Method and apparatus for estimating diameter of an artery using

Details Method and apparatus for estimating diameter of an artery using Method and apparatus for estimating diameter of an artery using

1995-01-27

1996-03-05

Jaworski, Francis

Surgery

Truss

Pad

128661100, A61B 800

Patent

active

054958520

ABSTRACT:
An improved apparatus and method for measuring the diameter of an artery utilizes an ultrasonic imaging plane that is rotated slightly from the centerline of an artery to produce a "skew" image of the artery. The invention detects edge points on the image of near and far walls of the artery. It fits curves to the near and far end edge points and measures distances between the curves. Alternatively, it fits one curve to all the edge points and measures a parameter (such as minor diameter of an ellipse) of the curve. Finally, it estimates arterial diameter from the measurement.

REFERENCES:
patent: 4790322 (1988-12-01), Iinuma
patent: 5107838 (1992-04-01), Yamaguchi
patent: 5151856 (1992-09-01), Halmann et al.

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