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IEC TR 61948-2
Edition 2.0 2019-08
TECHNICAL
REPORT
Nuclear medicine instrumentation – Routine tests –
Part 2: Scintillation cameras and single photon emission computed tomography
imaging
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IEC TR 61948-2
Edition 2.0 2019-08
TECHNICAL
REPORT
Nuclear medicine instrumentation – Routine tests –
Part 2: Scintillation cameras and single photon emission computed tomography
imaging
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 11.040.50 ISBN 978-2-8322-7239-8
– 2 – IEC TR 61948-2:2019 © IEC 2019
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test methods . 10
4.1 General . 10
4.2 Planar imaging . 10
4.2.1 ENERGY WINDOW setting . 10
4.2.2 Background . 10
4.2.3 Constancy of sensitivity . 10
4.2.4 Non-uniformity . 10
4.2.5 PIXEL size . 11
4.2.6 Resolution/linearity . 11
4.3 SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT) . 11
4.3.1 CENTRE OF ROTATION (COR) . 11
4.3.2 Tomographic non-uniformity . 13
4.3.3 SPECT/CT co-registration . 13
4.4 Wholebody imaging . 13
4.5 Frequency of ROUTINE TESTS . 14
Bibliography . 15
Index of defined terms . 16
Figure 1 – Cylindrical phantom. 7
Figure 2 – Geometry of PROJECTIONS . 12
Table 1 – Frequency of ROUTINE TESTS . 14
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR MEDICINE INSTRUMENTATION – ROUTINE TESTS –
Part 2: Scintillation cameras and single photon
emission computed tomography imaging
FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a Technical Report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC TR 61948-2, which is a Technical Report, has been prepared by subcommittee 62C:
Equipment for radiotherapy, nuclear medicine and radiation dosimetry, of IEC technical
committee 62: Electrical equipment in medical practice.
This second edition cancels and replaces the first edition published in 2001. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– 4 – IEC TR 61948-2:2019 © IEC 2019
a) adaptation to apply to the present technology;
b) updating of the test methods to comply with the recent state of the art.
The text of this document is based on the following documents:
Draft TR Report on voting
62C/714/DTR 62C/733/RVDTR
Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
In this document, the following print types are used:
– requirements, compliance with which can be tested, and definitions: roman type;
– notes, explanations, advice, introductions, general statements, exceptions and references: smaller roman type;
– test specifications: italic type;
– TERMS DEFINED IN CLAUSE 3 OF THIS DOCUMENT: SMALL CAPITALS.
The requirements are followed by specifications for the relevant tests.
A list of all parts in the IEC 61948 series, published under the general title Nuclear medicine
instrumentation – Routine tests, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
NUCLEAR MEDICINE INSTRUMENTATION – ROUTINE TESTS –
Part 2: Scintillation cameras and single photon
emission computed tomography imaging
1 Scope
This part of IEC 61948. which is a Technical Report, is valid for single photon scintillation
cameras with parallel hole collimators used in planar scintigraphy and tomography. It is also
valid for the SPECT portion of SPECT/CT systems with parallel hole collimators, including the
co-registration between the SPECT and CT subsystems. The objective is to specify ROUTINE
TESTS for QUALITY CONTROL. Methods for the ACCEPTANCE TEST are described in IEC 61675-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC TR 60788:2004, Medical electrical equipment – Glossary of defined terms
IEC 61675-2:2015, Radionuclide imaging devices – Characteristics and test conditions –
Part 2: Gamma cameras for planar, wholebody, and SPECT imaging
IEC TR 61948-1:2016, Nuclear medicine instrumentation – Routine tests – Part 1: Gamma
radiation counting systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60788, IEC 61675-2,
and IEC TR 61948-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
NOTE Defined terms are printed in small capital letters.
3.1
ACCEPTANCE TEST
test carried out after new EQUIPMENT has been installed, or major modifications have been
made to existing EQUIPMENT, in order to verify compliance with contractual specifications
Note 1 to entry: During or immediately after ACCEPTANCE TEST, REFERENCE DATA are collected to be used as a
standard for comparison with future ROUTINE TESTS.
[SOURCE: IEC TR 60788:2004, rm-70-01, modified – The note to entry has been added.]
– 6 – IEC TR 61948-2:2019 © IEC 2019
3.2
QUALITY CONTROL
part of the quality assurance including tests of instruments with
appropriate test methods
Note 1 to entry: Includes both ACCEPTANCE TEST and ROUTINE TEST.
[SOURCE: IEC TR 61948-1:2016, 3.5]
3.3
ROUTINE TEST
test of a piece of equipment or its components, which is repeated at specif
...