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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">russjcardiol</journal-id><journal-title-group><journal-title xml:lang="ru">Российский кардиологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Cardiology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1560-4071</issn><issn pub-type="epub">2618-7620</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15829/1560-4071-2026-6633</article-id><article-id custom-type="edn" pub-id-type="custom">UDICST</article-id><article-id custom-type="elpub" pub-id-type="custom">russjcardiol-6633</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>НОВОЕ В ДИАГНОСТИКЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NOVEL APPROACHES IN DIAGNOSTICS</subject></subj-group></article-categories><title-group><article-title>Неинвазивное трехмерное моделирование гемодинамики коронарных артерий на основе данных мультиспиральной компьютерно-томографической ангиографии для определения значимости стенозов: пилотное исследование</article-title><trans-title-group xml:lang="en"><trans-title>Noninvasive 3D modeling of coronary artery hemodynamics based on multislice computed tomography angiography data to determine the stenosis significance: a pilot study</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1513-8614</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Завадовский</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavadovsky</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Валерьевич Завадовский — д.м.н., зав. отделом лучевой диагностики.</p><p>Киевская ул., д. 111а, Томск, 634009</p></bio><bio xml:lang="en"><p>Kievskaya str, 111a, Tomsk, 634012</p></bio><email xlink:type="simple">konstzav@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/0000-0002-6054-5665</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суюндукова</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Suyundukova</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алмагуль Туктаровна Суюндукова — к.ф.м.н., м.н.с. лаборатории регистров сердечно-сосудистых заболеваний, высокотехнологичных вмешательств и телемедицины.</p><p>Киевская ул., д. 111а, Томск, 634009</p></bio><bio xml:lang="en"><p>Kievskaya str, 111a, Tomsk, 634012</p></bio><email xlink:type="simple">almagul.suyundukova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0431-1554</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельничук</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnichuk</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Васильевич Мельничук — к.ф.м.н., доцент кафедры общей и экспериментальной физики.</p><p>Пр. Ленина, д. 36, Томск, 634050</p></bio><bio xml:lang="en"><p>Lenin Ave., 36, Tomsk, 634050</p></bio><email xlink:type="simple">osbereg@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1311-0378</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мальцева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Maltseva</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алина Николаевна Мальцева — к.м.н., н.с. отделения рентгеновских и томографических методов диагностики.</p><p>Киевская ул., д. 111а, Томск, 634009</p></bio><bio xml:lang="en"><p>Kievskaya str, 111a, Tomsk, 634012</p></bio><email xlink:type="simple">maltseva.alina.93@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/0009-0004-7003-6559</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дашеева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Dasheeva</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аяна Семеновна Дашеева — аспирант отделения рентгеновских и томографических методов диагностики.</p><p>Киевская ул., д. 111а, Томск, 634009</p></bio><bio xml:lang="en"><p>Kievskaya str, 111a, Tomsk, 634012</p></bio><email xlink:type="simple">dasheevayana@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/0000-0003-0883-466X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мочула</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mochula</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Викторович Мочула — к.м.н., с.н.с. лаборатории радионуклидных методов исследования.</p><p>Киевская ул., д. 111а, Томск, 634009</p></bio><bio xml:lang="en"><p>Kievskaya str, 111a, Tomsk, 634012</p></bio><email xlink:type="simple">mochula.andrew@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/0009-0008-7066-6904</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Проскуряков</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Proskuryakov</surname><given-names>D. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Даниил Олегович Проскуряков — аспирант кафедры радиоэлектроники.</p><p>Пр. Ленина, д. 36, Томск, 634050</p></bio><bio xml:lang="en"><p>Lenin Ave., 36, Tomsk, 634050</p></bio><email xlink:type="simple">danya.proskuryakov.01@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2183-5811</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демкин</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Demkin</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Петрович Демкин — д.ф.м.н., профессор кафедры общей и экспериментальной физики.</p><p>Пр. Ленина, д. 36, Томск, 634050</p></bio><bio xml:lang="en"><p>Lenin Ave., 36, Tomsk, 634050</p></bio><email xlink:type="simple">demkin@ido.tsu.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии, ФГБНУ Томский национальный исследовательский медицинский центр РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО Национальный исследовательский Томский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии, ФГБНУ Томский национальный исследовательский медицинский центр РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГАОУ ВО Национальный исследовательский Томский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>04</day><month>06</month><year>2026</year></pub-date><volume>31</volume><issue>4</issue><fpage>6633</fpage><lpage>6633</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Завадовский К.