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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2025-68-11-996-1005</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-433</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, СИСТЕМЫ И ИЗДЕЛИЯ МЕДИЦИНСКОГО НАЗНАЧЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DEVICES, SYSTEMS AND MEDICAL DEVICES</subject></subj-group></article-categories><title-group><article-title>Программный комплекс для 17-сегментной локализации фиброза миокарда левого желудочка сердца</article-title><trans-title-group xml:lang="en"><trans-title>Software package for 17-segment localization of myocardial fibrosis of the left ventricle of the heart</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>Левчук</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Levchuk</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анатолий Геннадьевич Левчук — аспирант; физический факультет</p><p>Санкт-Петербург </p></bio><bio xml:lang="en"><p>Anatoliy G. Levchuk — Post-Graduate Student; Faculty of Physics</p><p>St. Petersburg </p></bio><email xlink:type="simple">anatolii.levchuk@metalab.ifmo.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>Аль-Хайдри</surname><given-names>В.</given-names></name><name name-style="western" xml:lang="en"><surname>Al-Haidri</surname><given-names>W.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валид Ахмед Ахмед Аль-Хайдри — канд. техн. наук; научный сотрудник</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Walid Al-Haidri — PhD; Faculty of Physics; Researcher</p><p>St. Petersburg </p></bio><email xlink:type="simple">waleed.al.haidri@metalab.ifmo.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>Белоусова</surname><given-names>К. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Belousova</surname><given-names>K. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ксения Михайловна Белоусова — инженер</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Kseniya M. Belousova — Faculty of Physics; Engineer</p><p>St. Petersburg </p></bio><email xlink:type="simple">kseniia.belousova@metalab.ifmo.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>Фокин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fokin</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Александрович Фокин — д-р мед. наук, профессор</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Vladimir A. Fokin — Dr. Sci., Professor</p><p>St. Petersburg </p></bio><email xlink:type="simple">vladfokin@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>Рыжков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryzhkov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Владимирович Рыжков — отделение магнитно-резонансной томографии; заведующий отделением</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Anton V. Ryzhkov — Department of Magnetic Resonance Imaging; Head of the Department</p><p>St. Petersburg </p></bio><email xlink:type="simple">abanderos83@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>Бендан</surname><given-names>Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Bendahan</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давид Бендан — Национальный центр научных исследований, Центр магнитного резонанса в биологии и медицине; научный директор</p><p>Марсель </p></bio><bio xml:lang="en"><p>David Bendahan — Biological and Medical Magnetic Resonance Center; Research Director</p><p>Marseille </p></bio><email xlink:type="simple">david.bendahan@univ-amu.fr</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>Бруй</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Brui</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Екатерина Алексеевна Бруй — канд. техн. наук; старший научный сотрудник</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ekaterina A. Brui — PhD, Senior Researcher; Faculty of Physics</p><p>St. Petersburg </p></bio><email xlink:type="simple">katya.bruy@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution></aff><aff xml:lang="en"><institution>ITMO University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр им. В. А. Алмазова</institution></aff><aff xml:lang="en"><institution>Almazov National Medical Research Center</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Университет Экс-Марсель</institution></aff><aff xml:lang="en"><institution>Aix-Marseille Université</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>12</month><year>2025</year></pub-date><volume>68</volume><issue>11</issue><fpage>996</fpage><lpage>1005</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/433">https://pribor.ifmo.ru/jour/article/view/433</self-uri><abstract><p>Локализованная количественная оценка фиброза миокарда используется для прогнозирования исходов сердечно-сосудистых заболеваний, выбора терапевтической и хирургической стратегии. В медицинской практике возможности такой оценки затруднены необходимостью ручной или полуавтоматической предобработки изображений. Предложен программный комплекс на основе технологий глубокого обучения для анализа МРизображений сердца с отсроченным контрастированием и количественной оценкой фиброза миокарда. Результаты статистического анализа подготовленного набора данных свидетельствуют о наличии устойчивых корреляций локализованного относительного объема фиброза с клиническими данными по фракциям выброса и степенью сердечной недостаточности у пациентов. Можно отметить выраженную отрицательную корреляцию между степенью сердечной недостаточности и фракцией выброса левого желудочка (p &lt; 0,001). Также выявлена небольшая зависимость между фракцией выброса левого желудочка и относительным объемом фиброза для двух бассейнов — правой коронарной и левой огибающей артерий (p &lt; 0,01). Коэффициент структурного сходства с эталонной разметкой миокарда составил 0,87/0,87/0,88 по метрикам DSC/Precision/Recall для автоматического решения на основе Cascade-U-Net. Точность классификации уровня левого желудочка обученной моделью U-NetLoc составила 83 %/86 %/95 % в классификации базальных/медиальных/апикальных срезов миокарда. Качество локализации миокарда обученной моделью U-NetBull обеспечивает коэффициент сходства Соренсена–Дайса 0,827/0,778/0,734 в отдельных сегментах базального/медиального/апикального уровня левого желудочка. Предложенный программный комплекс может быть использован в качестве вспомогательного инструмента кардиологами и рентгенологами для повышения диагностической точности.</p></abstract><trans-abstract xml:lang="en"><p>Localized quantitative assessment of myocardial fibrosis is used to predict outcomes of cardiovascular diseases, select therapeutic and surgical strategies. In widespread practice, localized quantitative assessment of myocardial fibrosis is complicated by the need for manual or semiautomatic image preprocessing. A software package based on the use of deep learning technologies for analyzing MR images of the heart with late gadolinium enhancement and quantifying myocardial fibrosis is proposed. The results of statistical analysis of the prepared dataset indicate the presence of stable correlations of localized relative fibrosis volume with clinical data on ejection fractions and the degree of heart failure in patients. A pronounced negative correlation can be noted between the degree of heart failure and the left ventricular ejection fraction (p &lt;0.001). There is also a small correlation between the LV ejection fraction and the relative volume of fibrosis for two basins - RCA and LCx (p &lt; 0.01). The coefficient of structural similarity with the reference marking of the myocardium is 0.87 / 0.87 / 0.88 according to the DSC / Precision / Recall metrics for the automatic Cascade-U-Net-based solution. The accuracy of classification of the left ventricle level on the slice by the trained U-NetLoc model is 83% / 86% / 95% in the classification of basal / medial / apical myocardial slices. The quality of myocardial localization by the trained U-NetBull model ensures the Sorensen–Dice similarity coefficient 0,827/0,778/0,734 in individual segments of the basal / medial / apical level of the left ventricle level. The developed software package for localized quantitative assessment of myocardial fibrosis can be used as an auxiliary tool by cardiologists and radiologists to increase the diagnostic accuracy.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сверточные нейронные сети</kwd><kwd>U-Net</kwd><kwd>миокард</kwd><kwd>фиброз</kwd><kwd>bull’s eye</kwd><kwd>сегментация</kwd><kwd>МРТ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>convolutional neural networks</kwd><kwd>U-Net</kwd><kwd>myocardium</kwd><kwd>fibrosis</kwd><kwd>bull’s eye</kwd><kwd>segmentation</kwd><kwd>MRI</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено за счет гранта Российского научного фонда No 23-75-10045, https://rscf.ru/project/23-75-10045/.</funding-statement><funding-statement xml:lang="en">The research was carried out at the expense of the grant of the Russian Science Foundation No. 23-75-10045, https://rscf.ru/project/23-75-10045 /.</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">Fernandez-Armenta J., Berruezo A., Mont L., Sitges M., Andreu D., Silva E., Ortiz-Perez J. 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