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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1100</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2023-19-2-34-46</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>MAMMOLOGY. ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МАММОЛОГИЯ. ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Assessment of resection margins during breast-conserving surgery using multimodal optical coherence tomography</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка границ резекции рака молочной железы при органосохраняющих операциях с использованием мультимодальной оптической когерентной томографии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6692-2081</contrib-id><name-alternatives><name xml:lang="en"><surname>Vorontsov</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Воронцов</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dmitriy A. Vorontsov.</p><p>11/1 Delovaya St., Nizhny Novgorod 603126</p></bio><bio xml:lang="ru"><p>Воронцов Дмитрий Алексеевич.</p><p>603126 Нижний Новгород, ул. Деловая, 11/1</p></bio><email>dr.vorontsovdmitriy@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5416-3241</contrib-id><name-alternatives><name xml:lang="en"><surname>Gubarkova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Губарькова</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603950</p></bio><bio xml:lang="ru"><p>603950 Нижний Новгород, площадь Минина и Пожарского, 10/1</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4665-8292</contrib-id><name-alternatives><name xml:lang="en"><surname>Sirotkina</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Сироткина</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603950</p></bio><bio xml:lang="ru"><p>603950 Нижний Новгород, площадь Минина и Пожарского, 10/1</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5325-8334</contrib-id><name-alternatives><name xml:lang="en"><surname>Sovetskiy</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Советский</surname><given-names>А. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>46 Ulyanova St., Nizhny Novgorod 603950</p></bio><bio xml:lang="ru"><p>603950 Нижний Новгород, ул. Ульянова, 46</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2149-7728</contrib-id><name-alternatives><name xml:lang="en"><surname>Aleksakhina</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Алексахина</surname><given-names>С. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1471-9473</contrib-id><name-alternatives><name xml:lang="en"><surname>Tabagua</surname><given-names>T. T.</given-names></name><name xml:lang="ru"><surname>Табагуа</surname><given-names>Т. Т.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0940-6491</contrib-id><name-alternatives><name xml:lang="en"><surname>Busko</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Бусько</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4529-7891</contrib-id><name-alternatives><name xml:lang="en"><surname>Imyanitov</surname><given-names>E. N.</given-names></name><name xml:lang="ru"><surname>Имянитов</surname><given-names>Е. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8271-3471</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuznetsov</surname><given-names>S. S.</given-names></name><name xml:lang="ru"><surname>Кузнецов</surname><given-names>С. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>11/1 Delovaya St., Nizhny Novgorod 603126</p></bio><bio xml:lang="ru"><p>603126 Нижний Новгород, ул. Деловая, 11/1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3657-5274</contrib-id><name-alternatives><name xml:lang="en"><surname>Vorontsov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Воронцов</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>11/1 Delovaya St., Nizhny Novgorod 603126</p></bio><bio xml:lang="ru"><p>603126 Нижний Новгород, ул. Деловая, 11/1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2097-0525</contrib-id><name-alternatives><name xml:lang="en"><surname>Zagaynova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Загайнова</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603950</p></bio><bio xml:lang="ru"><p>603950 Нижний Новгород, площадь Минина и Пожарского, 10/1</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0223-0753</contrib-id><name-alternatives><name xml:lang="en"><surname>Gamayunov</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Гамаюнов</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>11/1 Delovaya St., Nizhny Novgorod 603126</p></bio><bio xml:lang="ru"><p>603126 Нижний Новгород, ул. Деловая, 11/1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2122-2943</contrib-id><name-alternatives><name xml:lang="en"><surname>Zaytsev</surname><given-names>V. Yu.