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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">10.32603/1993-8985-2021-24-2-68-77</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-505</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>Разработка алгоритма кластеризации кардиокомплексов с посткоррекцией  для задач длительного мониторирования электрокардиосигнала</article-title><trans-title-group xml:lang="en"><trans-title>Development of an Algorithm for Clustering Cardiac ECG Signals with Post-Correction for Long-Term ECG Monitoring</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кондратьева</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondratyeva</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кондратьева Ирина Анатольевна  –  магистр по направлению "Инфокоммуникационные технологии и системы связи" (2020), аспирант кафедры  радиотехнических  систем.  Автор 4 научных работ.  Сфера научных интересов – цифровая обработка биомедицинских сигналов.</p><p>ул. Профессора Попова, д. 5, Санкт-Петербург, 197376</p></bio><bio xml:lang="en"><p>Irina A. Kondratyeva,  Master (2020) in  Infocommunication Technology and Communication Systems, postgraduate student of the Department.  The author of 4 scientific publications. Area of expertise: digital processing of biomedical signals.</p><p>5 Professor Popov St., St Petersburg 197376</p></bio><email xlink:type="simple">irikondr1721@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Красичков</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasichkov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Красичков Александр Сергеевич – доктор технических наук (2017), профессор (2020) кафедры радио-технических  систем. Автор более 100 научных работ. Сфера научных интересов  – статистическая радиотехника; методы обработки сигналов.</p><p> ул. Профессора Попова, д. 5, Санкт-Петербург, 197376</p></bio><bio xml:lang="en"><p>Alexander S. Krasichkov, Dr. Sci. (Eng.) (2017), Professor (2020) of the Department. The author of more than 100 scientific publications. Area of expertise: st atistical radio engineering; signal processing.</p><p> 5 Professor Popov St., St Petersburg 197376</p></bio><email xlink:type="simple">krass33@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Станчева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stancheva</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Станчева  Ольга  Андреевна  –  врач-оториноларинголог, младший научный сотрудник.  Автор  более  20  научных  работ. Сфера интересов – клиническая медицина; оториноларингология; хирургия слезоотводящих путей.</p><p>ул. Льва Толстого, д. 6-8, Санкт-Петербург, 197022</p></bio><bio xml:lang="en"><p>Olga A. Stancheva, MD, ENT-doctor at ENT department, Junior Researcher of Saint Petersburg Research Institute of Ear, Throat, Nose and Speech (the Ministry of Health).  The author of more than 20 scientific publications. Area of expertise: clinical medicine; otorhinolaringology, dacriology.</p><p>, 6-8 L'va Tolstogo St., St Petersburg 197022</p></bio><email xlink:type="simple">olga.stancheva@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мбазумутима</surname><given-names>Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Mbazumutima</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мбазумутима Элиаким  – магистр по направлению "Биотехнические системы и технологии" (2019), аспирант кафедры биотехнических систем. Автор одной научной публикации. Сфера научных интересов – цифровая обработка биомедицинских сигналов, машинное обучение, распознавание образов.</p><p>ул. Профессора Попова, д. 5, Санкт-Петербург, 197376</p></bio><bio xml:lang="en"><p>Eliachim Mbazumutima, Master (2019) in Biotechnical Systems and Technologies, postgraduate student. The author of 1 scientific publication. Area of expertise: digital processing of biomedical signals; machine learning; pattern recognition.</p><p> 5 Professor Popov St., St Petersburg 197376</p></bio><email xlink:type="simple">eliachim2013@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шикама</surname><given-names>Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Shikema</surname><given-names>F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шикама Фабиен  –  магистр по направлению "Биотехнические системы и технологии" (2016), аспирант кафедры биотехнических систем.  Сфера  научных  интересов  –  цифровая  обработка  биомедицинских сигналов, протезирование и реабилитация.</p><p>ул. Профессора Попова, д. 5, Санкт-Петербург, 197376</p></bio><bio xml:lang="en"><p>Fabian Shikama,  Master (2016) in Biotechnical Systems  and Technologies, postgraduate student. Area of expertise: digital processing of biomedical signals; prosthetics and rehabilitation.</p><p> 5 Professor Popov St., St Petersburg 197376</p></bio><email xlink:type="simple">fshikama@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нифонтов</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>M.</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нифонтов Евгений Михайлович  –  доктор медицинских наук (2003), профессор (2009).  Автор  более  150 научных работ. Сфера научных интересов – фундаментальная медицина; кардиология.</p><p>ул. Льва Толстого, д. 6-8, Санкт-Петербург, 197022</p></bio><bio xml:lang="en"><p>Evgeny M. Nifontov, Dr. Sci. (Medicine) (2003), Professor (2009). The author of more than 150 scientific publications. Area of expertise: fundamental medicine; cardiology.</p><p>6-8 L'va Tolstogo St., St Petersburg 197022</p></bio><email xlink:type="simple">nifontov@spmu.rssi.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический&#13;
университет "ЛЭТИ" им. В. И. Ульянова (Ленина)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический&#13;
университет "ЛЭТИ" им. В. И. Ульянова (Ленина); Первый Санкт-Петербургский государственный медицинский университет им. акад. И. П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University; Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. акад. И. П. Павлова; Санкт-Петербургский научно-исследовательский институт уха, горла, носа и речи&#13;
Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov First Saint Petersburg State Medical University; Saint Petersburg Research Institute of Ear, Throat, Nose and Speech</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. акад. И. П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>29</day><month>04</month><year>2021</year></pub-date><volume>24</volume><issue>2</issue><fpage>68</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кондратьева И.А., Красичков А.С., Станчева О.А., Мбазумутима Э., Шикама Ф., Нифонтов Е.М., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Кондратьева И.А., Красичков А.С., Станчева О.А., Мбазумутима Э., Шикама Ф., Нифонтов Е.М.</copyright-holder><copyright-holder xml:lang="en">Kondratyeva I.A., Krasichkov A.S., Stancheva O.A., Mbazumutima E., Shikema F., M. E.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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/505">https://re.eltech.ru/jour/article/view/505</self-uri><abstract><sec><title>Введение</title><p>Введение.  Наиболее распространенным методом диагностики сердечно- сосудистых заболеваний является длительное  мониторирование  электрокардиосигнала  (ЭКС) .  Для  облегчения  анализа  полученных  мониторограмм врачам- кардиологам необходимы специальные алгоритмы и программные средства автоматизированной обработки  ЭКС. Одним из  таких средств  является алгоритм автоматизированной обработки  ЭКС, выполня ющий  кластеризацию кардиокомплексов  (КК) , разделяя  ЭКС  на группы максимально близких по форме  КК. Дальнейшему анализу подвергаются только эталонные КК, полученные статистическим  усреднением  КК  в каждой группе.</p></sec><sec><title>Цель  работы</title><p>Цель  работы.  Разработка  алгоритма  автоматизированной  кластеризации  КК  ЭКС,  разделяющего  электрокардиосигнал на группы максимально близких по форме КК.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы.  Экспериментальная апробация  алгоритма и  программного  модуля  проводилась на  базе обезличенных суточных записей ЭКС пациентов Первого Санкт- Петербургского государственного медицинского университета им.   акад.   И. П. Павлова Минздрава России.  Программный модуль был реализован в среде MatLab.</p></sec><sec><title>Результаты</title><p>Результаты.  Разработан  алгоритм  сортировки  КК  с  посткоррекцией  для  длительного  мониторирования  ЭКС; представлен программный модуль, реализованный на базе  разработанного алгоритма. Рассмотрено  влияние ошибок синхронизации  КК  при их накоплении  на форму усредняемого КК. Классическое решение задачи деконволюции приводит к значительным ошибкам при нахождении оценки "истинной" формы КК. На основании аналитических расчетов получены выражения для коррекции накапливаемого КК.  Показано, что в результате коррекции можно  нивелировать ошибки накопления, связанные с рассинхронизацией.</p></sec><sec><title>Заключение</title><p>Заключение.  Наличие  небольшого  количества  эталонных  КК,  полученных  в  результате  обработки  ЭКС с помощью  предложенного  алгоритма,  позволяет  врачу-исследователю  значительно  сократить  время, затрачиваемое  на  анализ  ЭКС,  и  является  основой  исследования  динамических  изменений  формы  и иных параметров КК  как для конкретного пациента, так и для их группы. Полученные результаты  позволяют создать основу для решения задач, направленных на исследование "тонкой" структуры ЭКС.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The most common method for diagnosing cardiovascular diseases is the method of ECG monitoring. In order to facilitate the analysis of the obtained monitorograms, special software solutions for automated ECG processing are required. One possible approach is the use of algorithms for automated ECG processing. Such algorithms perform  clustering of cardiac signals by dividing the ECG into complexes of similar cardiac signals. The most representative complexes obtained by statistical averaging are subject to further analysis.</p></sec><sec><title>Aim</title><p>Aim. Development of an algorithm for automated ECG processing,  which performs clustering of cardiac signals by dividing the ECG into complexes of similar cardiac signals.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Experimental testing of the developed software was carried out using patient records provided by the Pavlov First State Medical University of St  Petersburg. The software module was implemented in the MatLab environment.</p></sec><sec><title>Results</title><p>Results. An algorithm for clustering cardiac signals with post-correction for the tasks of long-term ECG monitoring and a software module on its basis were proposed.</p></sec><sec><title>Conclusion</title><p>Conclusion.  The presence of a small number of reference cardiac signal complexes, obtained through ECG processing using the proposed algorithm, allows physicians to optimize the process of ECG analysis. The as- obtained information serves as a basis for assessing dynamic changes in the shape and other parameters of cardiac signals for both a particular patient and groups of patients. The paper considers the effect of synchronization errors of clustered cardiac signals on the shape of the averaged cardiac complex. The classical solution to the deconvolution problem leads to significant errors in finding an estimate of the true form of a cardiac signal complex. On the basis of analytical calculations, expressions were obtained for the correction of clustered cardiac signals. Such correction was shown to reduce clusterization errors associated with desynchronization, which creates a basis for investigating the fine structure of ECG signals.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>электрокардиосигнал</kwd><kwd>частота  сердечных  сокращений  (ЧСС)</kwd><kwd>сортировка  кардиоком-плексов</kwd><kwd>ошибка синхронизации</kwd><kwd>синхронное накопление</kwd><kwd>коррекция формы сигнала</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electrocardiogram</kwd><kwd>heart rate (HR)</kwd><kwd>ECG clustering algorithm</kwd><kwd>sync error</kwd><kwd>synchronous accumulation</kwd><kwd>signal shape correction</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Красичков А. С., Нифонтов Е. М., Иванов В. С.Алгоритм сортировки кардиокомплексов для анализа длительных записей электрокардиосигнала // Биомедицинская радиоэлектроника. 2011. № 11. 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