For characterizing a heart condition

Details For characterizing a heart condition For characterizing a heart condition

1985-08-13

1987-01-20

Howell, Kyle L.

Surgery

Truss

Pad

128695, A61B 500

Patent

active

046374000

ABSTRACT:
A heart is medically imaged to provide outlines of the end systole, mid systole and end diastole images of the heart. There is provided for each outline a sequence of functional relationships for the normalized curvature of a point to the normalized distance along the outline from the apex of each outline to provide a normalized curvature distribution function for each outline that are differentially combined to provide a normalized curvature difference function that is displayed. The latter is compared with a normal average normalized curvature difference function representative of normal hearts to evaluate the heart condition.

REFERENCES:
patent: 3811040 (1974-05-01), Weinfurt et al.
patent: 3980076 (1976-09-01), Wikswo, Jr. et al.
patent: 4101961 (1978-07-01), Reiber
Kaneko et al, "Straight-Line Approximation for the Boundary of the Left Ventricular Chamber from a Cardiac Cineangiogram", IEEE Transactions on Biomedical Engineering, vol. BME-20, No. 6, Nov. 1973, pp. 413-416.
Santamore et al, "A Comparative Study of Various Single-Plane Cineangiocardiographic Methods to Measure Left Ventricular Volume", IEEE Transactions on Biomedical Engineering, vol. BME-20, No. 6, Nov. 1973, pp. 417-421.

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