Method of electrocardiographic signal processing and apparatus for performing the method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F25%3A00645044" target="_blank" >RIV/68081731:_____/25:00645044 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00159816:_____/25:00082530

Výsledek na webu

<a href="https://worldwide.espacenet.com/patent/search/family/068732925/publication/EP3827743B1?q=pn%3DEP3827743B1" target="_blank" >https://worldwide.espacenet.com/patent/search/family/068732925/publication/EP3827743B1?q=pn%3DEP3827743B1</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Method of electrocardiographic signal processing and apparatus for performing the method

Popis výsledku v původním jazyce

The present invention provides a method of processing of electrocardiogram, which comprises the following steps:- providing an electrocardiogram comprising signals in at least two channels,- selecting at least two frequency ranges of the signal in each of the said at least two channels,- calculating an envelope for the signal in each frequency range in each channel,- dividing the calculated envelope of the signal in each frequency range in each channel into QRS complex segment envelopes,- computing an average or median envelope as an average or mean of QRS complex segment envelopes for each frequency range in each channel,- optionally performing baseline correction for each average or median envelope by subtracting mean or median value from an interval in which QRS complex is not present (i.e., interval between QRS complexes) to remove noise background,- normalizing the average or median envelope to obtain a normalized average or median envelope for each frequency range in each channel, wherein the normalization is performed by dividing the average or median envelope of each frequency range in each channel by its integral or by a maximal value reached in the average or median envelope, in each frequency range and each channel separately, wherein the integral or the maximal value are calculated within an interval of a minimum of 50 ms before the position of QRS complex and minimum 50 ms after the position of QRS complex,- calculating a signal average or median envelope from the normalized average or median envelopes of all frequency ranges within each channel, and- calculating a first temporal duration (Vdi) of the signal average or median envelope as time length of a horizontal line crossing the signal average or median envelope, wherein the horizontal line is at a level corresponding to 10-70 percent of the maximum value of the signal average or median envelope, and/or- calculating a second temporal duration (AVdi) of the signal average or median envelope as time difference between the first and the last intersection of the signal average or median envelope, wherein the horizontal line is at a level corresponding to 10-70 percent of the maximum value of the signal average or median envelope or of the final average or median envelope,- determination of the local depolarization duration of heart ventricles in units of time as the first temporal duration, and/or determination the total local depolarization duration of heart ventricles in units of time as the second temporal duration.

Název v anglickém jazyce

Method of electrocardiographic signal processing and apparatus for performing the method

Popis výsledku anglicky

The present invention provides a method of processing of electrocardiogram, which comprises the following steps:- providing an electrocardiogram comprising signals in at least two channels,- selecting at least two frequency ranges of the signal in each of the said at least two channels,- calculating an envelope for the signal in each frequency range in each channel,- dividing the calculated envelope of the signal in each frequency range in each channel into QRS complex segment envelopes,- computing an average or median envelope as an average or mean of QRS complex segment envelopes for each frequency range in each channel,- optionally performing baseline correction for each average or median envelope by subtracting mean or median value from an interval in which QRS complex is not present (i.e., interval between QRS complexes) to remove noise background,- normalizing the average or median envelope to obtain a normalized average or median envelope for each frequency range in each channel, wherein the normalization is performed by dividing the average or median envelope of each frequency range in each channel by its integral or by a maximal value reached in the average or median envelope, in each frequency range and each channel separately, wherein the integral or the maximal value are calculated within an interval of a minimum of 50 ms before the position of QRS complex and minimum 50 ms after the position of QRS complex,- calculating a signal average or median envelope from the normalized average or median envelopes of all frequency ranges within each channel, and- calculating a first temporal duration (Vdi) of the signal average or median envelope as time length of a horizontal line crossing the signal average or median envelope, wherein the horizontal line is at a level corresponding to 10-70 percent of the maximum value of the signal average or median envelope, and/or- calculating a second temporal duration (AVdi) of the signal average or median envelope as time difference between the first and the last intersection of the signal average or median envelope, wherein the horizontal line is at a level corresponding to 10-70 percent of the maximum value of the signal average or median envelope or of the final average or median envelope,- determination of the local depolarization duration of heart ventricles in units of time as the first temporal duration, and/or determination the total local depolarization duration of heart ventricles in units of time as the second temporal duration.

Druh

P - Patent

CEP obor

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OECD FORD obor

30201 - Cardiac and Cardiovascular systems

Projekt

<a href="/cs/project/FW03010434" target="_blank" >FW03010434: Neinvazivní mapování elektrické aktivity srdce - 3D VDI mapping</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Číslo patentu nebo vzoru

EP3827743

Vydavatel

EPO_1 -

Název vydavatele

European Patent Office

Místo vydání

Munich, The Hague, Berlin, Vienna, Brussels

Stát vydání

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Datum přijetí

1. 1. 2025

Název vlastníka

Institute of Scientific Instruments of The Czech Academy of Sciences, v. v. i. - St. Anne’s University Hospital Brno - Charles University - CARDION s.r.o.

Způsob využití

B - Výsledek je využíván orgány státní nebo veřejné správy

Druh možnosti využití

A - K využití výsledku jiným subjektem je vždy nutné nabytí licence