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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">mrj</journal-id><journal-title-group><journal-title xml:lang="ru">Современная ревматология</journal-title><trans-title-group xml:lang="en"><trans-title>Modern Rheumatology Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1996-7012</issn><issn pub-type="epub">2310-158X</issn><publisher><publisher-name>IMA-PRESS, LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/1996-7012-2025-1-12-19</article-id><article-id custom-type="elpub" pub-id-type="custom">mrj-1695</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Оценка поражения мышц по данным магнитно-резонансной томографии при дерматомиозите и спорадическом миозите с включениями</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of muscle damage using magnetic resonance imaging data in dermatomyositis and sporadic inclusion body myositis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4530-8717</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коломейчук</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolomeychuk</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алена Алексеевна Коломейчук,</p><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>Alena Alekseevna Kolomeychuk,</p><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><email xlink:type="simple">alenakolomei@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/0000-0002-3248-6426</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ананьева</surname><given-names>Л. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Ananyeva</surname><given-names>L. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-5940-7870</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Птичкина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ptichkina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4804-3689</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хелковская-Сергеева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Khelkovskaya-Sergeeva</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3071-578X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казаков</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazakov</surname><given-names>D. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>125412, Москва, ул. Талдомская, 2 </p></bio><bio xml:lang="en"><p>2, Taldomskaya Street, Moscow 125412</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт ревматологии им. В.А. Насоновой»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V.A. Nasonova Research Institute of Rheumatology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>«Научно-исследовательский клинический институт педиатрии им. акад. Ю.Е. Вельтищева» ФГБОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Clinical Institute of Pediatrics named after academician Yu.E. Veltischev, Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>02</month><year>2025</year></pub-date><volume>19</volume><issue>1</issue><fpage>12</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коломейчук А.А., Ананьева Л.П., Птичкина Л.В., Хелковская-Сергеева А.Н., Казаков Д.О., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Коломейчук А.А., Ананьева Л.П., Птичкина Л.В., Хелковская-Сергеева А.Н., Казаков Д.О.</copyright-holder><copyright-holder xml:lang="en">Kolomeychuk A.A., Ananyeva L.P., Ptichkina L.V., Khelkovskaya-Sergeeva A.N., Kazakov D.O.</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://mrj.ima-press.net/mrj/article/view/1695">https://mrj.ima-press.net/mrj/article/view/1695</self-uri><abstract><p>Идиопатические воспалительные миопатии (ИВМ) – группа редких аутоиммунных заболеваний, характеризующихся наличием мышечной слабости. ИВМ отличаются гетерогенностью проявлений и включают несколько вариантов, каждый из которых имеет особенности патогенеза и профиля аутоантител, клинической картины, прогноза и ответа на терапию.</p><p>В связи с этим возрастает значение ранней диагностики и правильной интерпретации клинических и лабораторно-инструментальных данных с целью своевременного выделения фенотипа ИВМ. К важным инструментам оценки мышечного повреждения относят магнитно-резонансную томографию (МРТ), позволяющую получить детальную анатомо-топографическую информацию о мышцах и прилежащих мягких тканях. Особенности МРТ-картины мышц при разных фенотипах ИВМ изучены недостаточно.</p><p>Цель исследования – оценка и сравнение магнитно-резонансных (МР) признаков поражения мышц у пациентов с дерматомиозитом (ДМ) и спорадическим миозитом с включениями (СМВ).</p><sec><title>Материал и методы</title><p>Материал и методы. В проспективное исследование вошло 30 пациентов с ИВМ, в том числе 15 с ДМ и 15 с СМВ. Диагноз устанавливался на основании классификационных критериев EULAR/ACR 2017 г. МРТ мышц бедер и голеней проводилась на аппарате Philips Multiva 1.5 TESLA (Philips, Нидерланды). Оценивались интенсивность отека мышечной ткани и жировой перестройки по 4-балльной шкале, общий счет и суммарный счет по группам мышц согласно анатомо-топографическому строению.