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Metrology for ultrasonic applications.

Bajram Zeqiri¹

¹Acoustics Team, Quality of Life Division, National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK. bajram.zeqiri@npl.co.uk

Progress in Biophysics and Molecular Biology

|November 4, 2006

Summary

This review covers metrology for medical ultrasound acoustic output, detailing key instruments like radiation force balances and hydrophones. It outlines the UK

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Area of Science:

Metrology
Medical Physics
Acoustics

Background:

Accurate characterization of acoustic output is crucial for medical ultrasound equipment safety and efficacy.
Existing metrological capabilities require continuous review and enhancement.

Purpose of the Study:

To review current metrological capabilities for characterizing the acoustic output of medical ultrasound devices.
To describe the UK's measurement infrastructure for traceable acoustic output measurements.
To discuss emerging techniques for improved measurement capability.

Main Methods:

Review of established measurement devices: radiation force balance for total power and piezoelectric hydrophone for spatial/temporal pressure distribution.
Description of the UK's national measurement infrastructure, including primary standards and dissemination routes.
Brief discussion of novel measurement techniques.

Main Results:

Established metrological tools (radiation force balance, hydrophone) are fundamental for acoustic output characterization.
The UK possesses a robust infrastructure for traceable measurements in this field.
International equivalence of national standards is maintained through established procedures.

Conclusions:

Current metrology provides a foundation for characterizing medical ultrasound acoustic output.
The described infrastructure ensures traceability and accessibility of standards for users.
Future advancements in measurement techniques promise enhanced capability.

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