PMID: 9525861Apr 29, 1998Paper

Ultrasound-stimulated vibro-acoustic spectrography

Science
M Fatemi, J F Greenleaf

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.

References

Jan 1, 1996·Ultrasound in Medicine & Biology·L GaoS F Levinson

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Citations

Feb 17, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·T E OliphantJ F Greenleaf
Apr 20, 2005·Journal of Mammary Gland Biology and Neoplasia·Michael F InsanaKaren K Lindfors
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