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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2021-24-4-79-89</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-545</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ПРИБОРЫ МЕДИЦИНСКОГО НАЗНАЧЕНИЯ, КОНТРОЛЯ СРЕДЫ, ВЕЩЕСТВ, МАТЕРИАЛОВ И ИЗДЕЛИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICAL DEVICES, ENVIRONMENT, SUBSTANCES, MATERIAL AND PRODUCT</subject></subj-group></article-categories><title-group><article-title>Исследование погрешности оценки характеристик поздних потенциалов желудочков по 12-канальной электрокардиограмме</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of Inaccuracies in the Assessment of Ventricular Late Potentials Using 12-lead ECG Recordings</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9868-8960</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ханади</surname><given-names>Солиман</given-names></name><name name-style="western" xml:lang="en"><surname>Hanadi</surname><given-names>Solieman</given-names></name></name-alternatives><bio xml:lang="ru"><p>Солиман Ханади – аспирантка 2-го курса, ассистент кафедры биотехнических систем Санкт-Петербургского государственного электротехнического университета "ЛЭТИ" им. В. И. Ульянова (Ленина), ассистент </p><p>Южный въезд, Латакия</p></bio><bio xml:lang="en"><p>Hanadi Solieman, post-graduate student of the 2-year, assistant of the Department of Bioengineering Systems, St Petersburg Electrotechnical University, an assistant at the Mechatronics program for Distinguished. </p><p>Southern Entrance, Latakia </p></bio><email xlink:type="simple">khsoliman@stud.etu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9408-2622</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нгуен</surname><given-names>Чонг Туен</given-names></name><name name-style="western" xml:lang="en"><surname>Nguyen</surname><given-names>Trong Tuyen</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нгуен Чонг Туен – кандидат технических наук (2018) по специальности "Приборы, системы и изделия медицинского назначения", преподаватель кафедры биомедицинской инженерии. </p><p>236 Хоанг Куок Вьет, Ханой</p></bio><bio xml:lang="en"><p>Nguyen Trong Tuyen, Cand. Sci. (Eng.) (2018) in the field of Devices, systems, and medical products, a lecturer at the Department of Biomedical Engineering. Nguyet Chong Tuen graduated with honors from the Bachelor's program (2012), Master's program (2014) in the field of Bioengineering Systems and Technologies. </p><p>236 Hoang Quoc Viet, Hanoi </p></bio><email xlink:type="simple">nguyentuyen1988@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Университет Тишрин<country>Сирия</country></aff><aff xml:lang="en">Tishreen University<country>Syrian Arab Republic</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Технический университет имени Ле Куй Дона<country>Вьетнам</country></aff><aff xml:lang="en">Le Quy Don Technical University<country>Viet Nam</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>09</month><year>2021</year></pub-date><volume>24</volume><issue>4</issue><fpage>79</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ханади С., Нгуен Ч.Т., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Ханади С., Нгуен Ч.Т.</copyright-holder><copyright-holder xml:lang="en">Hanadi S., Nguyen T.T.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://re.eltech.ru/jour/article/view/545">https://re.eltech.ru/jour/article/view/545</self-uri><abstract><p>Введение. Поздние потенциалы желудочков являются предиктором ряда серьезных нарушений сердца, таких как синдром внезапной смерти, инфаркт миокарда, желудочковые тахиаритмии. Оценка характеристик поздних потенциалов желудочков позволяет судить о степени таких нарушений и возможных для жизни человека опасных последствиях.Цель работы. Исследование погрешности оценки характеристик поздних потенциалов желудочков по 12-канальной электрокардиограмме (ЭКГ) высокого разрешения.Методы и материалы. Поздние потенциалы желудочков выявляются путем определения модуля электрического вектора сердца по сигналам ортогональных отведений. Для оценки погрешности преобразования использовались синхронные записи ЭКГ-сигналов 12-канальных и ортогональных отведений, методы цифровой фильтрации для снижения уровня шумов и помех, методы выделения характерных точек QRS-комплекса и поздних потенциалов желудочков.Результаты. Преобразование ЭКГ-сигналов 12-канальных отведений в сигналы ортогональных отведений приводит к появлению погрешностей оценки модуля электрического вектора сердца и всех показателей VLP-сигнала. Показана целесообразность использования преобразования Корса. Оно обеспечивает минимальные погрешности оценки модуля электрического вектора сердца на участке QRS-комплекса, погрешности оценки VRMS не более 0.084 %. Для оценки погрешности QRSd и LAS необходимо учитывать характер изменения VLP-сигнала и зоны неопределенности их оценки. Неоднозначность результатов оценки границ нарушений и отсутствия патологии деполяризации желудочков сердца говорит о влиянии большого количества факторов на точность результатов исследований. Погрешности их оценки могут быть причиной гипо- и гипердиагностики опасных нарушений ритма сердца, прогнозирования рисков ухудшения состояния здоровья пациента.Заключение. Результаты исследования позволяют выделить пути снижения погрешности оценки показателей поздних потенциалов желудочков, повысить точность диагностики опасных нарушений ритма сердца и прогноза обострения заболевания из-за структурно-морфологических нарушений миокарда.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Ventricular late potentials (VLP) are predictors of cardiac disorders such as sudden death syndrome, myocardial infarction and ventricular tachyarrhythmias. Therefore, VLP assessment allows the severity and possible dangerous consequences of such disorders to be predicted.Aim. To determine errors associated with VLP assessment by high-resolution 12-lead ECG recordings.Materials and methods. VLPs were determined by the modulus of the cardiac electrical vector using signals from orthogonal leads. The conversion error was assessed using synchronous ECG recordings of 12-channel and orthogonal leads, the method of digital filtering (to reduce noise and interference) and the method of identifying characteristic points of the QRS complex and VLPs.Results. The conversion of 12-lead ECG signals into orthogonal signals results in errors associated with the assessment of both the modulus of the cardiac electrical vector and all VLP indicators. The Kors transformation was shown to provide the minimum errors when assessing the cardiac electrical vector modulus in the QRS area, with the errors related to the VRMS assessment not exceeding 0.084 %. The estimation of the QRSd and LAS errors should consider the nature of VLP variations and the zone of uncertainty in their assessment. The ambiguity of the results of assessing the boundaries of violations and the absence of pathologies in cardiac ventricular depolarization indicates the influence of a large number of factors on research accuracy. Errors in the assessment of these factors may result in under- and overestimation of dangerous heart rhythm disturbances and incorrect prediction of the patient' state.Conclusion. The obtained results can be used for reducing errors associated with the assessment of VLP indicators, improving the diagnostic accuracy of dangerous heart rhythm disturbances and predicting disease exacerbation due to structural and morphological disorders of the myocardium.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поздние потенциалы желудочков</kwd><kwd>преобразование ЭКГ-сигналов</kwd><kwd>погрешности</kwd><kwd>модуль электрического вектора сердца</kwd><kwd>оценка характеристик</kwd><kwd>гипо- и гипердиагностика</kwd><kwd>нарушения ритма сердца</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ventricular late potentials</kwd><kwd>conversion of ECG signals</kwd><kwd>errors</kwd><kwd>cardiac electrical vector modulus</kwd><kwd>evaluation of characteristics</kwd><kwd>under- and overestimation</kwd><kwd>cardiac arrhythmias</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена при поддержке Российского фонда фундаментальных исследований (РФФИ), исследовательские проекты 18-29-02036 и 19-29-01009.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>This work was supported by the Russian Foundation for Basic Research (RFBR), research projects No. 18-29-02036 and 19-29-01009.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Non-invasive detection of late potentials in man: A new marker for ventricular tachycardia / G. 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