Analysis of Scatter Fields in Diffraction Tomography Experiments
The propagation of acoustic waves through complex, inhomogeneous materials such as tissue is characterized by a number of processes that include scattering, diffraction, refraction and reflection. Reconstructing images of such objects from measured transmit or scatter fields provides a considerable challenge and the reconstruction approach that is most suitable may depend on which of these processes dominate. In order to gain a better understanding of these factors, we have initiated a detailed investigation of the nature of scatter fields observed in vivo in human breast tissue for a number of diffraction tomography experiments.
KeywordsAttenuation Nylon Refraction Compressibility Acoustics
Unable to display preview. Download preview PDF.
- 1.P.J. Martin, M.P.André, B.A. Spivey and D.A. Palmer, Sonic computed tomography for breast imaging, in: “Breast Imaging Update,” Madjar H, Teubner J, Hackeloer BJ, eds., Karger, Basel (1993).Google Scholar
- 2. M.P. André, P.J. Martin, G.P. Otto, L.K. Olson, T.K. Barrett and B.A. Spivey, A new consideration of diffraction computed tomography for breast imaging: Studies in phantoms and patients, Acoustical Imaging 21 (1994).Google Scholar
- 5. G.E. Trahey, P.D. Freiburger, L.F. Nock and D.C. Sullivan, In vivo measurements of ultrasonic beam distortion in the breast, Ultrason. Imag. 13:71, (1991).Google Scholar
- 6. B.D. Steinberg, A discussion of two wavefront aberration correction procedures, Ultrason. Imag. 14:398 (1992).Google Scholar
- 7. B.A. Spivey, P.J. Martin, D.A. Palmer, “Acoustic Imaging Device”, US. Patent Number 5,305,752 (April 26, 1994).Google Scholar
- 8. A. Ishimaru, “Wave Propagation and Scattering in Random Media, Vol.l”, Academic Press, N.Y. (1978).Google Scholar
- 9. J.W. Goodman, “Statistical Optics”, J. Wiley & Sons, N.Y. (1983).Google Scholar