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Requirements for measurement standards in high intensity focused ultrasound (HIFU) fields.

Shaw, A; ter Haar, G* (2006) Requirements for measurement standards in high intensity focused ultrasound (HIFU) fields. NPL Report. DQL-AC 015

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Abstract

This report addresses the requirements for measurement standards, within the framework of the International Electrotechnical Commission, related to High Intensity Focused Ultrasound (HIFU) fields. Existing scientific literature has been reviewed as it relates to reported methods of characterising these types of ultrasonic fields and the responses to a questionnaire which was sent to members of the International Society for Therapeutic Ultrasound (ISTU) plus selected others are reported and analysed.
A number topics are identified which are considered important to the advancement of HIFU and where existing knowledge appears sufficient to produce a first Committee Draft within approximately two years. These are: Equipment safety and essential performance; measurement of ultrasound power; the specification of field parameters; the definition of thermal dose; and the electrical properties of the transducer. It is likely that several of these topics could be addressed within a single document.
A second set of topics is identified which are also important but where there is insufficient knowledge or consensus to start standardisation so quickly. A time frame of 5 years is considered more likely for these topics which are: a robust methodology of measuring pressure; the measurement of temperature; testing of the registration of the HIFU field with the targeting system; and a tissue-mimicking material for QA/engineering evaluation.

Item Type: Report/Guide (NPL Report)
NPL Report No.: DQL-AC 015
Subjects: Acoustics
Acoustics > Ultrasound
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/3409

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