VENTRICULAR FIBRILLATION DETECTION

摘要

Systems and techniques are disclosed for determining the onset and offset of a ventricular fibrillation event and for distinguishing ventricular fibrillation from noise. In some examples, an electrocardiogram (ECG) signal is obtained; a transform is applied to the ECG signal to obtain an analytical pair, the analytical pair including the ECG signal and the transformed ECG signal; a speed-amplitude is determined from the analytical pair; and an onset of a ventricular fibrillation event is identified based at least one of a value of a cost function of the speed-amplitude over a window and a quantity of occurrences the speed-amplitude crosses a threshold over the window.

主权项

1. A method for detecting a ventricular fibrillation event in an electrocardiogram (ECG) signal, the method comprising:
applying a transform to the an ECG signal to obtain an analytical pair, the analytical pair including the ECG signal and the transformed ECG signal; determining a speed-amplitude from the analytical pair; and identifying an onset or offset of a ventricular fibrillation event based on a value of a cost function of the speed-amplitude over a window.