</given-names></name><name xml:lang="ru"><surname>Зайцев</surname><given-names>В. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>46 Ulyanova St., Nizhny Novgorod 603950</p></bio><bio xml:lang="ru"><p>603950 Нижний Новгород, ул. Ульянова, 46</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4898-9159</contrib-id><name-alternatives><name xml:lang="en"><surname>Krivorotko</surname><given-names>P. V.</given-names></name><name xml:lang="ru"><surname>Криворотько</surname><given-names>П. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8386-7157</contrib-id><name-alternatives><name xml:lang="en"><surname>Gladkova</surname><given-names>N. D.</given-names></name><name xml:lang="ru"><surname>Гладкова</surname><given-names>Н. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603950</p></bio><bio xml:lang="ru"><p>603950 Нижний Новгород, площадь Минина и Пожарского, 10/1</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Nizhny Novgorod Regional Oncologic Hospital</institution></aff><aff><institution xml:lang="ru">ГБУЗ НО «Нижегородский областной клинический онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Privolzhsky Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Приволжский исследовательский медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Федеральный исследовательский центр Институт прикладной физики им. А.В. Гапонова-Грехова Российской академии наук»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">N.N. Petrov National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Петрова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-08-05" publication-format="electronic"><day>05</day><month>08</month><year>2023</year></pub-date><volume>19</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>34</fpage><lpage>46</lpage><history><date date-type="received" iso-8601-date="2023-05-20"><day>20</day><month>05</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-08-05"><day>05</day><month>08</month><year>2023</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/1100">https://ojrs.abvpress.ru/ojrs/article/view/1100</self-uri><abstract xml:lang="en"><p><bold>Background</bold>. Breast cancer (BC) has been ranked first in morbidity and mortality among the female population in Russian Federation for several years. Rapid and accurate intraoperative examination of the cleanliness of resection margins is the main condition for breast-conserving surgery (BCS) to reduce the risks of local recurrence.</p><p><bold>Aim</bold>. To examine the tumor margins and assess the cleanliness of the resection margins in BCS in patients diagnosed with BC using multimodal optical coherence tomography (MM OCT) with comparative planned histological and additional molecular genetic analysis.</p><p><bold>Materials and methods</bold>. The study was carried out on postoperative samples of tumor and non-tumor breast tissue obtained from 115 patients with BC T1–2N0M0G<sub>2–3</sub> stage IA–IIA, after BCS in the volume of radical resection or lumpectomy with histological control of the resection margins. A spectral domain MM OCT device (OCT 1300-E, BioMedTech LLC, Russia) was used, which provides structural OCT images to study the backscattering properties of tissue and allows performing a quantitative assessment of the elastic properties of the tissue by compression optical coherence elastography (OCE).</p><p><bold>Results</bold>. The MM OCT method was able to determine the exact margins between the tumor and non-tumor breast tissue. The main signs of the tumor were a decrease in the level and depth of penetration of the OCT signal in the structural OCT images, as well as an increase in the stiffness values (&gt;200 kPa) in the OCE images with the highest stiffness values (&gt;600 kPa) in the area of tumor cell accumulations. The use of compression OCE made it possible to detect clusters of tumor cells in the margins of resection at a distance of 5 mm from the visible border of the tumor. Among the 132 studied resection margins in 6 cases, the positive resection margin was determined by the OCE method, which was subsequently confirmed histologically. The negative resection margins were characterized by the lowest stiffness values (&lt;200 kPa) in the OCE images and were confirmed by both histological analysis and molecular genetic analysis. ROC-analysis established a threshold stiffness value of 159.8 kPa, which indicates the presence of tumor tissue at the resection margins in the presence of a high stiffness area larger than 500 µm. The high diagnostic accuracy of the OCE method (98.5 %) was determined to distinguish between the negative and positive resection margins during BCS.