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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">711</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2023-22-3-80-86</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Quantitative bone marrow magnetic resonance imaging in children with lymphoblastic leukaemia</article-title><trans-title-group xml:lang="ru"><trans-title>Количественная магнитнорезонансная томография костного мозга у пациентов с острым лимфобластным лейкозом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7317-7104</contrib-id><name-alternatives><name xml:lang="en"><surname>Tereshchenko</surname><given-names>G. V.</given-names></name><name xml:lang="ru"><surname>Терещенко</surname><given-names>Г. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4164-004X</contrib-id><name-alternatives><name xml:lang="en"><surname>Kriventsova</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Кривенцова</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Natalia A. Kriventsova - a radiologist and a research technician at the Department of Diagnostic Radiology.</p><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>Кривенцова Наталия Алексеевна - врач-рентгенолог, лаборант-исследователь отдела лучевой диагностики.</p><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>nataliya.krivencova@fccho-moscow.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5662-896X</contrib-id><name-alternatives><name xml:lang="en"><surname>Kupriyanov</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Куприянов</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Abu Jabal</surname><given-names>M. I.</given-names></name><name xml:lang="ru"><surname>Абу Джабал</surname><given-names>М. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-8093-3221</contrib-id><name-alternatives><name xml:lang="en"><surname>Kopaneva</surname><given-names>A. D.</given-names></name><name xml:lang="ru"><surname>Копанева</surname><given-names>А. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4779-1896</contrib-id><name-alternatives><name xml:lang="en"><surname>Myakova</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Мякова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7461-0050</contrib-id><name-alternatives><name xml:lang="en"><surname>Litvinov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Литвинов</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Karachunskiy</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Карачунский</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2322-5734</contrib-id><name-alternatives><name xml:lang="en"><surname>Novichkova</surname><given-names>G. A.</given-names></name><name xml:lang="ru"><surname>Новичкова</surname><given-names>Г. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">The Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of the Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-10-03" publication-format="electronic"><day>03</day><month>10</month><year>2023</year></pub-date><volume>22</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>80</fpage><lpage>86</lpage><history><date date-type="received" iso-8601-date="2023-03-31"><day>31</day><month>03</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-04-10"><day>10</day><month>04</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hemoncim.com/jour/article/view/711">https://hemoncim.com/jour/article/view/711</self-uri><abstract xml:lang="en"><p>The aim of the study was to evaluate fat fraction (FF) changes in patients diagnosed with acute lymphoblastic leukaemia (ALL) in comparison with children without haematological disorders. All the patients or their legal representatives gave their informed consent to magnetic resonance imaging (MRI). The study was approved by the Independent Ethics Committee and the Scientific Council of the Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology and was conducted in line with the Ethical Principles of the World Health Organization (the Declaration of Helsinki) for Medical Research Involving Human Subjects. The study included 33 healthy volunteers aged 13.4 ± 2.8 years (the control group) and 34 patients with acute phase ALL whose mean age was 12.2 ± 3.6 years (the group of interest). Imaging of the pelvic bones and lumbar vertebrae was performed on a Philips Achieva 3T scanner using the mDixon-quant sequence, with a subsequent construction of FF maps. The Mann–Whitney U-test was used to compare the FF data of the cases with each other and with the controls. Four regions of interest were selected, 100 mm2 each: in the bodies of the right and the left iliac bones as well as in the bodies of the L4 and L5 vertebras. For each group of subjects and each region of interest, mean FF was calculated. In the group of the patients with acute phase ALL, FF was the lowest: 3.53 ± 2.75% and 3,72 ± 3.09% in the bodies of the left and right iliac bones respectively, and 2.62 ± 1.86% and 2.47 ± 2.17% in the L4 and L5 vertebras respectively. In the control group, FF in the respective regions of interest was 51.3 ± 9.5%; 49.9 ± 11.0%; 31.3 ± 8.73% and 32.4 ± 10.3%. It is obvious that bone marrow FF in the patients with ALL differs significantly from the control group. Quantitative MRI can become a new method for the assessment of changes in the bone marrow of children with leukaemias.</p></abstract><trans-abstract xml:lang="ru"><p>Цель исследования – оценить изменение показателей фракции жира (ФЖ) у пациентов с установленным диагнозом острого лимфобластного лейкоза (ОЛЛ) по сравнению с детьми без гематологических заболеваний. При проведении исследования было получено информированное согласие на выполнение магнитно-резонансной томографии (МРТ) от каждого пациента или его законного представителя. Исследование одобрено независимым этическим комитетом, утверждено решением ученого совета НМИЦ ДГОИ им. Дмитрия Рогачева и соответствует Этическому кодексу Всемирной медицинской ассоциации (Хельсинкская декларация) для исследований с участием людей. В исследование вошли 33 здоровых добровольца в возрасте 13,4 ± 2,8 года (группа контроля) и 34 пациента с диагнозом ОЛЛ в острую фазу заболевания, средний возраст которых составил 12,2 ± 3,6 года (основная группа). ФЖ рассчитывалась на основании последовательности mDixon-Quant в области костей таза и поясничных позвонков при помощи построения карт на магнитно-резонансном томографе Philips Achieva 3T. Для сравнения данных ФЖ пациентов с группой контроля и между собой применялся U-критерий Манна–Уитни. Были выбраны 4 региона интереса размером 100 мм2: в телах правой и левой подвздошных костей, а также в телах позвонков L4 и L5. Для каждой группы и региона интереса было рассчитано среднее значение ФЖ. В группе пациентов в острый период ОЛЛ показатели были самые низкие: в телах подвздошных костей 3,53 ± 2,75% и 3,72 ± 3,09% слева и справа соответственно и в телах позвонков L4 и L5 2,62 ± 1,86% и 2,47 ± 2,17% соответственно. В контрольной группе показатели по тем же точкам составили 51,3 ± 9,5%; 49,9 ± 11,0%; 31,3 ± 8,73% и 32,4 ± 10,3% соответственно. ФЖ в костном мозге существенно изменяется у пациентов с ОЛЛ по отношению к контрольной группе. Количественный анализ МРТ-изображений может стать новым методом оценки состояния костного мозга у детей с лейкемиями.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pediatrics</kwd><kwd>oncohematology</kwd><kwd>radiology</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>педиатрия</kwd><kwd>онкогематология</kwd><kwd>лучевая диагностика</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья финансировалась в рамках гранта Российского научного фонда №22-25-00553 «Новые МРТ-технологии в исследовании тканевых характеристик костного мозга при апластической анемии: возможности контроля эффективности терапии и сравнение с результатами гистопатоморфологии»</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Foster, K.; Chapman, S.; Johnson, K. MRI of the marrow in the paediatric skeleton. 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