Method and apparatus for quantifying beat-to-beat variability in

Surgery – Truss – Pad

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128702, 128703, 128704, 364417, 364421, 364500, G01R 2302

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active

047321571

ABSTRACT:
Myocardial electrical stability is assessed by sampling an ECG waveform at corresponding fiducial locations for a plurality of beats and creating a scatter plot of the i.sup.th sample versus the (i- 1)th sample. A parameter .lambda. is determined which minimizes the sum of the total distances of the points of the scatter plot to an equation x(i)= 4.lambda.x(i- 1)[ 1-x(i- 1)]. The value of the parameter .lambda. is related to the electrical stability of the heart.

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