В., Суюндукова А.Т., Мельничук С.В., Мальцева А.Н., Дашеева А.С., Мочула А.В., Проскуряков Д.О., Демкин В.П., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Завадовский К.В., Суюндукова А.Т., Мельничук С.В., Мальцева А.Н., Дашеева А.С., Мочула А.В., Проскуряков Д.О., Демкин В.П.</copyright-holder><copyright-holder xml:lang="en">Zavadovsky K.V., Suyundukova A.T., Melnichuk S.V., Maltseva A.N., Dasheeva A.S., Mochula A.V., Proskuryakov D.O., Demkin V.P.</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://russjcardiol.elpub.ru/jour/article/view/6633">https://russjcardiol.elpub.ru/jour/article/view/6633</self-uri><abstract><sec><title>Цель</title><p>Цель. Оценить информативность трехмерной физико-математической модели локальной гемодинамики, основанной на данных мультиспиральной компьютерно-томографической коронарной ангиографии (МСКТ-КАГ), для неинвазивного определения функциональной значимости стенозов коронарных артерий (КА).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включены 15 пациентов (средний возраст 57,6±8,9 лет) со стабильной ишемической болезнью сердца. Всем выполнена МСКТ-КАГ, и 9 пациентам перфузионная сцинтиграфия миокарда (ПСМ). На основе МСКТ изображений строились 3D-модели КА, в которых численно рассчитывался фракционный резерв кровотока (CT-FFR) в покое и при смоделированной гиперемии (МГ) с использованием COMSOL Multiphysics®. Результаты моделирования сопоставлялись со степенью стеноза и признаками ишемии по данным ПСМ.</p></sec><sec><title>Результаты</title><p>Результаты. Проанализировано 76 сосудистых сегментов коронарного русла. Значения CT-FFR МГ были статистически значимо ниже (p&lt;0,001) в сегментах со стенозами ≥50% (0,53 [0,37-0,65]) и ≥70% (0,47 [0,34-0,55]) по сравнению с необструктивными поражениями &lt;50% (0,88 [0,83-0,96]) и &lt;70% (0,87 [0,81-0,95]). Выявлена отрицательная корреляция между степенью стеноза и CT-FFR МГ (ρ=-0,485, p&lt;0,05). ROC-анализ показал высокую диагностическую точность CT-FFR МГ для стенозов ≥50% (AUC=0,9; чувствительность 93,7%; специфичность 86,7%) и ≥70% (AUC=0,9; чувствительность 100%; специфичность 83,6%). В сосудистых регионах с наличием дефектов перфузии по данным ПМС значения CT-FFR МГ были значимо ниже (0,49±0,21 vs 0,82±0,18, p&lt;0,001). Логистический анализ показал, что снижение CT-FFR МГ ≤0,68 ассоциировано с повышением шанса наличия регионарной ишемии (отношение шансов 0,497; 95% доверительный интервал: 0,33-0,73; p&lt;0,001).</p></sec><sec><title>Заключение</title><p>Заключение. Результаты пилотного исследования подтверждают, что трехмерная модель CT-FFR, на основе МСКТ-КАГ, обладает высокой информативностью для оценки анатомической и функциональной значимости стенозов КА и может быть использована для неинвазивной диагностики ишемии миокарда.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To evaluate the informative value of a 3D physicomathematical model of local hemodynamics based on coronary computed tomography angiography (CCTA) data for noninvasive determination of the functional significance of coronary artery (CA) stenosis.</p></sec><sec><title>Material and methods</title><p>Material and methods. The study included 15 patients (mean age 57,6±8,9 years) with stable coronary artery disease (CAD). All patients underwent CCTA, and 9 patients underwent myocardial perfusion scintigraphy (MPS). Based on the CCTA images, 3D coronary artery models were constructed, in which fractional flow reserve (CT-FFR) was calculated at rest and during simulated hyperemia using COMSOL Multiphysics®. The modeling results were compared with the stenosis degree and ischemia signs based on the MPS data.</p></sec><sec><title>Results</title><p>Results. A total of 76 coronary vascular segments were analyzed. CT-FFR in simulated hyperemia values were significantly lower (p&lt;0,001) in segments with stenosis ≥50% (0,53 [0,37-0,65]) and ≥70% (0,47 [0,34-0,55]) compared to non-obstructive lesions &lt;50% (0,88 [0,83-0,96]) and &lt;70% (0,87 [0,81-0,95]). A negative correlation was found between the stenosis degree and CT-FFR in simulated hyperemia (ρ=-0,485, p&lt;0,05). ROC analysis demonstrated high diagnostic accuracy of CT-FFR in simulated hyperemia for stenoses ≥50% (AUC=0,9; sensitivity 93,7%; specificity 86,7%) and ≥70% (AUC=0,9; sensitivity 100%; specificity 83,6%). In vascular regions with perfusion defects according to MPS data, CT-FFR in simulated hyperemia were significantly lower (0,49±0,21 vs 0,82±0,18, p&lt;0,001). Logistic analysis showed that a decrease in CTFFR in simulated hyperemia ≤0,68 was associated with an increased odds of regional ischemia (odds ratio 0,497; 95% confidence interval 0,33-0,73; p&lt;0,001).</p></sec><sec><title>Conclusion</title><p>Conclusion. The pilot study results confirm that the three-dimensional CT-FFR model, based on CCTA, is highly informative for assessing the anatomical and functional significance of coronary artery stenoses and can be used for non-invasive diagnosis of myocardial ischemia.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>ишемическая болезнь сердца</kwd><kwd>фракционный резерв кровотока</kwd><kwd>компьютерное моделирование</kwd><kwd>коронарная гемодинамика</kwd><kwd>компьютерная томография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coronary artery disease</kwd><kwd>fractional flow reserve</kwd><kwd>computer modeling</kwd><kwd>coronary hemodynamics</kwd><kwd>computed tomography</kwd></kwd-group><funding-group><funding-statement xml:lang="en">-</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">Tonino PA, De Bruyne B, Pijls NH, et al. 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