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Implementation of a combined autocorrelation method for real-time tissue elasticity imaging on FPGA

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3 Author(s)
Ohwada, D. ; Grad. Sch. of Comput. Sci. & Eng., Univ. of Aizu, Fukushima ; Okuyama, Y. ; Kuroda, K.

Tissue elasticity imaging by ultrasound echo is expected to be a powerful tool for tumor detection. However, elasticity imaging methods are not suitable for real-time processing because of the enormous computation time required. In this study, a strain distribution estimation algorithm with spatial differentiation of the displacement distribution using the combined autocorrelation method (CA) is implemented. The CA has the advantage of producing high-quality strain images with application to large displacements. Circuit implementation is realized using an structured function description language (SFL) after evaluation on a fixed-point design in SystemC. The designed parallel-pipelined CA architecture performs real-time processing at 30 fps on a Dini Group DNDVI DC board powered by Virtex-4 FX100 FPGA clocked at 100 MHz.

Published in:

Computer and Information Technology, 2008. CIT 2008. 8th IEEE International Conference on

Date of Conference:

8-11 July 2008