Ultrasound-stimulated vibro-acoustic spectrography

Research output: Contribution to journalArticle

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Abstract

An ultrasound method based on radiation force is presented for imaging the acoustic response of a material to mechanical excitation. Acoustic energy was emitted from solids and tissues in response to an oscillatory radiation force produced by interfering focused beams of ultrasound. Frequency spectra of ultrasound-stimulated acoustic emission exhibited object resonances. Raster-scanning the radiation force over the object and recording the amplitude and phase of the emitted sound resulted in data from which images related to the elastic compositions of the acoustically emitting objects could be computed. Acoustic emission signals distinguished tuning-fork resonances, submillimeter glass spheres, and calcification in excised arteries and detected object motions on the order of nanometers.

Original languageEnglish (US)
Pages (from-to)82-85
Number of pages4
JournalScience
Volume280
Issue number5360
DOIs
StatePublished - Apr 3 1998

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Acoustics
Radiation
Glass
Arteries

ASJC Scopus subject areas

  • General

Cite this

Ultrasound-stimulated vibro-acoustic spectrography. / Fatemi, Mostafa; Greenleaf, James F.

In: Science, Vol. 280, No. 5360, 03.04.1998, p. 82-85.

Research output: Contribution to journalArticle

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