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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">rentrad</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник рентгенологии и радиологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of radiology and nuclear medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0042-4676</issn><issn pub-type="epub">2619-0478</issn><publisher><publisher-name>Limited Liability Company "LUCHEVAYA DIAGNOSTIKA", Russian Association of Radiologists</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20862/0042-4676-2026-107-1-62-75</article-id><article-id custom-type="elpub" pub-id-type="custom">rentrad-1030</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 RESEARCH</subject></subj-group></article-categories><title-group><article-title>Диагностическая эффективность нативного Т1-картирования в стадировании фиброза печени по данным магнитно-резонансной томографии</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostic Effectiveness of Native T1 Mapping in Staging Liver Fibrosis According to Magnetic Resonance Imaging</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8258-522X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченков</surname><given-names>Ю. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenkov</surname><given-names>Yu. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савченков Юрий Николаевич - к. м. н., заведующий отделением лучевой диагностики ГБУЗ «ГКБ им. В.П. Демихова Департамента здравоохранения г. Москвы», ассистент кафедры лучевой диагностики с курсом радиологии Медико-биологического университета инноваций и непрерывного образования ФГБУ «ГНЦ Российской Федерации – Федеральный медицинский биофизический центр им. А.И. Бурназяна» Федерального медико-биологического агентства России.</p><p>Ул. Велозаводская, 1/1, Москва, 115280; Ул. Маршала Новикова, 23, Москва, 123098</p></bio><bio xml:lang="en"><p>Yury N. Savchenkov - Cand. Med. Sc., Head of Department of Radiation Diagnostics, Demikhov City Clinical Hospital; Assistant Professor, Chair of Radiation Diagnostics with a Course in Radiology, Medical and Biological University of Innovation and Continuing Education, State Research Center of the Russian Federation – Burnazyan Federal Medical Biophysical Center of the FMBAR.</p><p>Ul. Velozavodskaya, 1/1, Moscow, 11528; Ul. Marshala Novikova, 23, Moscow, 123098</p></bio><email xlink:type="simple">yura_savchenkov@mail.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/0000-0002-1611-5000</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Труфанов</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Trufanov</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Труфанов Геннадий Евгеньевич - д. м. н., профессор, гл. науч. сотр. научно-исследовательского отдела лучевой диагностики, заведующий кафедрой лучевой диагностики и медицинской визуализации с клиникой Института медицинского образования.</p><p>Ул. Аккуратова, 2, Санкт-Петербург, 197341</p></bio><bio xml:lang="en"><p>Gennady E. Trufanov - Dr. Med. Sc., Professor, Chief Researcher, Research Department of Radiation Diagnostics, Chief of Chair of Radiation Diagnostics and Medical Imaging with the Clinic, Institute of Medical Education, Almazov NMRC.</p><p>Ul. Akkuratova, 2, Saint Petersburg, 197341</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7885-9024</contrib-id><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>Фокин Владимир Александрович - д. м. н., профессор, профессор кафедры лучевой диагностики и медицинской визуализации с клиникой Института медицинского образования.</p><p>Ул. Аккуратова, 2, Санкт-Петербург, 197341</p></bio><bio xml:lang="en"><p>Vladimir A. Fokin - Dr. Med. Sc., Professor, Chair of Radiation Diagnostics and Medical Imaging with the Clinic, IME.</p><p>Ul. Akkuratova, 2, Saint Petersburg, 197341</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6084-2061</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ионова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ionova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ионова Елена Александровна - д. м. н., заведующая кафедрой лучевой диагностики с курсом радиологии Медико-биологического университета инноваций и непрерывного образования.</p><p>Ул. Маршала Новикова, 23, Москва, 123098</p></bio><bio xml:lang="en"><p>Elena A. Ionova - Dr. Med. Sc., Chief of Chair of Radiation Diagnostics with a Course in Radiology, Medical and Biological University of Innovation and Continuing Education.</p><p>Ul. Marshala Novikova, 23, Moscow, 123098</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3911-8543</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аракелов</surname><given-names>С. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Arakelov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аракелов Сергей Эрнестович - д. м. н., профессор, главный врач ГБУЗ «ГКБ им. В.П. Демихова Департамента здравоохранения г. Москвы», заведующий кафедрой семейной медицины с курсом паллиативной медицинской помощи ФГАОУ ВО «РУДН им. Патриса Лумумбы».</p><p>Ул. Велозаводская, 1/1, Москва, 115280</p></bio><bio xml:lang="en"><p>Sergey E. Arakelov - Dr. Med. Sc., Professor, Chief Physician, Demikhov City Clinical Hospital; Chief of Chair of Family Medicine with a Course in Palliative Care, PFUR named after Patrice Lumumba.