US 2016/0106378 A1 · SYSTEM AND METHOD FOR DETECTING AN ARRHYTHMIC CARDIAC EVENT FROM A CARDIAC SIGNAL

Abstract

What is disclosed is a system and method for detecting an arrhythmic or non-arrhythmic event from a cardiac signal obtained from a subject. In one embodiment, a plurality of different cardiac signals are received and are transformed into frequency domain signals which, in turn, are changed such that a dominant frequency in each of the signals is substantially aligned to form a matrix of feature vectors. The feature matrix is used to train a classifier. A cardiac signal from the subject is received and transformed to a frequency domain signal. The frequency domain signal is changed such that a dominant is substantially aligned with a dominant frequency of signals used to train the classifier. The subject's frequency domain signal is provided as a new feature vector to the classifier. The classifier uses the new feature vector to classify the subject as having an arrhythmic or a non-arrhythmic event.

Claims25

Dependent claims

A method for detecting a cardiac event from a cardiac signal of a subject, the method comprising:

receiving a plurality of different cardiac signals;
transforming each of said cardiac signals to frequency domain signals;
changing said frequency domain signals such that a dominant frequency in each of said signals are substantially aligned to form a matrix of feature vectors;
training a classifier with said matrix of feature vectors;
receiving a cardiac signal of a subject;
transforming said subject's cardiac signal to a frequency domain signal;
changing said subject's frequency domain signal such that a dominant frequency in said signal is substantially aligned with said dominant frequency of said signals used to train said classifier;
and
providing said subject's frequency domain signal as a new feature vector to said classifier, said classifier using said new feature vector to classify said subject as having one of:
an arrhythmic event, and a non-arrhythmic event.

7 more elements

A system for detecting a cardiac event from a cardiac signal of a subject, the system comprising:

a classifier;
and
a processor in communication with a memory and said classifier, said processor executing machine readable instructions for performing:
retrieving said plurality of different cardiac signals;
transforming each of said cardiac signals to frequency domain signals;
changing said frequency domain signals such that a dominant frequency in each of said signals are substantially aligned to form a matrix of feature vectors;
training said classifier with said matrix of feature vectors;
receiving a cardiac signal of a subject;
transforming said subject's cardiac signal to a frequency domain signal;
changing said subject's frequency domain signal such that a dominant frequency in said signal is substantially aligned with said dominant frequency of said signals used to train said classifier;
and
providing said subject's frequency domain signal as a new feature vector to said classifier, said classifier using said new feature vector to classify said subject as having one of:
an arrhythmic event, and a non-arrhythmic event.

10 more elements

Dependencies are inferred from the claim text.

System and method for detecting an arrhythmic cardiac event from a cardiac signal

Life of this patent

System and method for detecting an arrhythmic cardiac event from a cardiac signal

Life of this patent

Abstract

Claims25