 技術摘要： |
A computer-assisted method for quantitative characterization and treatment of ventricular fibrillation includes preprocessing a time series of an atrial fibrillation signal obtained from a patient, segmenting the time series of the AF signal into activation segments by the computer system, obtaining local activation waveforms (LAW) from the activation segments, determining degrees of similarity between the LAWs, and identifying one or more critical regions in the patient's atria if the LAWs have degrees of similarity exceeding a first threshold value.
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| 解決的問題或達成的功效： |
Atrial fibrillation (AF) is the most common type of tachyarrhythmia encountered in clinical practice. Pulmonary vein isolation (PVI) has become the mainstream catheter ablation technique for AF. For persistent AF, substrate modification with complex fractionated electrogram (CFE) ablation is considered to be necessary to patients who have not responded to PVI.
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| 應用領域： |
Atrial fibrillation
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| 適用產品： |
心電圖儀器
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| IPC： |
A61B5/046
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| Claim 1： |
1. A computer-assisted method for quantitative characterization and treatment of ventricular fibrillation, comprising:
preprocessing, by a computer system, a time series of an atrial fibrillation (AF) signal obtained from a patient;
segmenting the time series of the AF signal into activation segments by the computer system;
obtaining local activation waveforms (LAW) from the activation segments;
determining degrees of similarity between the LAWs; and
identifying one or more critical regions in the patient's atria if the LAWs have degrees of similarity exceeding a first threshold value.
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