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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">ojrdrt</journal-id><journal-title-group><journal-title xml:lang="ru">Онкологический журнал: лучевая диагностика, лучевая терапия</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of oncology: diagnostic radiology and radiotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2587-7593</issn><issn pub-type="epub">2713-167X</issn><publisher><publisher-name>НЕКОММЕРЧЕСКОЕ ПАРТНЕРСТВО «ОБЩЕСТВО ИНТЕРВЕНЦИОННЫХ ОНКОРАДИОЛОГОВ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37174/2587-7593-2021-4-3-56-63</article-id><article-id custom-type="elpub" pub-id-type="custom">ojrdrt-194</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>ЛУЧЕВАЯ ДИАГНОСТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DIAGNOSTIC RADIOLOGY</subject></subj-group></article-categories><title-group><article-title>Дифференциальная диагностика доброкачественных и злокачественных опухолей печени у детей методом количественной МРТ с внутриклеточным контрастирующим препаратом</article-title><trans-title-group xml:lang="en"><trans-title>Differential Diagnosis of Benign and Malignant Level Tumors in Children by Quantitative MRI with Intracellular Contrast Agent</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6572-5369</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петраш</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrash</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-рентгенолог отделения рентгенодиагностического НИИ детской онкологии и гематологии, кандидат медицинских наук, </p><p>115478 Москва, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>24 Kashirskoe Highway, Moscow, 115478</p></bio><email xlink:type="simple">e.a.petrash@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/0000-0003-3813-5608</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шориков</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shorikov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-рентгенолог отделения рентгенодиагностического НИИ клинической и экспериментальной радиологии, 115478 Москва, Каширское шоссе, 24;</p><p>врач-рентгенолог отделения рентгенологии, рентгеновской компьютерной томографии и магнитно-резонансной томографии НИИ радиологии и клинической физиологии, 117997, Москва, ул Островитянова, 1, стр. 10</p></bio><bio xml:lang="en"><p>24 Kashirskoe Highway, Moscow, 115478;</p><p>1 Ostrovityanova, Moscow, 117997</p></bio><email xlink:type="simple">mshorikov@gmail.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/0000-0001-7630-7496</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhaylova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>заведующая отделением рентгенодиагностическим НИИ детской онкологии и гематологии,</p><p>115478 Москва, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>24 Kashirskoe Highway, Moscow, 115478</p></bio><email xlink:type="simple">elena_1357@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/0000-0001-9318-5785</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никулина</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikulina</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-рентгенолог отделения рентгенодиагностического НИИ детской онкологии и гематологии,</p><p>115478 Москва, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>24 Kashirskoe Highway, Moscow, 115478</p></bio><email xlink:type="simple">almich@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Blokhin National Medical Research Center of Oncology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России;&#13;
Федеральный центр мозга и нейротехнологий ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Blokhin National Medical Research Center of Oncology;&#13;
Federal Center for Brain Research and Neurotechnology</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>09</month><year>2021</year></pub-date><volume>4</volume><issue>3</issue><fpage>56</fpage><lpage>63</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петраш Е.А., Шориков М.А., Михайлова Е.В., Никулина А.Л., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Петраш Е.А., Шориков М.А., Михайлова Е.В., Никулина А.Л.</copyright-holder><copyright-holder xml:lang="en">Petrash E.A., Shorikov M.A., Mikhaylova E.V., Nikulina A.L.</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.oncoradjournal.ru/jour/article/view/194">https://www.oncoradjournal.ru/jour/article/view/194</self-uri><abstract><sec><title>Цель</title><p>Цель: Определение возможностей количественной оценки данных мультипараметрической МРТ с использованием внутриклеточного контрастного препарата в дифференциальной диагностике доброкачественных и злокачественных заболеваний печени у детей.