Design and characterization of dual-curvature 1.5-dimensional high-intensity focused ultrasound phased-array transducer

Author

Gin-Shin Chen ; Che-Yu Lin ; Jong Seob Jeong ; Cannata, Jonathan Matthew ; Win-Li Lin ; Hsu Chang ; Shung, K. Kirk

Author_Institution

Div. of Med. Eng. Res., Nat. Health Res. Inst., Zhunan, Taiwan

Volume

59

Issue

1

fYear

2012

fDate

1/1/2012 12:00:00 AM

Firstpage

150

Lastpage

155

Abstract

A dual-curvature focused ultrasound phased-array transducer with a symmetric control has been developed for noninvasive ablative treatment of tumors. The 1.5-D array was constructed in-house and the electro-acoustic conversion efficiency was measured to be approximately 65%. In vitro experiments demonstrated that the array uses 256 independent elements to achieve 2-D wide-range high-intensity electronic focusing.

Keywords

tumours; ultrasonic therapy; ultrasonic transducer arrays; 2D wide-range high-intensity electronic focusing; dual-curvature 1.5D high-intensity focused ultrasound phased-array transducer; electroacoustic conversion efficiency; noninvasive ablative tumor treatment; symmetric control; Acoustics; Apertures; Arrays; Focusing; Lesions; Phantoms; Transducers; Animals; Computer Simulation; High-Intensity Focused Ultrasound Ablation; Meat; Models, Biological; Neoplasms; Phantoms, Imaging; Swine; Transducers;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2012.2166

Filename

6138737