Ultrasonic diagnosis apparatus

Details Ultrasonic diagnosis apparatus Ultrasonic diagnosis apparatus

1995-08-09

1997-09-30

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

056717440

ABSTRACT:
A reception signal containing phase information and amplitude information is obtained by scanning a cross section of a subject with an ultrasonic wave. An ultrasonic image is formed on the basis of the reception signal and displayed. A noise component is filtered from reception signals at respective points in the cross section. The reception signals, which have not been non-linear processed, i.e., have not been subjected to an image forming process, are filtered. Therefore, the suppression effect of suppressing an image of a portion which moves at a relatively low speed and the emphasis effect of emphasizing an image a portion which moves at a relatively high speed can be improved as compared to the conventional art in which an ultrasonic image after non-linear process is filtered.

REFERENCES:
patent: 5177691 (1993-01-01), Welles et al.
patent: 5261280 (1993-11-01), Matzuk

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