Ultrasonic diagnostic apparatus

Details Ultrasonic diagnostic apparatus Ultrasonic diagnostic apparatus

1992-11-25

1994-05-24

Kamm, William E.

Surgery

Truss

Pad

12866207, A61B 813

Patent

active

053139488

ABSTRACT:
An ultrasonic diagnostic apparatus comprises an ultrasonic transducer for transmitting and receiving ultrasonic waves to and from a body to be examined and a control section for automatically determining the optimum image conditions on the basis of the echo signals obtained by the ultrasonic transducer. The control section comprises circuits for controlling the amplification factor of the echo signals, the amplification factors of the echo signals for the respective visual field depths and the adjustment of image contrast, on the basis of the echo signals obtained by the ultrasonic transducer. These control circuits comprises a histogram forming circuit for forming histogram information on the basis of the echo signals obtained by ultrasonic transducer, which represents a histogram in which the brightness values of the image to be displayed as gradations and the number of pixels of the respective corresponding brightness values as frequencies; a compared value detecting circuit for detecting a median value or a peak value of the formed histogram on the basis of the histogram information; and an amplification factor determining circuit for comparing the compared value with a predetermined reference value and for determining the amplification factor of the echo signals or the adjustment level of the image contrast so as to eliminate the difference between the compared value and the reference value. The ultrasonic diagnostic apparatus can automatically determine the optimum image conditions at all times, irrespective of the thickness of the layer of fat or the state of the tissue of the body to be examined.

REFERENCES:
patent: 4106346 (1978-08-01), Matzak
patent: 4257270 (1981-03-01), Walz et al.
patent: 4662380 (1987-05-01), Riley
patent: 5083566 (1992-01-01), Baba
patent: 5191557 (1993-03-01), Rector et al.
Melton Jr., et al., Rational-Gain-Compensation for Attenuation in Ultrasonic Cardiac Imaging, Ultrasonics Symposium Proceedings, IEEE, vol. 2, Oct. 14, 1981, pp. 607-611.

Affiliated with

Also associated with

Rating

Ultrasonic diagnostic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic diagnostic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic diagnostic apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1966385