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IEC TR 62649:2010

(Main)

Requirements for measurement standards for high intensity therapeutic ultrasound (HITU) devices

Requirements for measurement standards for high intensity therapeutic ultrasound (HITU) devices

IEC/TR 62649:2010(E) is relevant to the measurement and specification of ultrasound fields intended for medical therapeutic purposes. Lithotripsy and physiotherapy are excluded, since there are existing International Standards for these applications. IEC/TR 62649:2010 establishes:
- topics where there is a consensus that the development of International Standards would benefit the industries and/or patients;
- topics where the writing of standards should start immediately;
- topics where the writing of technical specifications should start immediately in order to gain practical experience and establish consensus prior to standardisation;
- topics which require future standardisation but where further research is required before initiating the writing of standards or technical specifications. IEC/TR 62649:2010 addresses primarily the requirements for measurement standards related to high intensity therapeutic ultrasound (HITU) [also known as high intensity focused ultrasound (HIFU)] fields which are both high intensity and focused and where the main mechanism for action is thermal. However, aspects of the discussion, conclusions and any resulting standards or technical specifications may also be relevant to therapeutic applications which are either focused or high intensity or where the main mechanism is not thermal. Scientific literature has been reviewed and responses to a questionnaire which was sent to experts around the world are reported.

General Information

Status
Published
Publication Date
27-Apr-2010
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
17.140.50 - Electroacoustics
Technical Committee
TC 87 - Ultrasonics
Drafting Committee
WG 6 - TC 87/WG 6
Current Stage
PPUB - Publication issued
Start Date
30-Jun-2010
Completion Date
28-Apr-2010
Ref Project

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IEC TR 62649:2010 - Requirements for measurement standards for high intensity therapeutic ultrasound (HITU) devices
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IEC/TR 62649
®
Edition 1.0 2010-04
TECHNICAL
REPORT

Requirements for measurement standards for high intensity therapeutic
ultrasound (HITU) devices


IEC/TR 62649:2010(E)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC/TR 62649
®
Edition 1.0 2010-04
TECHNICAL
REPORT

Requirements for measurement standards for high intensity therapeutic
ultrasound (HITU) devices


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XD
ICS 17.140.50 ISBN 978-2-88910-922-7
® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – TR 62649 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Background .7
3 Limitations of existing standard methods .10
3.1 General .10
3.2 Very high pressures .11
3.3 Very high intensities .11
3.4 Strong focusing .12
3.5 Nonlinear harmonics .12
3.6 Acoustic saturation and nonlinear loss .12
3.7 Relevant parameters .13
4 Survey of experts .13
5 Existing literature for measurement of HITU fields .
...

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