Median temporal filtering of ultrasonic data

Details Median temporal filtering of ultrasonic data Median temporal filtering of ultrasonic data

1994-05-09

1995-05-09

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

054131057

ABSTRACT:
A method and apparatus of processing signals in an ultrasonic imaging system for imaging a living subject. The ultrasonic imaging system including an ultrasonic emitter, receptor and display. N temporally-spaced signals from ultrasound produced by a plurality of temporally-spaced referenced pulses are obtained and the amplitude (power) of each of the N temporally-spaced signals is determined. In various embodiments, N is an odd integer, usually, 1, 3, 5 or 7, depending on a user-setting. A median temporal signal of the N amplitude signals is then obtained. In implemented embodiments, the median is obtained by sorting a list of the N amplitude signals until (N+1)/2 signals have been sorted. The median is temporally filtered with a previous signal displayed on the display of the ultrasonic imaging system, wherein the temporal filtering including a filtering coefficient having a magnitude approximating a cardiac cycle of the living subject. Such processing is especially useful for angiography studies, wherein artifacts are removed providing a higher-quality image than in the prior art.

REFERENCES:
patent: 4540946 (1985-09-01), Sainz et al.
patent: 4770184 (1988-09-01), Greene, Jr. et al.
patent: 4818938 (1989-04-01), Sattin et al.

Affiliated with

Also associated with

Rating

Median temporal filtering of ultrasonic data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Median temporal filtering of ultrasonic data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Median temporal filtering of ultrasonic data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1699127