</p><p><bold>Conclusion</bold>. The use of MM OCT with OCE modality makes it possible to clearly distinguish different types of breast tissue in BC (adipose tissue, connective tissue, accumulation of tumor cells). MM OCT can be used as an additional intraoperative tool for visualizing tumor cells boundaries and assessing the cleanliness of resection margins in real time during BCS.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Рак молочной железы (РМЖ) уже несколько лет занимает 1-е место по заболеваемости и смертности среди женского населения на территории РФ. Срочное и тщательное интраоперационное исследование чистоты краев резекции является основным условием снижения риска развития местного рецидива при органосохраняющих операциях (ОСО).</p><p><bold>Цель исследования</bold> – изучение границ опухоли и оценка чистоты краев резекции при ОСО у пациенток с диагнозом РМЖ с использованием мультимодальной оптической когерентной томографии (мм ОКТ) со сравнительным плановым гистологическим и дополнительным молекулярно-генетическим анализом.</p><p><bold>Материалы и методы</bold>. Послеоперационные образцы опухолевой и неопухолевой ткани молочной железы, полученные от 115 больных РМЖ T1–2N0M0G<sub>2–3</sub> стадии IA–IIA, которым была проведена ОСО в объеме радикальной резекции или лампэктомии с гистологическим контролем краев резекции. В работе использован спектральный мм ОКТ-прибор (ОКТ 1300-е, ООО «Биомедтех», Россия), который обеспечивает получение структурных ОКТ-изображений для изучения рассеивающих свойств ткани и выполнение количественной оценки упругих свойств ткани методом компрессионной оптической когерентной эластографии (ОКЭ).</p><p><bold>Результаты</bold>. Методом ММ ОКТ удалось определить точные границы между опухолевой и неопухолевой тканью молочной железы. Основными признаками опухолевой ткани являлись снижение уровня и глубины проникновения ОКТ-сигнала на структурных ОКТ-изображениях, а также повышение значений жесткости (&gt;200 кПа) на ОКЭ-изображениях с самыми высокими значениями жесткости (&gt;600 кПа) в области скопления опухолевых клеток. Использование компрессионной ОКЭ позволило обнаружить скопления опухолевых клеток в краях резекции на расстоянии 5 мм от видимой границы опухоли. среди 132 исследуемых краев резекции в 6 случаях методом ОКЭ был зафиксирован положительный край резекции, что впоследствии было подтверждено гистологически. Отрицательные края резекции характеризовались самыми низкими значениями жесткости (&lt;200 кПа) на ОКЭ-изображениях и были подтверждены как гистологическим анализом, так и молекулярно-генетическим анализом краев резекции. методом ROC-анализа установлено пороговое значение жесткости, равное 159,8 кПа, которое указывает на наличие опухолевой ткани в краях резекции при наличии области высокой жесткости размером &gt;500 мкм. Определена высокая диагностическая точность метода ОКЭ (98,5 %) в различении отрицательного и положительного хирургического края резекции ткани молочной железы.</p><p><bold>Выводы</bold>. Использование мм ОКТ с применением ОКЭ позволяет четко дифференцировать различные типы тканей молочной железы при РМЖ (жировая ткань, соединительная ткань, скопление опухолевых клеток). ММ ОКТ может быть использована в качестве дополнительного интраоперационного инструмента визуализации границ опухоли и оценки чистоты краев резекции в реальном времени при ОСО у больных РМЖ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>compression optical coherence elastography</kwd><kwd>resection margins</kwd><kwd>breast-conserving surgery</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>компрессионная оптическая когерентная эластография</kwd><kwd>края резекции</kwd><kwd>органосохраняющая операция</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Multimodal optical coherence tomography and molecular genetic study of breast tissues were performed with the financial support of the Russian Science Foundation (grant No. 18-75-10068). Methods for constructing and analyzing images of compression optical coherence elastography of biological tissues were developed with the financial support of the Russian Science Foundation (grant No. 22-12-00295).</funding-statement><funding-statement xml:lang="ru">Мультимодальная оптическая когерентная томография и молекулярно-генетическое исследование тканей молочной железы выполнены при финансовой поддержке Российского научного фонда (грант № 18-75-10068). Методы построения и анализа изображений компрессионной оптической когерентной эластографии биологических тканей разработаны при финансовой поддержке Российского научного фонда (грант № 22-12-00295).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sung H., Ferlay J., Siegel R.L. et al. Global Cancer Statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2021;71(3):209–49. 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