Comparison imaging effect of acoustic radiation force excitation in ultrasound

Abstract

The computer aided imaging technique is used to study the beamforming of acoustic radiation force excitation, including the different frequency (includes interlaced, entered, symmetrically separated), impulse, and amplitude modulated patterns. The research aims to model and design an ultrasound system with suitable acoustic radiation force excitation, with higher accuracy information for the acoustic response from the designed local harmonic motion, which is produced by ultrasonic radiation force. These role and importance of each excitation phenomenon pattern is addressed here. The profiles from the radiation stress amplitude on the local focus plane and that are obtained from the beam axis. The experiments show the ultrasound fields from the xz-plane and point spread function (PSF) profiles in axial and lateral direction, and it can be used to help to design in transducer for acoustic radiation force excitation.