</p><p>Ul. Velozavodskaya, 1/1, Moscow, 11528; ul. Miklukho-Maklaya 6, Moscow, 117198</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-4851-1234</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бодрова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bodrova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бодрова Ольга Валерьевна - ординатор по специальности «рентгенология» кафедры лучевой диагностики и медицинской визуализации с клиникой Института медицинского образования.</p><p>Ул. Аккуратова, 2, Санкт-Петербург, 197341</p></bio><bio xml:lang="en"><p>Olga V. Bodrova - Resident, Chair of Radiation Diagnostics and Medical Imaging with the Clinic, Institute of Medical Education.</p><p>Ul. Akkuratova, 2, Saint Petersburg, 197341</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ «Городская клиническая больница им. В.П. Демихова Департамента здравоохранения г. Москвы»; ФГБУ «Государственный научный центр Российской Федерации – Федеральный медицинский биофизический центр им. А.И. Бурназяна» Федерального медико-биологического агентства России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Demikhov City Clinical Hospital; State Research Center of the Russian Federation – Burnazyan Federal Medical Biophysical Center of the Federal Medical Biological Agency of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр им. В.А. Алмазова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ «Государственный научный центр Российской Федерации – Федеральный медицинский биофизический центр им. А.И. Бурназяна» Федерального медико-биологического агентства России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center of the Russian Federation – Burnazyan Federal Medical Biophysical Center of the Federal Medical Biological Agency of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ГБУЗ «Городская клиническая больница им. В.П. Демихова Департамента здравоохранения г. Москвы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Demikhov City Clinical Hospital; Peoples’ Friendship University of Russia named after Patrice Lumumba</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>19</day><month>05</month><year>2026</year></pub-date><volume>107</volume><issue>1</issue><fpage>62</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савченков Ю.Н., Труфанов Г.Е., Фокин В.А., Ионова Е.А., Аракелов С.Э., Бодрова О.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Савченков Ю.Н., Труфанов Г.Е., Фокин В.А., Ионова Е.А., Аракелов С.Э., Бодрова О.В.</copyright-holder><copyright-holder xml:lang="en">Savchenkov Y.N., Trufanov G.E., Fokin V.A., Ionova E.A., Arakelov S.E., Bodrova O.V.</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.russianradiology.ru/jour/article/view/1030">https://www.russianradiology.ru/jour/article/view/1030</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Фиброз печени является структурным проявлением хронических заболеваний печени, при прогрессировании он приводит к формированию цирроза и развитию связанных с ним осложнений. Нативное Т1-картирование печени рассматривается как количественная методика магнитно-резонансной томографии (МРТ), отражающая выраженность фиброзных изменений, однако ее диагностическая эффективность может модифицироваться тканевым составом печени, включая стеатоз.</p></sec><sec><title>Цель</title><p>Цель: оценить диагностическую эффективность нативного Т1-картирования при стадировании фиброза печени и определить влияние стеатоза на диагностические характеристики методики.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Ретроспективное исследование включало 241 пациента, которым выполнена МРТ брюшной полости с получением нативных карт Т1-релаксации печени по протоколам MOLLI 4(1)3(1)2 и MOLLI 5(3)3 с кардиосинхронизацией по пульсу на одной задержке дыхания. Референсную стратификацию стадии фиброза (F0–F4 по шкале METAVIR) проводили на основе интеграции клинических, лабораторных и инструментальных данных. Дополнительно осуществлена стратификация больных по наличию стеатоза печени, определяемого по значению протонной плотности жировой фракции. Пациентов с признаками перегрузки печени железом исключали из анализа. Оценивали взаимосвязь между значениями нативного Т1-картирования печени и стадией фиброза с использованием корреляционного анализа, а также выполняли межгрупповые сравнения показателей в зависимости от стадии процесса. Диагностические характеристики методики определяли методом ROC-моделирования при разграничении стадий фиброза ≥F2, ≥F3 и F4. Статистический анализ осуществляли с применением непараметрических методов. Для контроля множественных сравнений использовали коррекцию по Бенджамини–Хохбергу. Результаты считали статистически значимыми при частоте ложных срабатываний (false discovery rate, FDR) &lt;0,05.