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OBJECTIVES Using computer models for the study of complex atrial arrhythmias such as atrial fibrillation is computationally demanding as long observation periods in the order of tens of seconds are required. A well established approach for reducing computational workload is to approximate the thin atrial walls by curved monolayers. On the other hand, the(More)
OBJECTIVES Clinical data was analyzed to find an efficient way to localize the accessory pathway in patients with ventricular preexcitation. METHODS The delta wave morphologies and ablation sites of 186 patients who underwent catheter ablation were analyzed and an algorithm ("locAP") to localize the accessory pathway was developed from the 84 data sets(More)
Spectral analysis of ventricular fibrillation (VF) ECG has been used for predicting countershock success, where the Fast Fourier Transformation (FFT) is the standard spectral estimator. Autoregressive (AR) spectral estimation should compute the spectrum with less computation time. This study compares the predictive power and computational performance of(More)
Recent findings indicate that stable organized centers of rapid activity (mother rotors) are the maintaining mechanism of ventricular fibrillation (VF). A computer model study was performed for understanding how intracardiac cellular activity is reflected at the body surface. The model contained a driving region of fast periodic activity (22 Hz). On the(More)
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