Title :
Shell resonance responses in ultrasound contrast agents
Author :
Allen, John ; Kruse, Dustin ; Jones, Jeff ; Ferrara, Katherine
Author_Institution :
Div. of Biomed. Eng., California Univ., Davis, CA, USA
Abstract :
Ultrasound contrast agents are modeled as spherical elastic shells whose scattering characteristics are expressed using a modal series solution. Novel multipole resonance responses in the low frequency regime are found for agents with shells greater than 25 nm. The dipole peaks appear to be associated with a specific type of Lamb wave unique to curved shells. The peaks grow and shrink for various material and shell thickness parameters
Keywords :
acoustic resonance; biomedical ultrasonics; modelling; ultrasonic scattering; 25 nm; Lamb wave; curved shells; material parameters; medical diagnostic imaging; medical ultrasound; shell resonance responses; shell thickness parameters; spherical elastic shells; ultrasound contrast agents modeling; Acoustic scattering; Biomedical engineering; Equations; Frequency; Nonlinear acoustics; Polymers; Rayleigh scattering; Resonance; Ultrasonic imaging; Underwater acoustics;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849319
