1[3]Ophir J, Cespedes EI, Ponnekanti H, et al. Elastograpy: A quantitative method for imaging the elasticity of biological tissues. Ultrason Imaging, 1991,13: 111-134
2[4]Kallel F, Ophir J, Magee K, et al. Elastographic imaging of low-contrast elastic modulus distributions in tissue. Ultrasound in Med Biol, 1998,24:409-425
3[5]Righetti R, Ophir J, Ktonas P. Axial resolution in elastography.Ultrasound in M ed Biol., 2002,28 (1): 101-113
4[6]Kallel F,Ophir J. Limits on the contrast of strain concentrations in elastography. ibid., 1998,24: 1215-1219
5[7]Alam K,Ophir J, Konofagou EE. An adaptive strain estimator for elastography. IEEE Trans Ultrason Ferroelect Freg Contr. 1998,45: 461-472
6[8]Shiina T,Yamakawa M,Nitta N,et al. Recent progress of ultrasound elasticity imaging technology. Seven Congress of the Asian Federation of Societies for Ultrasound in Medicine and Biology (Abstract). Utsunomiya, Toc higi, Japan ( May, 2004): 198