Surgery – Truss – Pad
Patent
1984-11-28
1987-04-07
Howell, Kyle L.
Surgery
Truss
Pad
73602, A61B 1000
Patent
active
046552286
ABSTRACT:
A diagnosis apparatus for discriminating a property of the tissue to be observed from the reflected ultrasonic wave uses the nature of the fine structure of the tissue, and more practically uses the interval of small reflecting bodies dispersely distributed in the tissue as the parameters. The intervals flucatuate. Therefore, an average value and/or a degree of fluctuation is calculated and is displayed. For obtaining the average interval, a method of using the cepstrum of the received signal or a method of using the self-correlation of the received signal can be used.
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Dines, K. A. et al., "Ultrasonic Attenuation Tomography of Soft Tissues", Ultrasonic Imaging vol. 1 No. 1, 1979.
Kue, R. et al., "Estimating the Acoustic Attenuation Coefficient Slope for Liver from Reflected UTS Signals", IEEE Trans. on Sonics and Ultrasonics, vol. Su-26 No. 5 Sep. 1979, pp. 353-361.
Jethwa, C. P. et al., "Blood Flow Measurements Using UTS Pulsed Random Signal Doppler System", IEEE Trans. vol. Su-22, No. 1 pp. 1-11, Jan. 1975.
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Hayashi Hajime
Igarashi Yutaka
Inoue Michitoshi
Matsumoto Masayuki
Miwa Hirohide
Fujitsu Limited
Howell Kyle L.
Jaworski Francis J.
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