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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">bioph</journal-id><journal-title-group><journal-title xml:lang="ru">Biomedical Photonics</journal-title><trans-title-group xml:lang="en"><trans-title>Biomedical Photonics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2413-9432</issn><publisher><publisher-name>Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24931/2413-9432-2025-14-3-30-38</article-id><article-id custom-type="elpub" pub-id-type="custom">bioph-733</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Применение модели Кубелки-Мунка для быстрого интраоперационного анализа оптических свойств стенки кишечника  с помощью оптоволоконного спектрометра</article-title><trans-title-group xml:lang="en"><trans-title>Application of the Kubelka-Munk model for fast intraoperative analysis of intestinal optical properties using a fiber optic spectrometer</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>Савельева</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Savelieva</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">savelevat@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>Кривецкая</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krivetskaya</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кустов</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kustov</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клобуков</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Klobukov</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романишкин</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanishkin</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Линьков</surname><given-names>К. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Linkov</surname><given-names>K. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левкин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Levkin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Харнас</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kharnas</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лощенов</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Loschenov</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт общей физики им. А.М. Прохорова Российской академии наук; Национальный исследовательский ядерный университет «МИФИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Prokhorov General Physics Institute of the Russian Academy of Sciences; Institute of Engineering Physics for Biomedicine, National Research Nuclear University MEPhI</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт общей физики им. А.М. Прохорова Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Prokhorov General Physics Institute of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет «МИФИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Engineering Physics for Biomedicine, National Research Nuclear University MEPhI</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Университетская Клиническая больница №1 Первого МГМУ им. Сеченова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Faculty Surgery No. 1, I.M. Sechenov First Moscow State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Институт общей физики им. А.М. Прохорова Российской академии наук; Национальный исследовательский ядерный университет «МИФИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Prokhorov General Physics Institute of the Russian Academy of Sciences;  Institute of Engineering Physics for Biomedicine, National Research Nuclear University MEPhI</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>17</day><month>10</month><year>2025</year></pub-date><volume>14</volume><issue>3</issue><fpage>30</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савельева Т.А., Кривецкая А.А., Кустов Д.М., Клобуков М.И., Романишкин И.Д., Линьков К.Г., Левкин В.В., Харнас С.С., Лощенов В.Б., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Савельева Т.А., Кривецкая А.А., Кустов Д.М., Клобуков М.И., Романишкин И.Д., Линьков К.Г., Левкин В.В., Харнас С.С., Лощенов В.Б.</copyright-holder><copyright-holder xml:lang="en">Savelieva T.A., Krivetskaya A.A., Kustov D.M., Klobukov M.I., Romanishkin I.D., Linkov K.G., Levkin V.V., Kharnas S.S., Loschenov V.B.</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.pdt-journal.com/jour/article/view/733">https://www.pdt-journal.com/jour/article/view/733</self-uri><abstract><p>Интраоперационное определение оптических свойств биологических тканей является важной задачей медицинской физики, в частности, при планировании фотодинамической терапии, поскольку позволяет персонализировать фотодинамическое воздействие за счет точного расчета необходимой световой дозы. В данной работе предложен новый подход к одновременному измерению спектров диффузного отражения и пропускания света тканью стенки толстой кишки при формировании кишечного анастомоза, основанный на использовании двух волоконно-оптических устройств для подачи широкополосного излучения как со стороны просвета кишки, так и с наружной стороны кишечной стенки, с которой также регистрируется диффузно рассеянный свет. Для восстановления оптических свойств этих тканей предложено использовать модель Кубелки-Мунка с преобразованием оптических параметров моде ли в оптические параметры теории диффузионного приближения с использованием собственных уравнений на основе результатов численного моделирования. Предложенный подход апробирован ex vivo на биологических образцах тканей желудочно-кишечного тракта, что позволяет сделать вывод о его применимости в клинических условиях.</p></abstract><trans-abstract xml:lang="en"><p>Intraoperative determination of optical properties of biological tissues is an important task of medical physics, in particular, for photodynamic therapy, because it allows personalizing photodynamic treatment by accurately calculating the required light dose. In this work, we propose a new approach to simultaneous measurement of diffuse reflectance and transmission spectra of the colon wall tissue during intestinal anastomosis, based on the use of two fiber-optic devices to deliver broadband radiation both from the side of the intestinal lumen and from the outer side of the intestinal wall, from which diffuse scattered light is also recorded. To restore the optical properties of these tissues it was proposed to use the Kubelka-Munk model with transformation of the optical parameters of the model into the optical parameters of the diffusion approximation theory with custom equations based on the results of numerical modeling. The proposed approach have been tested ex vivo on the biological samples of GIT tissues, allowing us to conclude on its applicability in clinical conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оптическая спектроскопия</kwd><kwd>оптические свойства</kwd><kwd>теория переноса излучения</kwd><kwd>желудочно-кишечный тракт.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optical spectroscopy</kwd><kwd>optical properties</kwd><kwd>light transport model</kwd><kwd>gastrointestinal tract</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was funded by the Russian Science Foundation,  grant No. 25-25-00516.</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">Кривецкая А.А., Савельева Т.А., Кустов Д.М., Левкин В.В., Харнас С.С., Лощенов В.Б. 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