Measurement of acoustic impedance of bone by considering reflection and attenuation of soft tissue using the ultrasonic reflection method

H. Asai, H. Kanai, N. Chubachi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A recently proposed system for diagnosing osteoporosis by measuring the acoustic impedance of bone fails to provide the necessary step of taking reflection loss at the interface between the bone and the soft tissue as well as propagation loss in the soft tissue into account. Here we propose an ultrasonic reflection method that compensates for these losses. Preliminary experiments using PMMA/Bakelite and rubber/Bakelite composite models indicate the validity of this method. Values obtained in vivo with and without compensation differed significantly.

Original languageEnglish
Pages (from-to)643-650
Number of pages8
JournalJapanese Journal of Medical Ultrasonics
Volume23
Issue number9
Publication statusPublished - 1996 Jan 1

Keywords

  • Acoustic impedance
  • Osteoporosis
  • Reflection coefficient
  • Ultrasonic reflection method

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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