4 research outputs found

    ΠžΠ±Π·ΠΎΡ€ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² автоматичСской диагностики сСрдСчной Π°Ρ€ΠΈΡ‚ΠΌΠΈΠΈ для принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ ΠΎ нСобходимости провСдСния дСфибрилляции

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    Ventricular fibrillation is considered the most common cause of sudden cardiac arrest. The fibrillation, and ventricular tachycardia often preceding it, are cardiac rhythms that may respond to emergency electroshock therapy and return to normal sinus rhythm when diagnosed early after cardiac arrest with the restoration of adequate cardiac pumping function. However, manually checking ECG signals on the existence of a pattern of such arrhythmias is a risky and time-consuming task in stressful situations and practically impossible in the absence of a qualified medical specialist. Therefore, systems of the computer classification of arrhythmias with the function of making a decision on the necessity of electric cardioversion with the parameters of a high-voltage pulse calculated adaptively for each patient are widely used for the automatic diagnosis of such conditions. This paper discusses methods of analyzing the electrocardiographic signal taken from the electrodes of an external automatic or semi-automatic defibrillator in order to make a decision on the necessity for defibrillation, which are applicable in the embedded software of automatic and semiautomatic external defibrillators. The paper includes an overview of applicable filtering techniques as well as subsequent algorithms for extracting, classifying and compressing features for the ECG signal.Β Β Lipchak D. A., Chupov A. A. Methods of Signal Analysis for Automatic Diagnosis of Shockable Cardiac Arrhythmias: A Review. Ural Radio Engineering Journal. 2021;5(4):380–409. (In Russ.) DOI: 10.15826/ urej.2021.5.4.004. Ѐибрилляция ΠΆΠ΅Π»ΡƒΠ΄ΠΎΡ‡ΠΊΠΎΠ² сСрдца считаСтся Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто Π²ΡΡ‚Ρ€Π΅Ρ‡Π°ΡŽΡ‰Π΅ΠΉΡΡ ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ Π²Π½Π΅Π·Π°ΠΏΠ½ΠΎΠΉ остановки сСрдца. Вакая фибрилляция ΠΈ часто ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²ΡƒΡŽΡ‰Π°Ρ Π΅ΠΉ ТСлудочковая тахикардия – это Ρ€ΠΈΡ‚ΠΌΡ‹ сСрдца, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΌΠΎΠ³ΡƒΡ‚ Ρ€Π΅Π°Π³ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π½Π° ΡΠΊΡΡ‚Ρ€Π΅Π½Π½ΡƒΡŽ ΡΠ»Π΅ΠΊΡ‚Ρ€ΠΎΡˆΠΎΠΊΠΎΠ²ΡƒΡŽ Ρ‚Π΅Ρ€Π°ΠΏΠΈΡŽ ΠΈ Π²Π΅Ρ€Π½ΡƒΡ‚ΡŒΡΡ ΠΊ Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΠΌΡƒ синусовому Ρ€ΠΈΡ‚ΠΌΡƒ ΠΏΡ€ΠΈ Ρ€Π°Π½Π½Π΅ΠΉ диагностикС послС остановки сСрдца с восстановлСниСм Π°Π΄Π΅ΠΊΠ²Π°Ρ‚Π½ΠΎΠΉ насосной Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ сСрдца. Однако ручная ΠΏΡ€ΠΎΠ²Π΅Ρ€ΠΊΠ° сигналов Π­ΠšΠ“ Π½Π° Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ ΠΏΠ°Ρ‚Ρ‚Π΅Ρ€Π½Π° Ρ‚Π°ΠΊΠΎΠΉ Π°Ρ€ΠΈΡ‚ΠΌΠΈΠΈ являСтся слоТной аналитичСской Π·Π°Π΄Π°Ρ‡Π΅ΠΉ, Ρ‚Ρ€Π΅Π±ΡƒΡŽΡ‰Π΅ΠΉ Π½Π΅ΠΌΠ΅Π΄Π»Π΅Π½Π½ΠΎΠ³ΠΎ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π² стрСссовой ситуации, практичСски Π½Π΅Π²Ρ‹ΠΏΠΎΠ»Π½ΠΈΠΌΠΎΠΉ Π² отсутствиС ΠΊΠ²Π°Π»ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ мСдицинского спСциалиста. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ для автоматичСской диагностики острых состояний ΡˆΠΈΡ€ΠΎΠΊΠΎΠ΅ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ»ΠΈ систСмы ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ классификации Π°Ρ€ΠΈΡ‚ΠΌΠΈΠΉ с Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠ΅ΠΉ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΎ нСобходимости провСдСния элСктрокардиотСрапии с ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π°ΠΌΠΈ Π²Ρ‹ΡΠΎΠΊΠΎΠ²ΠΎΠ»ΡŒΡ‚Π½ΠΎΠ³ΠΎ ΠΈΠΌΠΏΡƒΠ»ΡŒΡΠ°, вычислСнного Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎ для ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°. Π’ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Π΅ рассмотрСны ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Π°Π½Π°Π»ΠΈΠ·Π° элСктрокардиографичСского сигнала, снимаСмого с элСктродов Π½Π°Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ автоматичСского ΠΈΠ»ΠΈ полуавтоматичСского дСфибриллятора, с Ρ†Π΅Π»ΡŒΡŽ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΎ нСобходимости оказания дСфибрилляции, ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΡ‹Π΅ Π²ΠΎ встроСнном ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½ΠΎΠΌ обСспСчСнии автоматичСских ΠΈ полуавтоматичСских Π²Π½Π΅ΡˆΠ½ΠΈΡ… дСфибрилляторов. Π Π°Π±ΠΎΡ‚Π° Π²ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ ΠΎΠ±Π·ΠΎΡ€ ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΡ‹Ρ… ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Ρ„ΠΈΠ»ΡŒΡ‚Ρ€Π°Ρ†ΠΈΠΈ, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΡ… Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² извлСчСния, классификации ΠΈ сТатия Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½Ρ‹Ρ… ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΎΠ² для сигнала Π­ΠšΠ“.Β Β Π›ΠΈΠΏΡ‡Π°ΠΊ Π”. А., Π§ΡƒΠΏΠΎΠ² А. А. ΠžΠ±Π·ΠΎΡ€ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² автоматичСской диагностики сСрдСчной Π°Ρ€ΠΈΡ‚ΠΌΠΈΠΈ для принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ ΠΎ нСобходимости провСдСния дСфибрилляции. Ural Radio Engineering Journal. 2021;5(4):380–409. DOI: 10.15826/urej.2021.5.4.004.

