Ultrasound diagnostic equipment

Details Ultrasound diagnostic equipment Ultrasound diagnostic equipment

1989-05-25

1992-03-17

Jaworski, Francis

Surgery

Truss

Pad

73599, A61B 800

Patent

active

050959093

ABSTRACT:
Ultrasound diagnostic equipment for diagnosing a region of interest of an organ by using a scattering coefficient and an attenuation slope comprises a scattering power calculation unit for calculating a scattering spectrum of the region of interest, a cumulative attenuation slope calculation unit for calculating a cumulative attenuation slope of the intervening tissue between a body surface and a position of blood close to the region of interest by using a scattering coefficient of blood which is previously known, and a scattering coefficient calculation unit for calculating a scattering coefficient of the region of interest by using the calculated cumulative attenuation slope of the intervening tissue between body surface and the blood close to the region of interest. Therefore, a scattering coefficient and an attenuation slope of the region of interest can be calculated with high accuracy, and the region of interest can be exactly diagnosed by the calculated scattering coefficient and the attenuation slope thereof.

REFERENCES:
patent: 4575799 (1986-03-01), Miwa et al.
patent: 4867167 (1989-09-01), Magnin
Shirou Miyagi et al. "In Vivo Tissue Characterization Using Blood Flow Doppler Signal as a Reference" J.S.U.M. BT, vol. 13-88, pp. 1-6.
Ophir, J. et al. "Attenuation Estimation in Reflection: Progress & Prospects", UTS Imaging 6, 349-395 (1984).
Parker, K. et al., "Measurement of UTS Attenuation Within Regions Selected from B-Scan Images", IEEE BME Transactions-30 #8. Aug. 1983, pp. 431-437.
The Japan Society of Ultrasonics in Medicine, Proceedings of the 52nd Meeting, Tokyo, Jun. 22-24, 1988. "In Vivo Tissue Characterization Using Blood Flow Doppler Signal as a Reference", Kiyoshi Nakayama and S. Yagi, pp. 399-400.

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