</p></sec><sec><title>Материал и методы</title><p>Материал и методы: Обследовано 30 пациентов (17 мальчиков, 13 девочек) с 83 образованиями печени в возрасте от 6 месяцев до 20 лет. Всем пациентам проводилось исследование на МРТ-аппаратах 3 Тл или 1,5 Тл с использованием гепатотропного МР-контрастного препарата гадоксетовой кислоты с получением постконтрастных изображений в артериальную, портальную, венозную и отсроченные фазы (1, 5, 20, 40 мин). Были определены количественные характеристики изменения интенсивности сигнала в очаге поражения, интактной паренхиме печени, селезенке, почке, аорте, нижней полой вене. Для нивелирования влияния внешних факторов пользовались не абсолютными значениями интенсивности сигнала, а соотношениями: очаг/интактная паренхима печени, очаг/почка, очаг/аорта, очаг/селезенка, очаг/НПВ. Для каждого очага рассчитывалось 5 коэффициентов, кроме того, была проведена нормировка к нативной фазе. Опухоли были распределены на группы: доброкачественные (52) и злокачественные (31). Диагноз всех злокачественных новообразований подтвержден морфологически, доброкачественных — морфологически или с помощью контрастного МРТ-исследования и динамического наблюдения.</p></sec><sec><title>Результаты</title><p>Результаты: С помощью программы XLSTAT была построена математическая модель дифференциальной диагностики. Модель информативна и статистически достоверна (p &lt; 0,001). При значении А&gt;0,5 принималось решение о злокачественной природе исследуемого очага. Если А≤0,5 — образование доброкачественное. Чувствительность и специфичность диагностики при помощи модели составили 0,862 и 0,925 соответственно.</p></sec><sec><title>Выводы</title><p>Выводы: Математическая модель позволяет с высокой степенью информативности дифференцировать злокачественные и доброкачественные образования, что является приоритетной задачей при выявлении объемного образования в печени. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose: Тo determine the possibilities of quantitative assessment of mpMRI with EOB-DTPA in the differential diagnosis of benign and malignant tumors in children.</p></sec><sec><title>Material and methods</title><p>Material and methods: 30 patients (male — 17, female — 13) with 83 tumors underwent MRI. Age ranged from 5 months to 20 years. All children underwent MRI on 3T or 1.5T MR-scanners using body coil. Fat saturated T1WI were performed before and after hepatotropic MR-contrast agent (gadoxetic acid) injection in arterial, portal, venous and delayed phases (1, 5, 20, 40 min). Tumors were divided into 2 groups: benign (52) and malignant (31). In this work we use only pre- and postcontrast T1WI. Diagnosis was confirmed histologically (all malignant and a part of benign FLL) and long-term MRI follow-up studies (for benign). To eliminate influence of external factors we used coefficients for each MR-program, the signal was normalized to intact liver parenchyma, spleen, abdominal aorta and v. cava inferior, also normalization to native series has been performed. Coefficients were compared for malignant and benign tumors using Student’s t-test, significantly different parameters were further used to build mathematical model by constructing a logistic regression with step-by-step selection of the most informative values.</p></sec><sec><title>Results</title><p>Results: Regression model is presented by formula. The model is informative and statistically significant (p &lt; 0.001). If A&gt;0.5 tumors has a malignant nature if А ≤ 0.5–benign. Model sensitivity and specificity are 0.862 and 0.925, respectively.</p></sec><sec><title>Conclusion</title><p>Conclusion: Our model could be an excellent assistance in differentiation of benign and malignant focal liver lesions and reduces diagnostic path, effects the proper patients management. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>МРТ</kwd><kwd>онкология</kwd><kwd>педиатрия</kwd><kwd>печень</kwd><kwd>дифференциальная диагностика</kwd><kwd>регрессионная модель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>MRI</kwd><kwd>oncology</kwd><kwd>pediatric</kwd><kwd>liver lesions</kwd><kwd>differential diagnosis</kwd><kwd>regression model</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">Никулина АЛ, Петраш ЕА, Михайлова ЕВ и др. Комплексная лучевая диагностика недифференцированной эмбриональной саркомы печени у детей: собственный опыт и обзор литературы. 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