초록 ▼

A method and system for discrimination of supraventricular tachycardia and ventricular tachycardia events. Morphological features points are extracted from normal sinus rhythm (NSR) complexes and used to generate a NSR template. A numerical convolution is performed using the NSR template and the fea

A method and system for discrimination of supraventricular tachycardia and ventricular tachycardia events. Morphological features points are extracted from normal sinus rhythm (NSR) complexes and used to generate a NSR template. A numerical convolution is performed using the NSR template and the feature points for each sensed NSR to give a NSR filter output. Using a plurality of NSR complexes, a median NSR filter output template is determined, where the median NSR filter output template has a median value for each value in the NSR filter output. The median NSR filter output template is then used during a tachycardia event to distinguish tachycardia events as either ventricular tachycardia events or supraventricular tachycardia events.

대표청구항 ▼

What is claimed is: 1. A method, comprising:storing a normal sinus rhythm (NSR) output template;sensing cardiac signals including tachycardia complexes;extracting tachycardia feature points from the tachycardia complexes;generating a tachycardia complex output using the NSR output template and the t

What is claimed is: 1. A method, comprising:storing a normal sinus rhythm (NSR) output template;sensing cardiac signals including tachycardia complexes;extracting tachycardia feature points from the tachycardia complexes;generating a tachycardia complex output using the NSR output template and the tachycardia feature points for each of the tachycardia complexes;comparing the tachycardia complex output to the NSR output template; andclassifying the tachycardia complexes as either ventricular tachycardia (VT) complexes or supraventricular tachycardia (SVT) complexes using an outcome of the comparison of the tachycardia complex output to the NSR output template.