Atrial fibrillation detection system and methods of use

A method for analyzing and identifying atrial fibrillation signs of a user, the method comprising the steps of:

• receiving, via to an at least one computing device, an at least one biosignal associated with heart activity of the user as captured by an at least one beat detector;
• the at least one computing device representing each of an at least one beat of the biosignal with an univocal and repeatable point;
• the at least one computing device calculating an interbeat interval between each of the at least one beat and an immediately preceding beat of the biosignal;
• the at least one computing device generating an at least one interbeat interval sequence consisting of consecutive interbeat intervals of the biosignal;
• the at least one computing device dividing the interbeat interval sequence into a plurality of finite sequence segments of a pre-defined temporal length consisting of consecutive interbeat intervals of the interbeat interval sequence;
• and
• for each sequence segment:
• the at least one computing device calculating an interbeat interval difference between each of the at least one interbeat interval and an immediately preceding interbeat interval of said sequence segment;
• the at least one computing device encoding an uncorrelated nature of three consecutive interbeat interval differences as a plot point on a scatter plot;
• the at least one computing device encoding the scatter plot by generating a histogram that represents an amount of plot points plotted in each particular region of the scatter plot, the histogram containing a pre-defined number of bins, with each bin having a pre-defined bin width;
• the at least one computing device normalizing the histogram by dividing a bin count of each bin by the total sum of plot points in the scatter plot;
• the at least one computing device transmitting the normalized histogram to an at least one classifier in selective communication with the at least one computing device;
• and
• the at least one computing device determining, via the classifier, a probability of said sequence segment being an atrial fibrillation rhythm or a non-atrial fibrillation rhythm.

An atrial fibrillation detection system for analyzing and identifying atrial fibrillation signs of a user, the system comprising:

• an at least one computing device configured for receiving and processing an at least one biosignal associated with heart activity of the user as captured by an at least one beat detector, and subsequently transmitting said processed at least one biosignal to an at least one classifier configured for determining a probability of the biosignal being an atrial fibrillation rhythm or a non-atrial fibrillation rhythm;
• wherein, upon receiving the at least one biosignal from the at least one beat detector, the at least one computing device is further configured for:
• representing each of an at least one beat of the biosignal with an univocal and repeatable point;
• calculating an interbeat interval between each of the at least one beat and an immediately preceding beat of the biosignal;
• generating an at least one interbeat interval sequence consisting of consecutive interbeat intervals of the biosignal;
• dividing the interbeat interval sequence into a plurality of finite sequence segments of a pre-defined temporal length consisting of consecutive interbeat intervals of the interbeat interval sequence;
• and
• for each sequence segment:
• encoding said sequence segment by generating a scatter plot that represents the dispersion of data associated with the interbeat interval sequence;
• encoding the scatter plot by generating a histogram that represents an amount of plot points plotted in each particular region of the scatter plot;
• normalizing the histogram by dividing a bin count of each bin by the total sum of plot points in the scatter plot;
• transmitting the normalized histogram to an at least one classifier in selective communication with the at least one computing device;
• and
• determining, via the classifier, a probability of said sequence segment being an atrial fibrillation rhythm or a non-atrial fibrillation rhythm.