Method of estimating tissue attenuation using wideband ultrasoni

Details Method of estimating tissue attenuation using wideband ultrasoni Method of estimating tissue attenuation using wideband ultrasoni

1984-09-14

1986-11-11

Recla, Henry J.

Surgery

Truss

Pad

73599, A61B 1000

Patent

active

046216456

ABSTRACT:
Tissue attenuation of ultrasound energy is determined by transmitting a wide band ultrasonic pulse into tissue and obtaining a measure of the average center frequency of the reflected pulse between two levels in the tissue. The log amplitude decay is estimated from a reflected pulse, and the attenuation coefficient is then obtained from the ratio of log amplitude decay to average center frequency between the two levels.

REFERENCES:
patent: 4389893 (1983-06-01), Ophir et al.
patent: 4414850 (1983-11-01), Miwa et al.
patent: 4441368 (1984-04-01), Flax
patent: 4452082 (1984-06-01), Miwa
patent: 4452085 (1984-06-01), Pelc et al.
Dines, K. A. et al, "Ultrasonic Attenuation Tomography of Soft Tissues", Ultrasonic Imaging, vol. 1, No. 1, 1979, pp. 16-33.
Kuc, R. et al, "Estimating the Acoustic Attenuation Coefficient Slope for Liver from Reflected Ultrasound Signals", IEEE Transactions on Sonics and Ultrasonics, vol. SU-26, No. 5, Sep. 1979.

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