Viscoelasticity of lung tissue with surface wave method

Author

Zhang, X. ; Kinnick, R.R. ; Greenleaf, J.F.

Author_Institution

Coll. of Med., Dept. of Physiol. & Biomed. Eng., Mayo Clinic Coll. of Med., Rochester, MN

fYear

2008

fDate

2-5 Nov. 2008

Firstpage

21

Lastpage

23

Abstract

Considerable interest in the elastic properties of soft tissue has developed in medicine due to their clinical relevance for monitoring the progression of various diseases as well as a biomarker for cancer. Most newly developed imaging modalities use shear wave to estimate the elasticity of tissue. A novel surface wave method has been developed by us for non-invasively estimating the elasticity of tissue. In this paper, we have extended this method for measuring viscoelastic material properties of pig lungs. A small force is generated by a mechanical shaker on the lung. The surface wave on the lung is measured by laser. The viscoelasticity of a 14 Kg pig lung is measured for different pressures.

Keywords

biomechanics; biomedical measurement; biomedical transducers; biomedical ultrasonics; cancer; laser applications in medicine; lung; measurement by laser beam; tumours; ultrasonic propagation; ultrasonic transducers; vibration measurement; viscoelasticity; cancer; disease monitoring; laser vibrometer; lung surface vibration measurement; lung tissue viscoelasticity; mass 14 kg; mechanical shaker; surface wave method; ultrasound transducer; viscoelastic material properties measurement; wave propagation; Biological tissues; Biomarkers; Biomedical imaging; Cancer; Diseases; Elasticity; Lungs; Monitoring; Surface waves; Viscosity; lung; noninvasive; surface wave; viscoelasticity;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2008. IUS 2008. IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4244-2428-3

Electronic_ISBN

978-1-4244-2480-1

Type

conf

DOI

10.1109/ULTSYM.2008.0006

Filename

4803548