Quantification of the scatterer distributions for liver fibrosis using modified Q-Q probability plot

To realize a quantitative diagnosis method of liver fibrosis, we have been developing a modeling method for the probability density function of the echo amplitude. In our previous study, we proposed a multi-Rayleigh model with two or three Rayleigh distributions, which is considered as a heterogeneous medium consisting of normal and different tissue, and constructed the evaluation method using modified quantile-quantile probability plot (Q-Q plot). In this study, we examined a multi-Rayleigh model and generalized Nakagami model which is general technique, corresponding to the distribution of the echo amplitude from homogeneous and heterogeneous medium. In clinical data of liver fibrosis, we showed validity of proposed model.