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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">medvis</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская визуализация</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Visualization</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-0763</issn><issn pub-type="epub">2408-9516</issn><publisher><publisher-name>RDS-Media Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24835/1607-0763-1664</article-id><article-id custom-type="elpub" pub-id-type="custom">medvis-1664</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>Головной мозг</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Brain</subject></subj-group></article-categories><title-group><article-title>Гипераммониемическая энцефалопатия на фоне острой дисфункции печени у пациентов с сепсисом: анализ нейровизуализационных паттернов</article-title><trans-title-group xml:lang="en"><trans-title>Hyperammonemic encephalopathy associated with acute liver dysfunction in patients with sepsis: evaluation of neuroimaging features</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3820-2057</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Талыбов</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Talybov</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Талыбов Рустам Сабирович – канд. мед. наук, заместитель главного врача по развитию науки и инновациям ГБУЗ Тюменской области “Областная клиническая больница №2”; ассистент кафедры онкологии, радиологии и радиотерапии  ФГБОУ ВО “Тюменский государственный медицинский университет” Минздрава России, Тюмень<ext-link xlink:href="https://orcid.org/0000-0003-3820-2057" ext-link-type="uri">https://orcid.org/0000-0003-3820-2057</ext-link></p></bio><bio xml:lang="en"><p>Rustam S. Talybov –  Cand. of Sci. (Med.), Head Deputy Chief Physician for Science and Innovation Development, Tyumen Regional Clinical Hospital №2; assistant of the Department of Oncology, radiology and radiation therapy, Tyumen State Medical University, Tyumen, Russia<ext-link xlink:href="https://orcid.org/0000-0003-3820-2057" ext-link-type="uri">https://orcid.org/0000-0003-3820-2057</ext-link></p></bio><email xlink:type="simple">rustam230789@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/0000-0003-4871-2341</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трофимова</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Trofimova</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трофимова Татьяна Николаевна – член-корр. РАН, доктор мед. наук, профессор, профессор кафедры рентгенологии и радиологии ФГБОУ ВО “Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова” Минздрава России, Санкт-Петербург<ext-link xlink:href="https://orcid.org/0000-0003-4871-2341" ext-link-type="uri">https://orcid.org/0000-0003-4871-2341</ext-link></p></bio><bio xml:lang="en"><p>Tatyana N. Trofimova – Corresponding Member of the Russian Academy of Sciences, Doct. of Sci. (Med.), Professor, professor of Department of Radiology, First Pavlov State Medical University of St. Petersburg, St. Petersburg, Russia<ext-link xlink:href="https://orcid.org/0000-0003-4871-2341" ext-link-type="uri">https://orcid.org/0000-0003-4871-2341</ext-link></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/0000-0001-6893-7973</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клещевникова</surname><given-names>Т. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kleshchevnikova</surname><given-names>T. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клещевникова Татьяна Михайловна – канд. мед. наук, директор ГБУЗ Тюменской области “Областная клиническая больница №2”, Тюмень<ext-link xlink:href="https://orcid.org/0000-0001-6893-7973" ext-link-type="uri">https://orcid.org/0000-0001-6893-7973</ext-link></p></bio><bio xml:lang="en"><p>Tatyana M. Kleshchevnikova – Сand. of Sci. (Med.), Director of Tyumen Regional Clinical Hospital №2, Tyumen<ext-link xlink:href="https://orcid.org/0000-0001-6893-7973" ext-link-type="uri">https://orcid.org/0000-0001-6893-7973</ext-link></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/0000-0003-1833-1687</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фёдоров</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorov</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фёдоров Николай Михайлович – канд. мед. наук, доцент, доцент кафедры онкологии, радиологии и радиотерапии ФГБОУ ВО “Тюменский государственный медицинский университет” Минздрава России, Тюмень<ext-link xlink:href="https://orcid.org/0000-0003-1833-1687" ext-link-type="uri">https://orcid.org/0000-0003-1833-1687</ext-link></p></bio><bio xml:lang="en"><p>Nikolai M. Fedorov – Can. of Sci. (Med.), associate professor of the Department of Oncology, radiology and radiation therapy, Tyumen State Medical University, Tyumen, Russia<ext-link xlink:href="https://orcid.org/0000-0003-1833-1687" ext-link-type="uri">https://orcid.org/0000-0003-1833-1687</ext-link></p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ Тюменской области “Областная клиническая больница №2”; &#13;
