Title :
Multiple-frequency ultrasonic imaging using a multiple-resonance transducer
Author :
Akiyama, Iwaki ; Yoshizumi, Natsuki ; Nakamura, Kentaro
Author_Institution :
Dept. of Electr. & Electron. Eng., Shonan Inst. of Technol., Fujisawa, Japan
Abstract :
This paper investigates multiple-resonance transducers using 1-3 composite materials based on a thin piezoelectric transducer bonded with a thick plate resonator. The application of the transducer to clinical diagnosis involves speckle reduction using a compound-frequency method. Imaging experiments using pork liver, meat, and a phantom were conducted and demonstrated that flat, broadband characteristics are important in a multiple-resonance transducer used for multiple-frequency imaging.
Keywords :
acoustic resonance; biomedical ultrasonics; composite materials; patient diagnosis; piezoelectric transducers; ultrasonic imaging; ultrasonic transducers; 1-3 composite materials; clinical diagnosis; compound-frequency method; meat imaging; multiple-frequency ultrasonic imaging; multiple-resonance transducer; phantom imaging; pork liver imaging; speckle reduction; thick plate resonator; thin piezoelectric transducer; Bonding; Composite materials; Piezoelectric transducers; Prototypes; Resonant frequency; Speckle; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement; Voltage; component; flat and broadband transducer; piezoelectric transducer; speckle reduction; thick plate resonator;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441938
