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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">radiology</journal-id><journal-title-group><journal-title xml:lang="ru">Радиология — практика</journal-title><trans-title-group xml:lang="en"><trans-title>Radiology - Practice</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2713-0118</issn><publisher><publisher-name>Центральный научно-исследовательский институт лучевой диагностики</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52560/2713-0118-2021-5-39-53</article-id><article-id custom-type="elpub" pub-id-type="custom">radiology-177</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>Приоритет проведения исследования печени на свободном дыхании на 3,0 Тл магнитно-резонансном томографе у детей с тяжелой перегрузкой железом</article-title><trans-title-group xml:lang="en"><trans-title>Secondary Iron Overload in Pediatric Hematology: the Priority of Free-Breathing Liver Study at 3.0 T Magnetic Resonance Scanner in Children with Severe Iron Overload</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0014-9345</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Манжурцева</surname><given-names>Э. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Manzhurtsevа</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Манжурцева Эвелина Эдуардовна, младший научный сотрудник, врач-рентгенолог рентгенологического отделения</p><p>117997, г. Москва, ул. Саморы Машела, 1</p><p>Тел.: +7 (916) 113-39-45</p></bio><bio xml:lang="en"><p>Manzhurtseva Evelina Eduardovna, junior researcher, Radiologist, Radiology department</p><p>1, Samory Mashela, 117997, Moscow, Russia</p><p>Phone number: +7 (916) 113-39-45</p></bio><email xlink:type="simple">evelina.manzhurceva@fccho-moscow.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/0000-0001-7317-7104</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Терещенко</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tereshchenko</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Терещенко Галина Викторовна, кандидат медицинских наук, заведующая рентгенологическим отделением</p><p>117997, г. Москва, ул. Саморы Машела, 1</p><p>Тел.: +7 (495) 287-65-70 (доб. 1220)</p></bio><bio xml:lang="en"><p>Tereshchenko Galina Viktorovna, PhD. Med., Head of the Radiology Department</p><p>1, Samory Mashela, 117997, Moscow, Russia</p><p>Phone number: +7 (495) 287-65-70 (add. 1220)</p></bio><email xlink:type="simple">galina.tereshenko@fccho-moscow.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/0000-0002-5662-896X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куприянов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kupriyanov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куприянов Дмитрий Алексеевич, кандидат физико-математических наук,научный сотрудник; старший специалист по поддержке научных исследований</p><p>117997, г. Москва, ул. Саморы Машела, 1</p><p>123022, г. Москва, ул. Сергея Макеева, 13, 4-й этаж; БЦ «Марр Плаза»</p><p>Тел.: +7 (495) 287-65-70 (доб. 4508)</p><p> </p></bio><bio xml:lang="en"><p>Kupriyanov Dmitry Alekseevich, PhD, Researcher; Senior Research Support Specialist</p><p>1, Samory Mashela, 117997, Moscow, Russia</p><p>13, Sergei Makeev, 123022, Moscow, Russia</p><p>Phone number: +7 (495) 287-65-70 (add. 4508)</p></bio><email xlink:type="simple">dmitry.kupriyanov@philips.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2322-5734</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новичкова</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novichkova</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новичкова Галина Анатольевна, доктор медицинских наук, профессор, генеральный директор</p><p>117997, г. Москва, ул. Саморы Машела, 1</p><p>Тел.: +7 (495) 287-65-70 (доб. 6106)</p></bio><bio xml:lang="en"><p>Novichkova Galina Anatolyevna, М. D. Med., Professor, General Director</p><p>1, Samory Mashela, 117997, Moscow, Russia</p><p>Phone number: +7 (495) 287-65-70 (add. 6106)</p></bio><email xlink:type="simple">galina.novichkova@fccho-moscow.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии имени Дмитрия Рогачева» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Dmitry Rogachev National Medical Research Center Of Pediatric Hematology, Oncology and Immunology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии имени Дмитрия Рогачева» Минздрава России; Philips «Здравоохранение»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Dmitry Rogachev National Medical Research Center Of Pediatric Hematology, Oncology and Immunology; Philips Healthcare</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>29</day><month>08</month><year>2021</year></pub-date><volume>0</volume><issue>5</issue><fpage>39</fpage><lpage>53</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Манжурцева Э.