title: A Review of Vibro-acoustography and its Applications in Medicine.
abstract: In recent years, several new techniques based on the radiation force of ultrasound have been developed. Vibro-acoustography is a speckle-free ultrasound based imaging modality that can visualize normal and abnormal soft tissue through mapping the acoustic response of the object to a harmonic radiation force induced by ultrasound. In vibro-acoustography, the ultrasound energy is converted from high ultrasound frequencies to a low acoustic frequency (acoustic emission) that is often two orders of magnitude smaller than the ultrasound frequency. The acoustic emission is normally detected by a hydrophone. In medical imaging, vibroacoustography has been tested on breast, prostate, arteries, liver, and thyroid. These studies have shown that vibro-acoustic data can be used for quantitative evaluation of elastic properties. This paper presents an overview of vibro-acoustography and its applications in the areas of biomedicine.
authors.affiliation: Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905.
authors.forename: Matthew W
authors.initials: MW
authors.lastname: Urban
authors.forename: Azra
authors.initials: A
authors.lastname: Alizad
authors.forename: Wilkins
authors.initials: W
authors.lastname: Aquino
authors.forename: James F
authors.initials: JF
authors.lastname: Greenleaf
authors.forename: Mostafa
authors.initials: M
authors.lastname: Fatemi