Method and apparatus for ventricular fibrillation detection

Details Method and apparatus for ventricular fibrillation detection Method and apparatus for ventricular fibrillation detection

1997-08-08

1999-03-02

Kamm, William E.

Surgery

Diagnostic testing

Cardiovascular

A61B 5046

Patent

active

058763490

ABSTRACT:
Provided are a method and apparatus for assessing the chaotic nature of a waveform representation of heart function. The method and apparatus accomplish their objects via the following. An indicator of triangular-like components within a waveform representation of heart function is calculated. An indicator of an area encompassed by the waveform representation indicative of heart function is calculated. A ratio is calculated utilizing the calculated indicator of an area and calculated indicator of triangular-like components to assess the chaotic nature of the waveform representation of heart function. Additionally, a ventricular fibrillation index is calculated. The calculated ventricular fibrillation index is utilized, in two dimensional space, with the ratio that is calculated utilizing the calculated indicator of an area and the calculated indicator of triangular-like components to assess the likelihood of ventricular fibrillation based upon waveform representation of heart function. Further additionally, a minimum ventricular fibrillation index is calculated. The calculated minimum ventricular fibrillation index is utilized, in two dimensional space, with the ratio that is calculated utilizing the calculated indicator of an area and the calculated indicator of triangular-like components to assess the likelihood of ventricular fibrillation based upon waveform representation of heart function. The minimum calculated ventricular fibrillation is also utilized in one dimensional space to assess the likelihood of ventricular fibrillation based upon waveform representation of heart function.

REFERENCES:
patent: 4181135 (1980-01-01), Andressen et al.
patent: 5439004 (1995-08-01), Duong-Van et al.
S. Kuo and R. Dillman, "Computer Detection of Ventricular Fibrillation", Computers in Cardiology, pp. 347-349, Sep., 1978.

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