A technique has been previously proposed for evaluating the ultrasonic attenuation constant of scattering media such as human liver. The technique is based on processing the data sampled from the ultrasonic B-mode images. The relation between the lateral sampling interval and the ultrasonic beamwidth in a given distance is investigated. Experiments with a tissue phantom compounded of fine glass balls and agar indicate that the appropriate sampling interval is half of the minus 3-dB beamwidth.
|ジャーナル||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
|出版ステータス||Published - 1986 12月 1|
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