Preliminary study of human lung elasticity with the noninvasive surface wave technique

Author

Zhang, Xiaoming ; Qiang, Bo ; Hubmayr, Rolf D. ; Greenleaf, James F.

Author_Institution

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

fYear

2010

fDate

11-14 Oct. 2010

Firstpage

1153

Lastpage

1155

Abstract

Mechanical properties of lung are closely related to lung diseases. However, currently there are no noninvasive methods that can measure the local lung tissue mechanical properties. In this paper, a technique that involves tracking the surface wave propagation and using ultrasound images to guide the measurements is introduced. The proposed method is tested on a human subject at both functional residual capacity (FRC) and total lung volume (TLV) conditions. The results show that the surface wave speed at 200 Hz is 4.31 m/s and 7.43 m/s at FRC and TLV, respectively. The proposed method has a clinical potential for quantifying the lung regional stiffness noninvasively.

Keywords

biomechanics; biomedical ultrasonics; elastic waves; elasticity; lung; both functional residual capacity; frequency 200 Hz; human lung elasticity; lung disease; lung mechanical properties; lung regional stiffness quantification; noninvasive surface wave technique; surface wave propagation tracking; surface wave speed; total lung volume; ultrasound images; velocity 4.31 m/s; velocity 7.43 m/s; Delay; Lungs; Mechanical factors; Mechanical variables measurement; Surface waves; Ultrasonic imaging; Ultrasonic variables measurement; elasticity; lung; surface wave; ultrasound;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2010 IEEE

Conference_Location

San Diego, CA

ISSN

1948-5719

Print_ISBN

978-1-4577-0382-9

Type

conf

DOI

10.1109/ULTSYM.2010.5935742

Filename

5935742