A Review of Vibro-acoustography and its Applications in Medicine

被引:2
作者
Urban, Matthew W. [1 ]
Alizad, Azra [1 ]
Aquino, Wilkins [2 ]
Greenleaf, James F. [1 ]
Fatemi, Mostafa [1 ]
机构
[1] Mayo Clin, Coll Med, Dept Physiol & Biomed Engn, Rochester, MN 55905 USA
[2] Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14850 USA
基金
美国国家卫生研究院;
关键词
Ultrasound; radiation force; vibro-acoustography; imaging; ACOUSTIC-RADIATION FORCE; VISCOELASTIC SPHERICAL-SHELLS; FOCUSED ULTRASOUND; HARMONIC MOTION; IN-VIVO; TISSUE ELASTICITY; IMAGING MODALITY; MR ELASTOGRAPHY; SHEAR-MODULUS; POWER OUTPUT;
D O I
10.2174/157340511798038648
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
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, vibro-acoustography 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.
引用
收藏
页码:350 / 359
页数:10
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