Rate, spectra, amplitude histograms, and zero-crossings as identifiers of fibrillation in the intracardiac electrogram

Arzbaecher, Rober; Bump, Thomas; Jenkins, J.; Noh, Ki Yong; Ripley, K.L.

doi:10.1016/0022-0736(88)90075-1

Journal of Electrocardiology

1988

DOI: 10.1016/0022-0736(88)90075-1

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Rate, spectra, amplitude histograms, and zero-crossings as identifiers of fibrillation in the intracardiac electrogram

Rober Arzbaecher¹,

Thomas Bump²,

J. Jenkins³

et al.

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Discrimination of atrial fibrillation from regular atrial rhythms by spatial precision of local activation direction

Schoenwald

Sahakian²,

Swiryn

1997

IEEE Trans. Biomed. Eng.

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This study tests the hypothesis that atrial fibrillation (AFib) can be discriminated from regular atrial rhythms by a measure of the variation in local activation direction. Human endocardial atrial recordings of AFib, sinus rhythm, atrial flutter, and supraventricular tachycardia were collected using a catheter with orthogonally placed electrodes, and the direction of each activation was calculated using methods previously described by our laboratory. Each recording was divided into segments containing 100 activations, and the spatial precision for each segment was calculated in three dimensions, as well as in each of the three two-dimensional (2-D) planes. The three-dimensional (3-D) spatial precision for 1161 segments of AFib in 11 recordings ranged from 0.09-0.85 (mean = 0.45), whereas the spatial precision for 138 segments of regular rhythms in 28 recordings was > or = 0.91 in all but four instances. The 2-D spatial precision values overlapped for all rhythms. The results indicate that 3-D spatial precision of local activation direction is a useful discriminator of AFib.

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Discrimination of atrial fibrillation from regular atrial rhythms by spatial precision of local activation direction

Schoenwald

Sahakian²,

Swiryn

1997

IEEE Trans. Biomed. Eng.

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show abstract

Detecting atrial fibrillation using spatial precision

Schoenwald

Sahakian

Swiryn

1996

IEEE Eng. Med. Biol. Mag.

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Rate, spectra, amplitude histograms, and zero-crossings as identifiers of fibrillation in the intracardiac electrogram

Cited by 2 publications

References 0 publications

Discrimination of atrial fibrillation from regular atrial rhythms by spatial precision of local activation direction

Discrimination of atrial fibrillation from regular atrial rhythms by spatial precision of local activation direction

Detecting atrial fibrillation using spatial precision

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