Measuring and testing – Vibration – By mechanical waves
Patent
1986-03-25
1988-06-14
Jaworski, Francis J.
Measuring and testing
Vibration
By mechanical waves
73599, 128660, G01N 2900, A61B 1000
Patent
active
047503661
ABSTRACT:
A biological or other material is scanned along a line or plurality of lines by at least one transducer, and the signals received are separated into n substantially equal, consecutive frequency bands after which the envelope of the signals in each frequency band is determined. Each of the signal envelopes, being proportional to the power spectrum of the echographic signal, is divided by a dividing signal which is proportional to the power spectrum of a phantom which has the same attenuation as the object being examined, the logarithm being determined of the signal resulting from this division, after which the following operations are performed in the channels a, b, . . . , i, . . . n on the basis of the signals thus obtained: (a) calculating the logarithm of a frequency which is representative of the passband of each channel; (b) storing in a memory and/or displaying a function of the ratio of the scatter function of the object scanned and the scatter function of the phantom as a function of the frequency mentioned sub (a); as a representation of the object's scatter function.
REFERENCES:
patent: 4259870 (1981-04-01), McLeod et al.
patent: 4446737 (1984-05-01), Hottier
patent: 4512195 (1985-04-01), Miwa et al.
patent: 4564019 (1986-01-01), Miwa
patent: 4594896 (1986-06-01), Cardoso et al.
patent: 4646748 (1987-03-01), Fuji et al.
patent: 4688428 (1987-08-01), Nicolas
Parker, K. J. et al., "Measurement of UTS Attenuation Within Regions Selected from B-Scan Images", IEEE BME Transactions, vol. BME-30, 8-1983.
Haken Jack E.
Jaworski Francis J.
U.S. Philips Corporation
LandOfFree
Method of and device for measuring an ultrasound scatter functio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and device for measuring an ultrasound scatter functio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and device for measuring an ultrasound scatter functio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-498424