Scatter diagram analysis system and method for discriminating ve

Surgery – Truss – Pad

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128706, A61B 504

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active

054048800

ABSTRACT:
A computationally efficient two channel scatter diagram analysis algorithm for distinguishing monomorphic ventricular tachycardia (VT) from polymorphic ventricular tachycardia and ventricular fibrillation (VF). Scatter diagram analysis plots the amplitude from one channel (morphology) versus the amplitude from another channel (rate) on a graph with a fifteen-by-fifteen grid. A fraction or percentage of the 225 grid blocks occupied by at least one sample point is then determined. Monomorphic VT traces nearly the same path in space and occupies a smaller percentage of the graph than a non-regular rhythm such as polymorphic VT or VF.

REFERENCES:
patent: 4422459 (1983-12-01), Simson
patent: 5000189 (1991-03-01), Throne et al.
patent: 5211177 (1993-05-01), Chesney et al.
DiCarlo, Lorenzo A., et al., "Differentiation of Ventricular Tachycardia from Ventricular Fibrillation Using Intraventricular Electrogram Morphology", Sep. 1992.
Throne, Robert D., "Detecting Ventricular Fibrillation Using Efficient Techniques for Computing a Normalized Autocorrelation", Comput. Biol. Med., vol. 23, No. 4, pp. 317-325, 1993.
Throne, Robert D., et al., "A Comparison of Four New Time-Domain Techniques for Discriminating Monomorphic Ventricular Tachycardia from Sinus Rhythm Using Ventricular Waveform Morphology", IEEE Transactions on Biomedical Engineering, vol. 38, No. 6, Jun. 1991, pp. 561-570.
Thakor, Nitish V., et al., "Ventricular Tachycardia and Fibrillation Detection by a Sequential Hypothesis Testing Algorithm", IEEE Transactions on Biomedical Engineering, vol. 37, No. 9, Sep. 1990, pp. 837-843.
Camm, A. John, et al., "Tachycardia Recognition by Implantable Electronic Devices", PACE, vol. 10, Sep.-Oct. 1987, pp. 1175-1277.
Davies, D. Wyn. et al., "Detection of Pathological Tachycardia by Analysis of Electrogram Morphology", PACE, vol. 9, Mar.-Apr. 1986, pp. 200-208.
Langberg, Jonathan J., et al., "Identification of ventricular tachycardia with use of the morphology of the endocardial electrogram", Circulation, vol. 77, No. 6, Jun. 1988, pp. 1363-1369.
Ripley, Kenneth L., et al., "Evaluation of Techniques for Recognition of Ventricular Arrhythmias by Implanted Devices", IEEE Transactions on Biomedical Engineering, vol., 36, No. 6, Jun. 1989, pp. 618-624.
Throne, Robert D., et al., "The Bin Area Method: A Computationally Efficient Technique for Anslysis of Ventricular and Atrial Intracardiac Electrograms", PACE, vol. 13, Oct. 1990, pp. 1286-1297.
Ropella, Kristina M., et al., "The Coherence Spectrum: A Quantative Discriminator of Fibrillatory and Nonfibrillatory Cardiac Rhythms", Circulation, vol. 80, No. 1, Jul. 1989, pp. 112-119.
Ropella, Kristina M., et al., "Differentiation of Ventricular Tachyarrhythmias", Circulation, vol. 82, No. 6, Dec. 1990, pp. 2035-2043.
Ropella, Kristina M., et al., "Effects of procainamide on intra-arterial electrograms during atrial fibrillation: implication for detection algorithms", Circulation, vol. 77, No. 5, May 1988, pp. 1047-1054.
S. Chen et al., "Ventricular fibrillation detection by a regression test on the autocorrelation function," Medical & Biol. Eng. & Comput., 1987, 25, 241-249.
D. Lin et al., "Identification of Ventricular Tachycardia Using Intracavitary Ventricular Electrograms: Analysis of Time and Frequency Domain Patterns," PACE, vol. 11, 1592-1606, Nov. 1988, Part I.

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