An iterative fullwave simulation approach to multiple scattering in media with randomly distributed microbubbles.

ABSTRACT: Ultrasound contrast agents (UCA), such as microbubbles, enhance the scattering properties of blood, which is otherwise hypoechoic. The multiple scattering interactions of the acoustic field with UCA are poorly understood due to the complexity of the multiple scattering theories and the nonlinear microbubble response. The majority of bubble models describe the behavior of UCA as single, isolated microbubbles suspended in infinite medium. Multiple scattering models such as the independent scattering approximation can approximate phase velocity and attenuation for low scatterer volume fractions. However, all current models and simulation approaches only describe multiple scattering and nonlinear bubble dynamics separately. Here we present an approach that combines two existing models: (1) a f

SUBMITTER: Joshi A 

PROVIDER: S-EPMC5555237 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature