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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">transmed</journal-id><journal-title-group><journal-title xml:lang="ru">Трансляционная медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Translational Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2311-4495</issn><issn pub-type="epub">2410-5155</issn><publisher><publisher-name>Almazov National Medical Research Centre, Saint Petersburg, Russia</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18705/2311-4495-2025-12-2-171-181</article-id><article-id custom-type="edn" pub-id-type="custom">DTTWIS</article-id><article-id custom-type="elpub" pub-id-type="custom">transmed-1034</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>РАДИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADIOLOGY</subject></subj-group></article-categories><title-group><article-title>Возможности метода Т2*-релаксометрии в диагностике гипоксии головного мозга плода</article-title><trans-title-group xml:lang="en"><trans-title>Possibilities of the T2* relaxometry method in the diagnosis of hypoxia of the fetal brain</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-7083-3840</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Параскун</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Paraskun</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Параскун Ксения Алексеевна - лаборант лаборатории функциональной нейровизуализации, ФГБУН Институт «Международный томографический центр» СО РАН.</p><p>ул. Институтская, 3А, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>Kseniia A. Paraskun - laboratory assistant of Laboratory of Functional Neuroimaging, International tomography center, Siberian Branch of Russian Academy of Sciences.</p><p>Institutskaya str., 3A, Novosibirsk, 630090</p></bio><email xlink:type="simple">paraskunksu@yandex.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/0000-0002-5332-2607</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савелов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Savelov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савелов Андрей Александрович - к.ф-м.н., старший научный сотрудник.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Andrey A. Savelov - Ph.D., Senior Researcher, International tomography center, Siberian Branch of Russian Academy of Sciences.</p><p>Novosibirsk</p></bio><email xlink:type="simple">as@tomo.nsc.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0095-8994</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коростышевская</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Korostyshevskaya</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коростышевская Александра Михайловна - д.м.н., ведущий научный сотрудник, заведующая отделением медицинской диагностики.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Aleksandra M. Korostyshevskaya - M.D., Leading Researcher, Head of the Department of Medical Diagnostics, International tomography center, Siberian Branch of Russian Academy of Sciences.</p><p>Novosibirsk</p></bio><email xlink:type="simple">koro@tomo.nsc.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки Институт «Международный томографический центр» Сибирского отделения Российской академии наук; Федеральное государственное автономное образовательное учреждение высшего образования «Новосибирский национальный исследовательский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>International tomography center, Siberian Branch of Russian Academy of Sciences; Novosibirsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки Институт «Международный томографический центр» Сибирского отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>International tomography center, Siberian Branch of Russian Academy of Sciences</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>07</month><year>2025</year></pub-date><volume>12</volume><issue>2</issue><fpage>171</fpage><lpage>181</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Параскун К.А., Савелов А.А., Коростышевская А.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Параскун К.А., Савелов А.А., Коростышевская А.М.</copyright-holder><copyright-holder xml:lang="en">Paraskun K.A., Savelov A.A., Korostyshevskaya A.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://transmed.almazovcentre.ru/jour/article/view/1034">https://transmed.almazovcentre.ru/jour/article/view/1034</self-uri><abstract><p>Существующие в настоящее время способы оценки оксигенации мозга плода являются косвенными и приводят либо к недооценке клинической ситуации, либо, наоборот, к чрезмерным акушерским вмешательствам. При гипоксии в тканях увеличивается количество дезоксигемоглобина, который, обладая парамагнитными свойствами, сокращает Т2*-время релаксации (Т2*-ВР). Этот феномен открывает возможность использования Т2*-ВР как специфического диагностического маркера гипоксии головного мозга при проведении МРТ плода.</p><p>Настоящий обзор посвящен исследованию современного состояния метода Т2* магнитно-резонансной релаксометрии в диагностике гипоксических состояний головного мозга плода. Приведены имеющиеся на сегодняшний день сведения о Т2*-ВР различных структур мозга плода и их изменениях при различных патологических состояниях. Согласно данным исследований, приведенным в настоящем обзоре, Т2*-время релаксации тканей мозга плода уменьшается с гестационным возрастом, что связано как с физиологическим уменьшением оксигенации мозга, особенно в третьем триместре, так и с естественным созреванием ткани при развитии плода. Также в ряде исследований наблюдается заметное снижение Т2*-ВР мозга плода при различных гипоксических состояниях.</p><p>МРТ плода является технически сложным из-за маленького размера мозга, непредсказуемых движений плода, а также ряда материнских факторов. В обзоре рассмотрены различные способы быстрого получения и обработки Т2*-взвешенных изображений (ВИ), устойчивые к хаотичным движениям плода.</p><p>Представленный материал может быть использован для дальнейшего освоения количественной Т2*-релаксометрии в пренатальной диагностике.</p></abstract><trans-abstract xml:lang="en"><p>The currently existing methods for assessing fetal brain oxygenation are indirect and lead either to underestimation of the clinical situation or, conversely, to excessive obstetric interventions. During hypoxia, the amount of paramagnetic deoxyhemoglobin in tissues increases, so it reduces the T2* relaxation time. This phenomenon opens up the possibility of using T2* as a specific diagnostic marker of brain hypoxia during fetal MRI. This review is devoted to the study of the capabilities of the T2* magnetic resonance relaxometry method in the diagnosis of hypoxic conditions of the fetal brain. The currently available data on T2* of various fetal brain structures and their changes in various pathological conditions are presented. According to the data from the studies presented in this review, T2* relaxation time of fetal brain tissue decreases with gestational age, which is associated with both a physiological decrease in brain oxygenation, especially in the third trimester, and with the natural maturation of tissue during fetal development. Also, a number of studies have observed a noticeable decrease in T2* relaxation time of the fetal brain under various hypoxic conditions.</p><p>Fetal MRI is technically challenging due to the small size of the brain, unpredictable fetal movements, and also a number of maternal factors. All researchers indicate a decrease of T2* in the presence of hypoxia. In the review various methods for quickly obtaining and processing T2*-weighted images that are resistant to chaotic fetal movements are considered. The presented material can be used for further development of quantitative T2* relaxometry in prenatal diagnostics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипоксия</kwd><kwd>градиентное эхо</kwd><kwd>магнитно-резонансная томография</kwd><kwd>мозг плода</kwd><kwd>пренатальная диагностика</kwd><kwd>Т2*-релаксометрия</kwd><kwd>эхо-планарная визуализация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>echo-planar imaging</kwd><kwd>fetal brain</kwd><kwd>gradient echo</kwd><kwd>hypoxia</kwd><kwd>magnetic resonance imaging</kwd><kwd>prenatal diagnostics</kwd><kwd>T2* relaxometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 25-25-00023 (https://rscf.ru/project/25-25-00023/). Параскун К.А. благодарит Минобрнауки России (гос. задание: 1023110800234-5-3.2.25;3.1.4;3.2.12, «Изучение процессов постинсультной структурно-функциональной реорганизации головного мозга современными методами нейровизуализации») за доступ к оборудованию.</funding-statement><funding-statement xml:lang="en">The study was founded by the Russian Science Foundation (Project No. 25-25-00023 https://rscf.ru/ project/25-25-00023/). Paraskun K.A. thanks the Ministry of Education and Science of Russia (№: 1023110800234-5-3.2.25;3.1.4;3.2.12, “Post-stroke structural and functional brain reorganization study by modern neurovisualisation methods”) for access to equipment.</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">Masselli G, Vaccaro Notte MR, Zacharzewska-Gondek A, et al. Fetal MRI of CNS abnormalities. Clin Radiol. 2020;75(8):640.e1–640.e11. 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