IEC 61223-2-6 : 2.0

Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope and object<br>2 Normative references<br>3 Terms and definitions<br>4 General aspects of CONSTANCY TESTS<br>&nbsp;&nbsp;4.1 Preconditions<br>&nbsp;&nbsp;4.2 General conditions affecting test procedures<br>&nbsp;&nbsp;4.3 Establishment of BASELINE VALUES<br>&nbsp;&nbsp;4.4 Identification of equipment, instrumentation and <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;test conditions<br>&nbsp;&nbsp;4.5 Scope of the CONSTANCY TESTS<br>&nbsp;&nbsp;4.6 Test equipment, including PHANTOMS and TEST DEVICES<br>&nbsp;&nbsp;4.7 Frequency of CONSTANCY TESTS<br>5 Test methods for CT SCANNERS<br>&nbsp;&nbsp;5.1 Positioning of the PATIENT SUPPORT<br>&nbsp;&nbsp;5.2 PATIENT positioning accuracy<br>&nbsp;&nbsp;5.3 TOMOGRAPHIC SECTION THICKNESS<br>&nbsp;&nbsp;5.4 Dose<br>&nbsp;&nbsp;5.5 NOISE, UNIFORMITY AND MEAN CT NUMBERS<br>&nbsp;&nbsp;5.6 SPATIAL RESOLUTION<br>Annex A (informative) Guidance on action to be taken<br>Annex B (informative) Alternate test methods for SPATIAL <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RESOLUTION<br>Annex C (informative) TOMOGRAPHIC SECTION THICKNESS for <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;helical scanning<br>Annex D (informative) Visual method for LOW CONTRAST <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RESOLUTION<br>Bibliography<br>Index of terms

Abstract

Gives assistance in performing CONSTANCY TESTS on a CT SCANNER. It applies to those components of CT SCANNERS which influence the image quality, PATIENT dose and positioning.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 62