Э., Терещенко Г.В., Куприянов Д.А., Новичкова Г.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Манжурцева Э.Э., Терещенко Г.В., Куприянов Д.А., Новичкова Г.А.</copyright-holder><copyright-holder xml:lang="en">Manzhurtsevа E.E., Tereshchenko G.V., Kupriyanov D.A., Novichkova G.A.</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.radp.ru/jour/article/view/177">https://www.radp.ru/jour/article/view/177</self-uri><abstract><p>Целью исследования являлось сравнение информативности и особенностей сканирования импульсных последовательностей 3Тл-mGRE на задержке дыхания и 3Тл-uTE на свободном дыхании в определении содержания железа в печени у детей с различными степенями перегрузки железом. 108 пациентам в возрасте от 3 до 17 лет с вторичной перегрузкой железом на фоне регулярных гемотрансфузий было проведено МРТ-исследование на 3Тл МР-томографе с использованием специализированных последовательностей для получения релаксометрических карт, на основании которых определялось содержание железа в печени: 3Тл-mGRE и 3Тл-uTE. Была выполнена оценка качества изображений, полученных при помощи последовательностей 3ТлmGRE и 3Тл-uTE путем определения соотношения сигнал-шум (SNR). Было получено, что SNR 3Тл-uTE был выше в 8 раз, чем SNR 3Тл-mGRE. Помимо этого было выявлено, что для пациентов с перегрузкой железом менее 25 мг/г последовательности 3Тл-mGRE и 3Тл-uTE показали одинаковую эффективность в определении железа в печени (r = 0,99, p = 0,54). Концентрацию железа в печени у пациентов с крайне тяжелой перегрузкой железом удалось посчитать только по релаксометрическим картам 3Тл-uTE вследствие высокой ошибки апроксимации результатов при получении карт 3Тл-mGRE. Полученные данные демонстрируют возможность использования последовательности 3Тл-mGRE для определения концентрации железа в печени ниже 25 мг/г. Однако при крайне тяжелой перегрузке железом целесообразнее использовать последовательность 3Тл-uTE.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to compare the effectiveness and scanning features of iron detection in the liver based on 3T MR scanner data using a breath holding and free breathing sequences in children with iron overload. 108 patients aged of 3 to 17 years with secondary iron overload associated with the regular blood transfusions underwent an MRI study on a 3.0 T MR scanner using specialized sequences for obtaining relaxometric maps: 3T-mGRE and 3T-uTE. The quality of the images received by the 3T-mGRE and 3T-uTE sequences was assessed by determining the signal-to-noise ratio (SNR). The SNR of 3T-uTE was found to be 8 times higher than the SNR of 3T-mGRE. In addition, it was found that for patients with an iron overload less than 25 mg/g the 3T-mGRE and 3T-uTE sequences showed the same efficacy in iron detection in the liver (r = 0.99, p = 0.54). The concentration of iron in the liver in patients with extremely severe iron overload could be calculated only using 3T-uTE relaxometric maps due to the high approximation error of the results obtaining by 3T-mGRE maps. These data demonstrate the possibility of using the 3T-mGRE sequence to determine the concentration of iron in the liver below 25 mg/g. However, with extremely severe iron overload, it is better to use the 3T-uTE sequence.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитно-резонансная томография</kwd><kwd>перегрузка железом</kwd><kwd>Т2*-картирование</kwd><kwd>магнитно-резонансная релаксометрия</kwd><kwd>количественная оценка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Magnetic Resonance Imaging</kwd><kwd>Iron Overload</kwd><kwd>T2*-Mapping</kwd><kwd>Magnetic Resonance Relaxometry</kwd><kwd>Quantitative Assessment</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">Назарова Э. Э., Куприянов, Д. А., Новичкова, Г. А., Терещенко, Г. В. Неинвазивная диагностика перегрузки железом методом магнитно-резонансной</mixed-citation><mixed-citation xml:lang="en">Nazarova E. E., Kupriyanov D. A., Novichkova G. A., Tereshchenko G. V. Noninvasive assessment of iron overload by magnetic resonance imaging. 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