    Methods of Signal Analysis for Automatic Diagnosis of Shockable Cardiac Arrhythmias: A Review

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    Ventricular fibrillation is considered the most common cause of sudden cardiac arrest. Ventricular fibrillation, and ventricular tachycardia often preceding it, are cardiac rhythms that can respond to emergency electroshock therapy and return to normal sinus rhythm when diagnosed early after cardiac arrest with the restoration of adequate cardiac pumping function. However, manually checking ECG signals for the presence of a pattern of such arrhythmias is a risky and time- consuming task in stressful situations and practically impossible in the absence of a qualified medical specialist. Therefore, for the automatic diagnosis of such conditions, systems for the computer classification of arrhythmias to decide on the need for electric cardioversion with the parameters of a high-voltage pulse, calculated adaptively for each patient, are widely used. This paper discusses methods for analyzing the electrocardiographic signal taken from external automatic or semi-automatic defibrillator electrodes to decide the need for defibrillation, which is applicable in the embedded software of automatic, semi-automatic external defibrillators. The paper includes an overview of applicable filtering techniques and subsequent algorithms for extracting, classifying, and compressing features for the ECG signal. Both advantages and disadvantages are discussed for the studied algorithms. © 2022 IEEE.Russian Foundation for Basic Research, РЀЀИ, (20-37-90037)The reported study is funded by RFBR according to research project No. 20-37-90037

