Quantitative ultrasonic attenuation image of the biological tissues using the inverse scattering technique

The authors recently developed the backward propagation Rytov approximation to improve significantly the quantitative precision of an inverse scattering acoustic parameter image of a weak scattering tissue-like object in the lossless case. In the present paper, the quantitative precision of the inverse scattering image was examined with particular emphasis on the attenuation image. Moreover, to avoid the attenuation image degradation encountered when the sound speed contrast of the object is large, a compensation method for extending the limit of the weak scattering approximation is presented. From the test examination, the quantitative precision, of both the sound speed and the attenuation images, is proved to be sufficients