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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2024-39-1-171-177</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-2197</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Численная модель образования аневризмы сосудистого протеза</article-title><trans-title-group xml:lang="en"><trans-title>Numerical model of aneurysm formation in vascular grafts</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3211-1250</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клышников</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Klyshnikov</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клышников Кирилл Юрьевич, канд. мед. наук, научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Kirill Yu. Klyshnikov, Cand. Sci. (Med.), Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">klyshku@kemcardio.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/0000-0001-7477-3979</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Овчаренко</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ovcharenko</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Овчаренко Евгений Андреевич, канд. техн. наук, заведующий лабораторией</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Evgeny A. Ovcharenko, Cand. Sci. (Tech.), Head of the Laboratory</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">ovchea@kemcardio.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/0000-0003-4890-0393</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глушкова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Glushkova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глушкова Татьяна Владимировна, канд. биол. наук, старший научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Tatyana V. Glushkova, Cand. Sci. (Biol.), Senior Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">glushtv@kemcardio.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/0000-0003-2404-2873</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Онищенко</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Onishchenko</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Онищенко Павел Сергеевич, младший научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Pavel S. Onishchenko, Junior Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">onisps@kemcardio.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/0000-0002-4405-8904</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Резвова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Rezvova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Резвова Мария Александровна, младший научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Maria A. Rezvova, Junior Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">rezma@kemcardio.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/0000-0001-6099-0315</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Костюнин</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostyunin</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Костюнин Александр Евгеньевич, канд. биол. наук, научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Alexander E. Kostyunin, Cand. Sci. (Biol.), Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">kostae@kemcardio.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/0000-0002-0033-9376</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акентьева</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Akentieva</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акентьева Татьяна Николаевна, младший научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Tatyana N. Akentieva, Junior Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">akentn@kemcardio.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/0000-0002-7116-8754</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Согоян</surname><given-names>Н. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Sogoyan</surname><given-names>N. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Согоян Нерсес Корюнович, сердечно-сосудистый хирург</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Nerses K. Sogoyan, Cardiovascular   Surgeon</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">nerssogoyan@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6981-9661</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Барбараш</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Barbarash</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Барбараш Леонид Семенович, д-р мед. наук, профессор, академик РАН, главный научный сотрудник</p><p>650002, Кемерово, бульвар имени академика Л.С. Барбараша, стр. 6</p></bio><bio xml:lang="en"><p>Leonid S. Barbarash, Dr. Sci. (Med.), Professor, Academician of the RAS, Chief Research Scientist</p><p>Academician Barbarash boulevard, 6, Kemerovo, 650002</p></bio><email xlink:type="simple">director@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) комплексных проблем сердечно-сосудистых заболеваний</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute for Complex Problems of Cardiovascular Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>05</day><month>04</month><year>2024</year></pub-date><volume>39</volume><issue>1</issue><fpage>171</fpage><lpage>177</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Клышников К.Ю., Овчаренко Е.А., Глушкова Т.В., Онищенко П.С., Резвова М.А., Костюнин А.Е., Акентьева Т.Н., Согоян Н.К., Барбараш Л.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Клышников К.Ю., Овчаренко Е.А., Глушкова Т.В., Онищенко П.С., Резвова М.А., Костюнин А.Е., Акентьева Т.Н., Согоян Н.К., Барбараш Л.С.</copyright-holder><copyright-holder xml:lang="en">Klyshnikov K.Y., Ovcharenko E.A., Glushkova T.V., Onishchenko P.S., Rezvova M.A., Kostyunin A.E., Akentieva T.N., Sogoyan N.K., Barbarash L.S.</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://www.sibjcem.ru/jour/article/view/2197">https://www.sibjcem.ru/jour/article/view/2197</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Исследование с помощью численного моделирования биомеханики имплантируемых медицинских изделий для сердечно-сосудистой хирургии является ценным инструментом для понимания глубинных механизмов клинических осложнений, возникающих при их применении.</p></sec><sec><title>Цель</title><p>Цель: описание и результаты применения численного метода моделирования аневризматического выбухания стенки сосудистого протеза на основе имитации деградации ее механических свойств.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Моделирование осуществляли на примере трехмерной компьютерной модели, полученной путем высокоточного  томографического  сканирования  участка сосудистого  биопротеза  «КемАнгиоПротез»  (ЗАО «НеоКор», Россия). На основе полученной 3D-модели путем подключения специализированного скрипта в среде Abaqus/CAE (Dassault systemes, США) имитировали падение модуля упругости (от 100 до 10%) при возникновении запороговых напряжений в материале с накоплением пластической деформации.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе приложения 150 условных циклов давления показано, что модель реализует заложенный функционал и вызывает выбухание сосудистой стенки до 0,7 мм в радиальном направлении при значительной деградации механических свойств (на 90% относительно исходного модуля упругости) в результате длительного воздействия давлением. Пластическая деформация составила максимально 0,55%.</p></sec><sec><title>Заключение</title><p>Заключение. Исследованный в настоящей работе метод моделирования деградации свойств сосудистой стенки продемонстрировал возможность качественной и количественной оценки областей патологического аневризмообразования численными инструментами. Метод позволяет визуализировать участки выбухания и способен стать ценным инструментом для дополнения существующих подходов к исследованию сосудистых протезов, особенно биологического происхождения.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Using numerical modeling to study biomechanics of implantable devices for cardiovascular healthcare can help specialists understand underlying mechanisms of clinical complications caused by these devices.</p></sec><sec><title>Aim</title><p>Aim: To describe the results of numerical modeling of aneurysm formation in vascular grafts based on the simulation of degradation of their mechanical properties.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. The simulation was carried out using a three-dimensional computer model obtained by high-resolution computed tomography of the vascular graft “KemAngioProtez” (CJSC “NeoKor”, Russia). Using the 3D model obtained with a specialized script in the Abaqus/CAE environment (Dassault systems, USA), we have simulated the decrease in the elastic modulus (from 100 to 10%) with post-threshold stresses in the material and the accumulation of plastic strain.</p></sec><sec><title>Results</title><p>Results. Undergoing 150 loading cycles, the vascular wall in the model swelled up to 0.7 mm in the radial direction, and its mechanical properties degraded significantly (by 90% compared to baseline) due to prolonged pressure exposure. The value of maximum plastic deformation was 0.55%.</p></sec><sec><title>Conclusion</title><p>Conclusion. Numerical modeling of graft mechanical properties degradation can assist in qualitative and quantitative assessment of the areas of aneurysm formation. The method makes it possible to visualize the swelling areas and can be used as a valuable tool to complement the existing approaches to studying vascular grafts, and biografts in particular.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сосудистый протез</kwd><kwd>численное моделирование</kwd><kwd>метод конечных элементов</kwd><kwd>аневризматическое выбухание</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vascular grafts</kwd><kwd>numerical modeling</kwd><kwd>finite element method</kwd><kwd>aneurysmal swelling</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">Lin C.-H., Hsia K., Ma H., Lee H., Lu J.-H. In vivo performance of decellularized vascular grafts: a review article. Int. J. Mol. Sci. 2018;19(7):2101. DOI: 10.3390/ijms19072101.</mixed-citation><mixed-citation xml:lang="en">Lin C.-H., Hsia K., Ma H., Lee H., Lu J.-H. 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