ФГБОУ ВО “Тюменский государственный медицинский университет” Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tyumen Regional Clinical Hospital №2; Tyumen State Medical University of the Ministry of Healthcare of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО “Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова” Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГБУЗ Тюменской области “Областная клиническая больница №2”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tyumen Regional Clinical Hospital №2</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБОУ ВО “Тюменский государственный медицинский университет” Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tyumen State Medical 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>01</day><month>10</month><year>2026</year></pub-date><volume>30</volume><issue>3</issue><fpage>26</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Талыбов Р.С., Трофимова Т.Н., Клещевникова Т.М., Фёдоров Н.М., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Талыбов Р.С., Трофимова Т.Н., Клещевникова Т.М., Фёдоров Н.М.</copyright-holder><copyright-holder xml:lang="en">Talybov R.S., Trofimova T.N., Kleshchevnikova T.M., Fedorov N.M.</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://medvis.rdsmedia.ru/jour/article/view/1664">https://medvis.rdsmedia.ru/jour/article/view/1664</self-uri><abstract><sec><title>        </title><p>        </p></sec><sec><title>Цель исследования</title><p>Цель исследования: охарактеризовать МРТ-семиотику поражения головного мозга у пациентов с гипераммониемической энцефалопатией на фоне сепсиса и определить характерные нейровизуализационные паттерны.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В проспективном исследовании был проведен анализ данных и результатов МРТ головного мозга и исходов у 15 пациентов с сепсисом и клинически подтвержденной ГЭ, наблюдавшихся в нашем учреждении. Оценка церебральных изменений выполнялась с использованием стандартного МРТ-протокола. В процессе анализа определяли следующие параметры: локализацию и характер интенсивности МР-сигнала от очагов поражения, наличие или отсутствие рестрикции диффузии, присутствие артефактов искажения магнитного поля, а также обратимость структурных изменений.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе анализа нейровизуализации патологические изменения выявлены у всех 15 пациентов. У 13 (86,7%) пациентов зарегистрированы симметричные поражения коры островковых долей и поясных извилин; у 1 (6,7%) пациента отмечены симметричные поражения базальных ганглиев, у 1 (6,7%) пациента зарегистрированы кортико-субкортикальные поражения в больших полушариях головного мозга. Все выявленные поражения характеризовались гиперинтенсивным сигналом на Т2/T2-Flair взвешенных изображениях, при оценке диффузионно-взвешенных изображений у всех пациентов наблюдался цитотоксический отек. Всем пациентам выполнялось контрольное МРТ-исследование после коррекции лечения, зафиксирован регресс всех отмеченных изменений на фоне нормализации уровней аммиака, печеночных трансаминаз, лактата, маркеров сепсиса.</p></sec><sec><title>Заключение</title><p>Заключение. Проведенное исследование позволило охарактеризовать МРТ-семиотику ГЭ у пациентов с сепсисом и определить ее ключевые нейровизуализационные паттерны. Билатеральный инсулярно-поясной паттерн поражения следует рассматривать в качестве потенциального ценного нейровизуализационного маркёра, позволяющего осуществлять раннюю верификацию ГЭ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. To investigate characteristic magnetic resonance imaging (MRI) findings of the brain in patients with hyperammonemic encephalopathy (HE) and to identify the main neuroimaging features of this pathology.</p></sec><sec><title>Methods</title><p>Methods. A prospective study analyzed brain MRI data from 15 patients with sepsis and clinically confirmed HE. Assessment of cerebral changes was performed using a standard MRI protocol. The following parameters were evaluated during the analysis: localization and signal intensity characteristics of the lesions on MRI, presence or absence of diffusion restriction, presence magnetic susceptibility artifacts, as well as reversibility of structural changes.</p></sec><sec><title>Results</title><p>Results. Neuroimaging revealed pathological changes in all 15 patients. In 13 patients (86.7%) had symmetrical lesions of the insular cortex and cingulate gyrus; 1 patient (6.7%) had symmetrical lesions of the basal ganglia; and in 1 patient (6.7%) had cortico-subcortical lesions in the cerebral hemispheres. All detected lesions were characterized by hyperintense signal on T2-weighted and T2-FLAIR images. On diffusion-weighted imaging (DWI), cytotoxic edema was observed in all patients. Follow-up MRI was performed in all patients after treatment adjustment and renal replacement therapy, demonstrating marked regression of all noted changes, concurrent with normalization of serum ammonia, lactate, transaminases, sepsis markers.</p></sec><sec><title>Conclusion</title><p>Conclusion. The present study characterized the MRI semiotics HE in patients with sepsis and identified its key neuroimaging patterns. The bilateral insular‑cingulate pattern should be considered a potentially valuable neuroimaging marker enabling early verification of HE.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сепсис</kwd><kwd>острая дисфункция печени</kwd><kwd>гипераммониемия</kwd><kwd>гипераммониемическая энцефалопатия</kwd><kwd>МРТ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sepsis</kwd><kwd>acute liver failure</kwd><kwd>hyperammonemia</kwd><kwd>hyperammonemic encephalopathy</kwd><kwd>MRI</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">Гусев Е.Ю., Зотова Н.В., Черешнев В.А. “Сепсис-3”: новая редакция – старые проблемы. Анализ с позиции общей патологии. Инфекция и иммунитет. 2021; 11 (4): 649–662. https://doi.org/10.15789/2220-7619- SAN-1629</mixed-citation><mixed-citation xml:lang="en">Gusev E.Yu., Zotova N.V., Chereshnev V.A. 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