 9 Figure 2 X Y Z right-hand coordinate mother system (isometric drawing), showing , , directions of positive rotation for daughter system (see 2.2)2 0 Fi
26、gure 3 Hierarchical structure among coordinate systems (see 2.1.3 and 2.1.5)2 1 Figure 4 Rotation ( g=1 5 ) of GANTRY coordinate system Xg, Yg, Zg in fixed coordinate system Xf, Yf, Zf (see 2.3)2 2 Figure 5 Rotation ( b=1 5 ) of BEAM LIMITING DEVICE or DELINEATOR coordinate system Xb, Yb, Zb in GANT
27、RY coordinate system Xg, Yg, Zg and resultant rotation of RADIATION FIELD or DELINEATED RADIATION FIELD of dimensions FX and FY (see 2.4)2 3 Figure 6 Displacement of image intensifier type X-RAY IMAGE RECEPTOR coordinate system origin, Ir, in GANTRY coordinate system, by Rx = 8, Ry = + 10, Rz = 40 (
28、see 2.6)2 4 Figure 7 Rotation ( w=27 0 ) and translation of WEDGE FILTER coordinate system Xw, Yw, Zw in BEAM LIMITING DEVICE coordinate system Xb, Yb, Zb, the BEAM LIMITING DEVICE coordinate system having ar o t a t i o n ( b) of 345 (see 2.5)2 5 Figure 8 Rotation ( r=90 ) and displacement of RADIO
29、GRAPHIC CASSETTE type X-RAY IMAGE RECEPTOR coordinate system Xr, Yr, Zr in GANTRY coordinate system Xg, Yg, Zg (see 2.6)2 6 Figure 9 Rotation ( s=345 ) of PATIENT SUPPORT coordinate system Xs, Ys, Zs in fixed coordinate system Xf, Yf, Zf (see 2.7)2 7 Figure 10 Table top eccentric coordinate system r
30、otation e in PATIENT SUPPORT coordinate system which has been rotated by s in the fixed coordinate system with e=3 60 s (see 2.8 and 2.9)2 8 Contents Page Foreword 2 Introduction 5 1 Scope and object 6 2 Coordinate systems 6 2.1 General rules 6 2.2 Fixed reference system (“f”) (Figure 1a) 7 2.3 GANT
31、RY coordinate system (“g”) (Figure 4) 8 2.4 BEAM LIMITING DEVICE or DELINEATOR coordinate system (“b”) (Figure 5) 8 2.5 WEDGE FILTER coordinate system (“w”) (Figure 7) 8 2.6 X-RAY IMAGE RECEPTOR coordinate system (“r”) (Figure 6 and Figure 8) 9 2.7 PATIENT SUPPORT coordinate system (“s”) (Figure 9)
32、9 2.8 Table top eccentric rotation coordinate system (“e”) (Figure 10 and Figure 11) 9 2.9 Table top coordinate system (“t”) (Figures 10, 11, 18 and 19) 10 3 Identification of scales and digital DISPLAYS 11 4 Designation of EQUIPMENT movements 11 5E QUIPMENT zero positions 12 6 List of scales, gradu
33、ations, directions and DISPLAYS 13 6.1 Rotation of the GANTRY (Figure 14a and Figure 14b) 13 6.2 Rotation of the BEAM LIMITING DEVICE or DELINEATOR (Figure 15a and Figure 15b) 13 6.3 Rotation of the WEDGE FILTER (Figure 7 and Figure 14a) 13 6.4 RADIATION FIELD or DELINEATED RADIATION FIELD 13 6.5 PA
34、TIENT SUPPORT ISOCENTRIC rotation 15 6.6 Table top eccentric rotation 15 6.7 Table top linear and angular movements 15 6.8 X-RAY IMAGE RECEPTOR movements 16 6.9 Other scales 17 Annex A (informative) Examples of coordinate transformations between ndividual coordinate systems Annex B (informative) Bib
35、liography Annex C (informative) Rationale for changes in IEC scales i BSI 2008 52 58 58 60 61 62 BS EN 61217:1996+A2:20084 Page Figure 16b Rectangular and asymmetrical in Yb RADIATION FIELD or DELINEATED RADIATION FIELD, viewed from RADIATION SOURCE (see 6.4)4 0 Figure 16c Rectangular and asymmetric
36、al in Xb RADIATION FIELD or DELINEATED RADIATION FIELD, viewed from RADIATION SOURCE (see 6.4)4 1 Figure 16d Rectangular and asymmetrical in Xb and Yb RADIATION FIELD or DELINEATED RADIATION FIELD, viewed from RADIATION SOURCE (see 6.4)4 2 Figure 16e Rectangular and symmetrical RADIATION FIELD, rota
37、ted by b=3 0 , viewed from RADIATION SOURCE (see 6.4)4 3 Figure 16f Rectangular and asymmetrical in Yb RADIATION FIELD, rotated by b=30 , viewed from RADIATION SOURCE (see 6.4)4 4 Figure 16g Rectangular and asymmetrical in Xb RADIATION FIELD, rotated by b=30 , viewed from RADIATION SOURCE (see 6.4)4
