Characterising the microstructure of random media using ultrasound

M. F. Insana, T. J. Hall

Research output: Contribution to journalArticle

Abstract

This paper describes a technique of forming images of the average size and scattering strength of scatterers in a random medium using ultrasound. Quantitative ultrasound images provide a more direct interpretation of the underlying structure of the medium, e.g. size, shape, number and elastic properties of scatterers, and increased detectability for regions of varying structure. A signal-to-noise analysis was used to show quantitatively how properties of the imaging system influence low-contrast detectability in quantitative ultrasound images. In one experiment, signal-to-noise measurements using phantoms were compared with B-mode imaging for several transducer bandwidths to observe variations in image contrast and speckle noise. The findings are being used to optimise the design of quantitative imaging systems for specific diagnostic tasks.

Original languageEnglish (US)
Article number003
Pages (from-to)1373-1386
Number of pages14
JournalPhysics in medicine and biology
Volume35
Issue number10
DOIs
StatePublished - Dec 1 1990

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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