</p></sec><sec><title>Результаты</title><p>Результаты. Установлена статистически значимая положительная связь между значениями нативного Т1-картирования печени и стадией фиброза (ρ=0,779 для MOLLI 4(1)3(1)2 и ρ=0,792 для MOLLI 5(3)3; p&lt;0,001; FDR&lt;0,05). Медианные значения Т1-картирования последовательно возрастали от F0 к F4. Различия между всеми смежными стадиями сохраняли статистическую значимость после FDR-коррекции. По данным ROC-моделирования, нативное Т1-картирование продемонстрировало высокую диагностическую эффективность при стратификации стадий фиброза: AUROC при ≥F2 составила 0,909 и 0,919, при ≥F3 – 0,946 и 0,954, при F4 – 0,972 и 0,981 для протоколов MOLLI 4(1)3(1)2 и MOLLI 5(3)3 соответственно. При наличии стеатоза диагностическая эффективность снижалась при выявлении ≥F2, тогда как при ≥F3 и F4 статистически значимых различий между подгруппами не обнаружено (p&gt;0,05). Полученные данные свидетельствуют о модифицирующем влиянии стеатоза на ранних стадиях фиброза печени.</p></sec><sec><title>Заключение</title><p>Заключение. Нативное Т1-картирование печени по протоколам MOLLI 4(1)3(1)2 и MOLLI 5(3)3 является информативной количественной методикой МРТ при стадировании фиброза. Диагностическая эффективность возрастает при переходе от ≥F2 к ≥F3 и достигает максимальных значений при циррозе печени. Наличие стеатоза сопровождается снижением дискриминационной способности при выявлении ≥F2, что определяет границы применимости методики и обосновывает ее использование в составе мультипараметрического МР-подхода при хронических заболеваниях печени.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Liver fibrosis represents a structural manifestation of chronic liver diseases and, with progression, leads to the development of cirrhosis and related complications. Native liver T1 mapping is considered a quantitative magnetic resonance imaging (MRI) technique reflecting the severity of fibrotic changes; however, its diagnostic performance may be influenced by liver tissue composition, including steatosis.</p></sec><sec><title>Objective</title><p>Objective: to evaluate the diagnostic performance of native T1 mapping for liver fibrosis staging and to assess the impact of steatosis on its diagnostic characteristics.</p></sec><sec><title>Material and methods</title><p>Material and methods. This retrospective study included 241 patients who underwent abdominal MRI with acquisition of native liver T1 relaxation maps using the MOLLI 4(1)3(1)2 and MOLLI 5(3)3 protocols with pulse-triggered cardiac synchronization during a single breath-hold. Reference fibrosis staging (METAVIR F0–F4) was established based on integrated clinical, laboratory, and instrumental data. An additional stratification was performed according to the presence of hepatic steatosis, determined based on proton density fat fraction values. Patients with evidence of hepatic iron overload were excluded from the analysis. The relationship between native liver T1 values and fibrosis stage was assessed using correlation analysis, and intergroup comparisons were performed across fibrosis stages. Diagnostic performance was evaluated using receiver operating characteristic (ROC) analysis for the identification of clinically significant fibrosis (≥F2), advanced fibrosis and cirrhosis (≥F3), and cirrhosis (F4). Statistical analysis was performed using nonparametric methods. Multiple comparisons were controlled using the Benjamini–Hochberg procedure, and results were considered statistically significant at false discovery rate (FDR) &lt;0.05.</p></sec><sec><title>Results</title><p>Results. A statistically significant positive correlation was observed between native liver T1 values and fibrosis stage (ρ=0.779 for MOLLI 4(1)3(1)2 and ρ=0.792 for MOLLI 5(3)3; p&lt;0.001; FDR&lt;0.05). Median T1 values increased progressively from F0 to F4, and differences between all adjacent stages remained significant after FDR correction. ROC analysis demonstrated high diagnostic performance of native T1 mapping for fibrosis stratification: AUROC values for ≥F2 were 0.909 and 0.919; for ≥F3, 0.946 and 0.954; and for F4, 0.972 and 0.981 for MOLLI 4(1)3(1)2 and MOLLI 5(3)3, respectively. In the presence of steatosis, diagnostic performance decreased for ≥F2, whereas no statistically significant differences between subgroups were observed for ≥F3 and F4 (p&gt;0.05). These findings indicate a modifying effect of steatosis primarily at early stages of fibrosis discrimination.</p></sec><sec><title>Conclusion</title><p>Conclusion. Native liver T1 mapping using MOLLI 4(1)3(1)2 and MOLLI 5(3)3 protocols is an informative quantitative MRI technique for fibrosis staging. Diagnostic performance increases from ≥F2 to ≥F3 and reaches its highest level in cirrhosis. The presence of steatosis reduces discriminatory performance for ≥F2, thereby defining the limitations of the technique and supporting its use as part of a multiparametric MRI approach in patients with chronic liver diseases.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>хронические заболевания печени</kwd><kwd>фиброз печени</kwd><kwd>цирроз печени</kwd><kwd>нативное Т1-картирование печени</kwd><kwd>MOLLI</kwd><kwd>протонная плотность жировой фракции</kwd><kwd>магнитно-резонансная томография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic liver diseases</kwd><kwd>liver fibrosis</kwd><kwd>cirrhosis</kwd><kwd>native liver T1 mapping</kwd><kwd>MOLLI</kwd><kwd>proton density fat fraction</kwd><kwd>magnetic resonance imaging</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">Zhuang L, Zhang R, Ren S, et al. 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