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A numerical simulation study of three linear array arrangements for vibro-acoustography

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3 Author(s)
Silva, G.T. ; Mayo Clinic & Found., Rochester, MN, USA ; Greenleaf, J.F. ; Fatemi, M.

In this work, we study the beamforming of three linear array transducers for vibro-acoustography systems: separated, interlaced, and randomly interlaced. Each transducer is composed of two linear arrays. The goal of this research is to model and design a system with a linear array probe for in vivo applications. The system point-spread function is given in terms of the dynamic ultrasound radiation force produced by the interference of the ultrasound beams generated by each array. Simulations using a lateral aperture of 48 mm and array parameters similar to conventional ultrasound systems present the resolution cells smaller than 1.4×2.8×6.1 mm in azimuth, elevation, and range. The interlaced transducers exhibit transverse resolution acceptable for medical imaging applications.

Published in:

Ultrasonics, 2003 IEEE Symposium on  (Volume:1 )

Date of Conference:

5-8 Oct. 2003