Title :
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
fDate :
1/1/2012 12:00:00 AM
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;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2012.2166
