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Zenichi Ihara

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Related publications (6)

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Transfer matrices for deriving the vectorcardiogram: a consumer guide

Zenichi Ihara

Background In the literature, several different transfer matrices have been presented for deriving the vectorcardiogram (VCG) from the signals observed using a limited set of electrodes. Even when the electrode locations were identical, like 9 of the stand ...

2007

Adaptation of the standard 12-lead electrocardiogram system dedicated to the analysis of atrial fibrillation

Vincent Jacquemet, Zenichi Ihara

Objective: The objective of the study was to design a lead system aimed at studying atrial fibrillation (AF), while being anchored to the standard 12-lead system. Methods: The location of 4 of the 6 precordial electrodes was optimized while leaving the rem ...

2007

Atrial repolarization as observable in the PQ interval

Zenichi Ihara

Objective: To study the involvement of atrial repolarization in body surface potentials. Methods: Electrocardiograms of healthy subjects were recorded using a 64-lead system. The data analysis focused on the PQ intervals, while devoting special attention t ...

2006

Design and performance of lead systems for the analysis of atrial signal components in the ECG

Zenichi Ihara

For over a century, electrocardiology has been observing human cardiac activity through recordings of electrocardiograms (ECG). The potential differences derived from the nine electrodes of the standard 12-lead ECG, placed at their designated positions, ar ...

EPFL2006

Transfer matrices for deriving the vectorcardiogram: a consumer guide

Zenichi Ihara

In the literature, several different transfer matrices have been presented for deriving the vectorcardiogram (VCG) from the signals observed using a limited set of electrodes. Even when the electrode locations were identical, like 9 of the standard 12-lead ...

Elsevier2007

Evaluation of Ablation Patterns Using a Biophysical Model of Atrial Fibrillation

Jean-Marc Vesin, Vincent Jacquemet, Lukas Kappenberger, Zenichi Ihara, Lam Dang

Kluwer Academic Publishers, Springer2005