Evaluation of structural change in diffuse liver disease with frequency domain analysis of ultrasound
Kunio Suzuki, Norio Hayashi, Yutaka Sasaki, Michikazu Kono, Akinori Kasahara, Yutaka Imai, Hideyuki Fusamoto, Takenobu Kamada – 1 June 1993 – To evaluate structural changes in diffuse liver disease, frequency domain analysis was applied to ultrasonic signals from the liver. We assumed that liver tissue is a collection of semiregularly arrayed small scatterers of ultrasound. We applied cepstral analysis to the ultrasonic waveforms and evaluated the periodicity of scalloping of the power spectrum caused by an interference effect among liver scatterers of a given spacing.