    Methods of Signal Analysis for Automatic Diagnosis of Shockable Cardiac Arrhythmias: A Review

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    ΠŸΠΎΡΡ‚ΡƒΠΏΠΈΠ»Π°: 19.12.2021. ΠŸΡ€ΠΈΠ½ΡΡ‚Π° Π² ΠΏΠ΅Ρ‡Π°Ρ‚ΡŒ: 18.01.2022.Received: 19.12.2021. Accepted: 18.01.2022.Ѐибрилляция ΠΆΠ΅Π»ΡƒΠ΄ΠΎΡ‡ΠΊΠΎΠ² сСрдца считаСтся Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто Π²ΡΡ‚Ρ€Π΅Ρ‡Π°ΡŽΡ‰Π΅ΠΉΡΡ ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ Π²Π½Π΅Π·Π°ΠΏΠ½ΠΎΠΉ остановки сСрдца. Вакая фибрилляция ΠΈ часто ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²ΡƒΡŽΡ‰Π°Ρ Π΅ΠΉ ТСлудочковая тахикардия – это Ρ€ΠΈΡ‚ΠΌΡ‹ сСрдца, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΌΠΎΠ³ΡƒΡ‚ Ρ€Π΅Π°Π³ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π½Π° ΡΠΊΡΡ‚Ρ€Π΅Π½Π½ΡƒΡŽ ΡΠ»Π΅ΠΊΡ‚Ρ€ΠΎΡˆΠΎΠΊΠΎΠ²ΡƒΡŽ Ρ‚Π΅Ρ€Π°ΠΏΠΈΡŽ ΠΈ Π²Π΅Ρ€Π½ΡƒΡ‚ΡŒΡΡ ΠΊ Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΠΌΡƒ синусовому Ρ€ΠΈΡ‚ΠΌΡƒ ΠΏΡ€ΠΈ Ρ€Π°Π½Π½Π΅ΠΉ диагностикС послС остановки сСрдца с восстановлСниСм Π°Π΄Π΅ΠΊΠ²Π°Ρ‚Π½ΠΎΠΉ насосной Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ сСрдца. Однако ручная ΠΏΡ€ΠΎΠ²Π΅Ρ€ΠΊΠ° сигналов Π­ΠšΠ“ Π½Π° Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ ΠΏΠ°Ρ‚Ρ‚Π΅Ρ€Π½Π° Ρ‚Π°ΠΊΠΎΠΉ Π°Ρ€ΠΈΡ‚ΠΌΠΈΠΈ являСтся слоТной аналитичСской Π·Π°Π΄Π°Ρ‡Π΅ΠΉ, Ρ‚Ρ€Π΅Π±ΡƒΡŽΡ‰Π΅ΠΉ Π½Π΅ΠΌΠ΅Π΄Π»Π΅Π½Π½ΠΎΠ³ΠΎ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π² стрСссовой ситуации, практичСски Π½Π΅Π²Ρ‹ΠΏΠΎΠ»Π½ΠΈΠΌΠΎΠΉ Π² отсутствиС ΠΊΠ²Π°Π»ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ мСдицинского спСциалиста. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ для автоматичСской диагностики острых состояний ΡˆΠΈΡ€ΠΎΠΊΠΎΠ΅ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ»ΠΈ систСмы ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ классификации Π°Ρ€ΠΈΡ‚ΠΌΠΈΠΉ с Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠ΅ΠΉ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΎ нСобходимости провСдСния элСктрокардиотСрапии с ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π°ΠΌΠΈ Π²Ρ‹ΡΠΎΠΊΠΎΠ²ΠΎΠ»ΡŒΡ‚Π½ΠΎΠ³ΠΎ ΠΈΠΌΠΏΡƒΠ»ΡŒΡΠ°, вычислСнного Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎ для ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°. Π’ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Π΅ рассмотрСны ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Π°Π½Π°Π»ΠΈΠ·Π° элСктрокардиографичСского сигнала, снимаСмого с элСктродов Π½Π°Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ автоматичСского ΠΈΠ»ΠΈ полуавтоматичСского дСфибриллятора, с Ρ†Π΅Π»ΡŒΡŽ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΎ нСобходимости оказания дСфибрилляции, ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΡ‹Π΅ Π²ΠΎ встроСнном ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½ΠΎΠΌ обСспСчСнии автоматичСских ΠΈ полуавтоматичСских Π²Π½Π΅ΡˆΠ½ΠΈΡ… дСфибрилляторов. Π Π°Π±ΠΎΡ‚Π° Π²ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ ΠΎΠ±Π·ΠΎΡ€ ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΡ‹Ρ… ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Ρ„ΠΈΠ»ΡŒΡ‚Ρ€Π°Ρ†ΠΈΠΈ, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΡ… Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² извлСчСния, классификации ΠΈ сТатия Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½Ρ‹Ρ… ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΎΠ² для сигнала Π­ΠšΠ“.Ventricular fibrillation is considered the most common cause of sudden cardiac arrest. The fibrillation, and ventricular tachycardia often preceding it, are cardiac rhythms that may respond to emergency electroshock therapy and return to normal sinus rhythm when diagnosed early after cardiac arrest with the restoration of adequate cardiac pumping function. However, manually checking ECG signals on the existence of a pattern of such arrhythmias is a risky and time-consuming task in stressful situations and practically impossible in the absence of a qualified medical specialist. Therefore, systems of the computer classification of arrhythmias with the function of making a decision on the necessity of electric cardioversion with the parameters of a high-voltage pulse calculated adaptively for each patient are widely used for the automatic diagnosis of such conditions. This paper discusses methods of analyzing the electrocardiographic signal taken from the electrodes of an external automatic or semi-automatic defibrillator in order to make a decision on the necessity for defibrillation, which are applicable in the embedded software of automatic and semiautomatic external defibrillators. The paper includes an overview of applicable filtering techniques as well as subsequent algorithms for extracting, classifying and compressing features for the ECG signal