38、 5 Figure 16h Rectangular and asymmetrical in Xb and Yb RADIATION FIELD, rotated by b=3 0 ,v i e w e d f r o m RADIATION SOURCE (see 6.4)4 6 Figure 16i Irregular multi-element (multileaf) contiguous RADIATION FIELD, viewed from RADIATION SOURCE, with element motion in Xb direction (see 6.4)4 7 Figur
39、e 16j Irregular multi-element (multileaf) two-part RADIATION FIELD, viewed from RADIATION SOURCE, with element motion in Xb direction (see 6.4)4 8 Figure 16k Irregular multi-element (multileaf) contiguous RADIATION FIELD, viewed from RADIATION SOURCE, with element motion in Yb direction (see 6.4)4 9
40、 Figure 17a PATIENT coordinate system (PATIENT is supine) 50 Figure 17b Rotation of PATIENT coordinate system 50 Figure F.1 Coordinate transformations between IEC and DICOM PATIENT coordinates Table 1 EQUIPMENT movements and designations 12 Table 2 Individual coordinate systems 17 Table A.1 Rotation
41、 matrices Page Figure 11a Table top displaced below ISOCENTRE by Tz = 20 cm (see 2.8 and 2.9)2 9 Figure 11b Table top coordinate system d i s p l a c e m e n t T x=+5 , T y=L e+1 0i n PATIENT SUPPORT coordinate system Xs, Ys, Zs rotation ( s=3 30 ) in fixed coordinate system Xf, Yf, Zf (see 2.8 and
42、2.9)2 9 Figure 11c Table top coordinate system rotation ( e=3 0 ) about table top eccentric system. PATIENT SUPPORT rotation ( s = 330 ) in fixed coordinate system Tx = 0, Ty = Le (see 2.8 and 2.9)2 9 Figure 12a Example of BEAM LIMITING DEVICE scale, pointer on mother system (GANTRY), scale on daugh
43、ter system (BEAM LIMITING DEVICE), viewed from isocentre (see 2.1.6.2 and clause 3)3 0 Figure 12b Example of BEAM LIMITING DEVICE scale, pointer on daughter system (BEAM LIMITING DEVICE), scale on mother system (GANTRY), viewed from ISOCENTRE (see 2.1.6.2 and clause 3)3 1 Figure 12c Examples of scal
44、es (see clause 3)3 2 Figure 13a Rotary GANTRY (adapted from IEC 601-2-1) with identification of axes 1 to 8, directions 9 to 13 and dimensions 14 and 15 (see clause 4)3 3 Figure 13b ISOCENTRIC RADIOTHERAPY SIMULATOR or TELERADIOTHERAPY EQUIPMENT, with identification of axes 1; 4 to 6; 19, of directi
45、ons 9 to 12; 16 to 18 and of dimensions 14; 15; 20 to 23 (see clause 4)3 4 Figure 13c View from RADIATION SOURCE of TELERADIOTHERAPY RADIATION FIELD or RADIOTHERAPY SIMULATOR DELINEATED RADIATION FIELD (see clause 4)3 5 Figure 14a Example of ISOCENTRIC TELERADIOTHERAPY EQUIPMENT (see 6.1 and 6.3)3 6
46、 Figure 14b Example of ISOCENTRIC RADIOTHERAPY SIMULATOR EQUIPMENT (see 6.1)3 7 Figure 15a Rotated ( b=3 0 ) symmetrical rectangular RADIATION FIELD (FX FY) at NORMAL TREATMENT DISTANCE, viewed from beyond ISOCENTRE looking toward RADIATION SOURCE (see 6.2)3 8 Figure 15b Same rotated ( b=30 ) symmet
47、rical rectangular radiation field (FX FY) at normal treatment distance, viewed from radiation source (see 6.2)3 8 Figure 16a Rectangular and symmetrical RADIATION FIELD or DELINEATED RADIATION FIELD,v i e w e d f r o m RADIATION SOURCE (see 6.4)3 9 BSI 2008 62 52 BS EN 61217:1996+A2:20085 Introducti
48、on RADIOTHERAPY is performed in medical centres where a variety of EQUIPMENT from different MANUFACTURERS is usually concentrated in the radiotherapy department. In order to plan and simulate the treatment, set up the PATIENT and direct the RADIATION BEAM, such EQUIPMENT can be put in different angular and linear positions and, in the case of MOVING BEAM RADIOTHERAPY, can be rotated and translated during the IRRADIATION OF THE PATIENT. It is essential that the position of the PATIENT, and the dimensions, directions, and qualities of the RADIATION BEAM prescribed
