Tissue characterization by using fractal dimension of B-scan image

Classification of normal liver and diffuse liver disease, fatty liver and liver cirrhosis, by using the fractal dimension of ultrasound B-scan images is studied. The ruggedness of distribution of texture is classified by fractal dimension. For the fatty liver there are smaller particles in the texture compared with those of normal liver, and they dare distributed uniformly. For this situation the degree of ruggedness is considered to be high. For liver cirrhosis the various sizes of particles are distributed irregularly in the image and thus the state of distribution is considered to be a low degree of ruggedness compared with the fatty liver. For the normal liver the ruggedness is considered to be in between those of fatty liver and liver cirrhosis. Since the degree of ruggedness is varied by values of the fractal dimension, it may be possible to characterize the pathological states of the liver