Method of analyzing regional ventricular function utilizing cent

Details Method of analyzing regional ventricular function utilizing cent Method of analyzing regional ventricular function utilizing cent

1989-07-20

1990-06-26

Jaworski, Francis

Surgery

Truss

Pad

128653R, A61B 500

Patent

active

049363115

ABSTRACT:
A method of analyzing regional ventricular function utilizing centerline method capable of producing sufficiently natural results in the vicinity of the apex. The method includes the step of drawing a line between the end-diastolic and end-systolic contours, which is converting to an intersection of the end-systolic contour and a major axis joining the apex of the end-diastolic contour and a midpoint of an aortic valve portion of the end-diastolic contour, whenever a line to be drawn between the end-diastolic and end-systolic contour is going to intersect with the major axis. In the method, all the lines to be drawn between the end-diastolic and end-systolic contours are drawn sequentially in a first direction from one end of an aortic valve portion toward an apex for one half of the end-diastolic contour, and in a second direction from another end of the aortic valve portion toward the apex, which is opposite to the first direction, for other half of the end-diastolic contour.

REFERENCES:
patent: 4637400 (1987-01-01), Marcus
Sigwort, U. et al., "Videometric Analysis of Left Ventricular Augiograms", Electromedia No. 2, pp. 38-42, 1976.
Kaneko, T. et al., "Straight Line Approximation for LV Boundary from Cardio Cine Angiogram", IEEE BME Transactions, vol. BME-20, No. 6, Nov. 1973, pp. 413-416.
Santamore, W. P. et al., "Comparative LV Volume Study Methods", IEEE BME Trans., vol. BME-20, No. 6, pp. 417-421, Nov. 1973.
Sheehan et al., "Advantages and Applications of the Centerline Method for Characterizing Regional Ventricular Function," Circulation, vol. 74, No. 2, pp. 293-305, Aug. 1986.

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