    Seinale prozesaketan eta ikasketa automatikoan oinarritutako ekarpenak bihotz-erritmoen analisirako bihotz-biriketako berpiztean

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    Tesis inglΓ©s 218 p. -- Tesis euskera 220 p.Out-of-hospital cardiac arrest (OHCA ) is characterized by the sudden loss of the cardiac function, andcauses around 10% of the total mortality in developed countries. Survival from OHCA depends largelyon two factors: early defibrillation and early cardiopulmonary resuscitation (CPR). The electrical shock isdelivered using a shock advice algorithm (SAA) implemented in defibrillators. Unfortunately, CPR mustbe stopped for a reliable SAA analysis because chest compressions introduce artefacts in the ECG. Theseinterruptions in CPR have an adverse effect on OHCA survival. Since the early 1990s, many efforts havebeen made to reliably analyze the rhythm during CPR. Strategies have mainly focused on adaptive filtersto suppress the CPR artefact followed by SAAs of commercial defibrillators. However, these solutionsdid not meet the American Heart AssociationΒΏs (AHA) accuracy requirements for shock/no-shockdecisions. A recent approach, which replaces the commercial SAA by machine learning classifiers, hasdemonstrated that a reliable rhythm analysis during CPR is possible. However, defibrillation is not theonly treatment needed during OHCA, and depending on the clinical context a finer rhythm classificationis needed. Indeed, an optimal OHCA scenario would allow the classification of the five cardiac arrestrhythm types that may be present during resuscitation. Unfortunately, multiclass classifiers that allow areliable rhythm analysis during CPR have not yet been demonstrated. On all of these studies artefactsoriginate from manual compressions delivered by rescuers. Mechanical compression devices, such as theLUCAS or the AutoPulse, are increasingly used in resuscitation. Thus, a reliable rhythm analysis duringmechanical CPR is becoming critical. Unfortunately, no AHA compliant algorithms have yet beendemonstrated during mechanical CPR. The focus of this thesis work is to provide new or improvedsolutions for rhythm analysis during CPR, including shock/no-shock decision during manual andmechanical CPR and multiclass classification during manual CPR
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