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2. Magnetic Resonance Elastography by Direct Visualization of Propagating Acoustic Strain Waves
3. For a review of elasticity imaging methods, see Gao L., Parker K. J., Lerner R. M., Levinson S. F., Ultrasound Med. Biol. 22, 959 (1996).
4. The study of radiation force and radiation pressure dates back nearly one century, to the time of Rayleigh [Lord Rayleigh, Philos. Mag. 3, 338 (1902); ibid. 10, 364 (1905)]. More recent analysis of the theory and explanation of the physical significance of the mathematics can be found in G. R. Torr, Am. J. Phys. 52, 402 (1984) . Critical and historical reviews on radiation force and radiation pressure are presented in B-T. Chu, R. E. Apfel, J. Acoust. Soc. Am. 72, 1673 (1982) and R. E. Beyer, ibid 63, 1025 (1978) . Some recent analysis of radiation force and pressure in attenuating medium (which may be applicable to biological tissues) are presented in O. V. Rudenko, A. P. Sarvazyan, S. Y. Emelianov, J. Acoust. Soc. Am. 99, 2791 (1996) and Jiang Z.-Y., Greenleaf J. F., ibid 100, 741 (1996).
5. Westervelt P. J., J. Acoust. Soc. Am.23, 312 (1951).