A New Method for Attenuation Coefficient Measurement in the Liver

Objective. To assess the feasibility of a new method of measuring the attenuation coefficient in the liver, which offers less variability of results than the conventional method. Methods. The attenuation coefficient was evaluated on the basis of the following equation with sound field correction:

[1]  L. Wilson,et al.  Frequency domain processing for ultrasonic attenuation measurement in liver. , 1984, Ultrasonic imaging.

[2]  R. Kuc,et al.  Estimating the Acoustic Attenuation Coefficient Slope for Liver from Reflected Ultrasound Signals , 1979, IEEE Transactions on Sonics and Ultrasonics.

[3]  J. Ophir,et al.  A Narrowband Pulse-Echo Technique for In Vivo Ultrasonic Attenuation Estimation , 1985, IEEE Transactions on Biomedical Engineering.

[4]  B. Garra,et al.  Ultrasound Attenuation Measurements of the Liver in Vivo Using a Commercial Sector Scanner , 1984, Ultrasonic imaging.

[5]  M Fink,et al.  Ultrasonic signal processing for in vivo attenuation measurement: short time Fourier analysis. , 1983, Ultrasonic imaging.

[6]  J A Zagzebski,et al.  Ultrasound backscatter and attenuation in human liver with diffuse disease. , 1999, Ultrasound in medicine & biology.

[7]  J. Cardoso,et al.  Diffraction Effects in Pulse-Echo Measurement , 1984, IEEE Transactions on Sonics and Ultrasonics.

[8]  J. G. Miller,et al.  Attenuation Estimation in Reflection: Progress and Prospects , 1984, Ultrasonic imaging.

[9]  Mathias Fink,et al.  Ultrasonic Signal Processing for in Vivo Attenuation Measurement: Short Time Fourier Analysis , 1983 .

[10]  J. Ophir,et al.  On the Frequency Dependence of Attenuation in Normal and Fatty Liver , 1983, IEEE Transactions on Sonics and Ultrasonics.

[11]  P He,et al.  Attenuation estimation on phantoms--a stability test. , 1986, Ultrasonic imaging.

[12]  F Dunn,et al.  Ultrasonic absorption and attenuation in mammalian tissues. , 1979, Ultrasound in medicine & biology.

[13]  K. Itoh,et al.  Studies on frequency‐dependent attenuation in the normal liver and spleen and in liver diseases, using the spectral‐shift zero‐crossing method , 1988, Journal of clinical ultrasound : JCU.

[14]  P A Narayana,et al.  On the validity of the linear approximation in the parametric measurement of attenuation in tissues. , 1983, Ultrasound in medicine & biology.

[15]  D. Nicholas,et al.  EVALUATION OF BACKSCATTERING COEFFICIENTS FOR EXCISED HUMAN TISSUES: RESULTS, INTERPRETATION AND ASSOCIATED MEASUREMENTS , 1982 .

[16]  R. Kuc.  Clinical Application of an Ultrasound Attenuation Coefficient Estimation Technique for Liver Pathology Characterization , 1980, IEEE Transactions on Biomedical Engineering.

[17]  C. Burckhardt.  Speckle in ultrasound B-mode scans , 1978, IEEE Transactions on Sonics and Ultrasonics.