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BS EN IEC 62985:2019:2022 Edition

BS EN IEC 62985:2019:2022 Edition

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Corrigendum 1. Methods for calculating size specific dose estimates (SSDE) for computed tomography

Published By Publication Date Number of Pages
BSI 2022 28
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PDF Pages PDF Title
2 undefined
7 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
8 English
CONTENTS
10 FOREWORD
12 INTRODUCTION
13 1 Scope
2 Normative references
14 3 Terms and definitions
15 4 Verification of method used to calculate DW(z)
4.1 General
16 4.2 Characteristics of the water phantoms
4.3 Characteristics of the anthropomorphic phantom
4.4 Generation of DW,REF(z) for the water phantoms
17 4.5 Verification of DW,REF for the water phantoms
4.6 Generation of DW,IMP for the water phantoms
4.7 Verification of DW,IMP(z) against DW,REF(z) for the water phantoms
4.8 Generation of DW,REF(z) for the anthropomorphic phantom
Table 1 ā€“ Anthropomorphic phantom regions to be scanned
18 4.9 Generation of DW,IMP(z) for the anthropomorphic phantom
4.10 Verification of DW,IMP(z) against DW,REF(z) for the anthropomorphic phantom
5 Requirements and limitations
5.1 Calculation of ssde and DW for ct scanners and RDIMS
5.2 Pre-scan display of ssde for ct scanners
5.3 Post-scan updating of ssde and DW for ct scanners
19 5.4 Pre and post-scan display of ssde and DW for ct scanners
5.5 Post-scan recording of ssde and DW for ct scanners
5.6 Limitations of calculation and display of ssde and DW
20 5.7 Requirements for identification of limitations in the accompanying documents
5.8 Updating ssde conversion factors, ʒ
21 Annex A (normative)Ssde conversion factors
A.1 Clarification regarding the use of effective diameter versus DW
A.2 Equation for determination of ssde conversion factor
Table A.1 ā€“ Ssde Conversion factor as a function of DW
22 Figure A.1 ā€“ Visualization of ((Dw) versus DW for the bodyand head parameters provided in Table A.1
23 Annex B (normative)Language regarding the general limitations of the ssde methodologyfor use in the accompanying documents
24 Annex C (informative)Estimates of the magnitude of uncertaintiesfrom special clinical scenarios
C.1 General
C.2 Neck included in scanned anatomy
C.3 Range of scan projection radiograph exceeded
C.4 Single or bilateral extremities scanned
25 C.5 Patient not positioned at the centre of rotation along the source/detector direction
C.6 Patient anatomy outside the scan field of view
C.7 Foreign objects within the scanned projection radiograph or scan volume
26 Bibliography
27 Index of defined terms used in this document

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BS EN IEC 62985:2019
$142.49