Surgery – Truss – Pad
Patent
1991-09-27
1993-09-14
Jaworski, Francis
Surgery
Truss
Pad
12866107, A61B 800
Patent
active
052439879
ABSTRACT:
An apparatus for obtaining a blood backscattering power, comprising a signal input unit for inputting an electric signal which is converted from an ultrasound signal which has been generated in a certain depth in the human body by reflecting or backscattering; a Doppler spectrum obtaining unit for obtaining a Doppler spectrum which contains information on a distribution of an intensity of the above electric signal as a function of a time and a Doppler frequency, where the Doppler frequency is a quantity indicating a velocity component in a direction of the above transmitted ultrasound signal, of an object which backscatters the transmitted ultrasound signal; a Doppler frequency range determining unit for determining an elimination frequency range of the above Doppler frequency for each time; and an accumulating unit for accumulating the above intensity over a whole range of the above Doppler frequency except the above elimination frequency range for each time, to obtain a blood backscattering power of the time. The apparatus may further contain: a time range determining unit for determining an efective time range; and an averaging unit for averaging the above blood backscattering power over the efective time range to obtain an average of the above blood backscattering power in the efective time range.
REFERENCES:
patent: 4152928 (1979-05-01), Roberts
patent: 4867167 (1989-09-01), Magnin
patent: 4873984 (1989-10-01), Hunt et al.
patent: 4881549 (1989-11-01), Rhyne
patent: 4993418 (1991-02-01), Weaver et al.
patent: 5095909 (1992-03-01), Nakayama et al.
Yamada, I. et al "UTS Diagnostic Equipment for Deep Organs such as Heart" EP 0383288 published 22 Aug. 1990.
Brandestini, M. A. et al "Blood Flow Imaging Using a Discrete Time-Frequency Meter" 1978 UTS Symp. Proc. IEEE Cat. #78 CH 1344-1SU Cherry Hill, N.J. 25-27 Sep. 1978 pp. 348-352.
K. Nakayama and S. Yagi, "In Vivo Tissue Characterization Using Blood Flow Doppler Signal as a Reference," Japanese Journal of Medical Ultrasonics, vol. 15, Supplement I, 1988 (Jun. 4, 1988, in Japanese).
S. Miyagi et al., The Technical Report of the Institute of Electronics, Information and Communication Engineers, vol. 88, No. 307, US-88-47 (Dec. 1, 1988, in Japanese).
The Journal of Acoustic Society of America, vol. 83, No. 4, 1 Apr. 1988, New York, pp. 1639-1644; Roos et al.: "Application of 30-mhz acoustic scattering to the study of human red blood cells".
Medical and Biological Engineering, vol. 11, No. 6, 1 Nov. 1973, pp. 766-770; Baker et al.: "Technique for studying the sample volume of ultrasonic Doppler devices".
Journal of the Acoustic Society of America, vol. 75, No. 4, 1 Apr. 1984, New York, pp. 1265-1272; Shung et al.: "Effect of flow disturbance on ultrasonic backscatter from blood".
Fujitsu Limited
Jaworski Francis
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