Description

In medical ultrasonic imaging the signal reflected from the tissue often has a random character to it. It is believed that the random nature of the tissue scattering microstructure is responsible for the stochastic nature of the echo signal. Chen, et. al. Have proposed a signal processing scheme that is based on the statistical moments calculated on the Fourier transform of the time gated echo signal. The theory requires the knowledge of a frequency- dependent effective cell volume term. This paper describes the use of a closed form expression (Lommel diffraction formulation) for this purpose. Our simulation results suggest that reliable estimation of the cell volume is possible only when the time duration of the excitation pulse is small compared to the time gate length.

Date of creation, presentation, or exhibit

2001

Comments

Medical Imaging 2001: Ultrasonic Imaging and Signal Processing 4325 (2001) 380-391 Copyright 2001 Society of Photo-Optical Instrumentation Engineers. This paper was published in the Proceedings of Medical Imaging 2001: Ultrasonic Imaging and Signal Processing, SPIE vol. 4325, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. The authors would like to thank Dr. C.J. Daly and Dr. M. Helguera for many helpful discussions on the subject. ISSN: 1605-7422 Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type

Conference Proceeding

Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)

Campus

RIT – Main Campus

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