| 摘 要： | In this paper a new method of ultrasonic quantitative diagnosis isdiscribed.This method can elminate the effect of system deviation and lessenthe the effect of beam radiation diffraction.In can be spp1ied together withmany kinks of B-scanners.To verify the method,this paper has shown a newmethod to make a tissue phantom and a special apparatus.The results showthat the method is useful in the diagnosis of diffuse liver diseases,tumors andcanccrs.It is also useful in the appraisal of the health and the stages of fetus.
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