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. При ДМ общий счет отека был статистически значимо выше, чем при СМВ (р&lt;0,001). Напротив, общий счет жировой перестройки был значимо выше при СМВ, чем при ДМ, как и суммарный счет всех групп мышц бедер: передней (р&gt;&lt;0,001), задней (р=0,03) и медиальной (р=0,02). В отличие от ДМ, у всех пациентов с СМВ встречались еще два МР-признака: «дистальный градиент» и симптом «ундулирующей мембраны». Между сравниваемыми вариантами ИВМ не выявлено статистически значимых различий при оценке общего и суммарного счета отека мышц голеней. В то же время при изучении жировой перестройки при СМВ общий счет и суммарный счет в передней, задней и латеральной группах мышц были значимо выше, чем при ДМ. Таким образом, ведущим МР-признаком при ДМ являлся отек преимущественно переднемедиальной и задней групп мышц бедер (за счет полусухожильной и полуперепончатой мышц) и переднезадней группы мышц голеней. При СМВ преобладала жировая перестройка преимущественно в передней группе мышц бедер, а также в переднелатеральной и задней группах мышц голеней. Заключение. Продемонстрированы МР-особенности двух клинически различающихся вариантов ИВМ – ДМ и СМВ, – отражающие гетерогенность данной группы заболеваний. МРТ может быть информативным методом для выделения МР-паттернов внутри группы ИВМ. &gt; &lt; 0,001). Напротив, общий счет жировой перестройки был значимо выше при СМВ, чем при ДМ, как и суммарный счет всех групп мышц бедер: передней (р  0,001), задней (р=0,03) и медиальной (р=0,02). В отличие от ДМ, у всех пациентов с СМВ встречались еще два МР-признака: «дистальный градиент» и симптом «ундулирующей мембраны». Между сравниваемыми вариантами ИВМ не выявлено статистически значимых различий при оценке общего и суммарного счета отека мышц голеней. В то же время при изучении жировой перестройки при СМВ общий счет и суммарный счет в передней, задней и латеральной группах мышц были значимо выше, чем при ДМ. Таким образом, ведущим МР-признаком при ДМ являлся отек преимущественно переднемедиальной и задней групп мышц бедер (за счет полусухожильной и полуперепончатой мышц) и переднезадней группы мышц голеней. При СМВ преобладала жировая перестройка преимущественно в передней группе мышц бедер, а также в переднелатеральной и задней группах мышц голеней.</p></sec><sec><title>Заключение</title><p>Заключение. Продемонстрированы МР-особенности двух клинически различающихся вариантов ИВМ – ДМ и СМВ, – отражающие гетерогенность данной группы заболеваний. МРТ может быть информативным методом для выделения МР-паттернов внутри группы ИВМ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title> </title><p> </p><p>Idiopathic inflammatory myopathies (IIM) are a group of rare autoimmune diseases characterized by muscle weakness. IIMs are characterized by heterogeneity of manifestations and include several variants, each of which has peculiarities related to pathogenesis and autoantibody profile, clinical presentation, prognosis and response to therapy. In this context, the importance of early diagnosis and correct interpretation of clinical, laboratory and instrumental data is becoming increasingly important in order to recognize the phenotype of IIM in time.</p><p>An important tool for the assessment of muscle damage is magnetic resonance imaging (MRI), which provides detailed anatomical and topographical information about muscles and adjacent soft tissues. The characteristics of the MRI of the muscles in different IIM phenotypes have not been sufficiently investigated.</p></sec><sec><title>Objective</title><p>Objective: to evaluate and compare magnetic resonance (MR) signs of muscle damage in patients with dermatomyositis (DM) and sporadic inclusion body myositis (SIBM).</p></sec><sec><title>Material and methods</title><p>Material and methods. The prospective study included 30 patients with IIM, including 15 with DM and 15 with SIBM. The diagnosis was based on the 2017 EULAR/ACR classification criteria. MRI of the thigh and calf muscles was performed using a Philips Multiva 1.5 TESLA (Philips, the Netherlands), and the intensity of muscle tissue edema and fatty replacement were assessed using a 4-point scale, as well as the total score and aggregated score by muscle groups according to the topographic and anatomical structure.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. The total edema score was statistically significantly higher in DM than in SIBM (p&lt;0.001). In contrast, the total fatty replacement score and the aggregated score of all thigh muscle groups (anterior, p&gt;&lt;0.001; posterior, p=0.03; medial, p=0.02) were significantly higher in SIBM than in DM. In contrast to DM, all patients with SIBM had two additional MR signs: "distal gradient" and the "undulating fascia" symptom. No statistically significant differences were found between the compared IIM variants in the assessment of the total and aggregated edema score of calf muscle. At the same time, when assessing fatty replacement, the total and aggregated score in the anterior, posterior and lateral muscle groups were significantly higher in SIBM than in DM. Thus, the leading MR sign in DM was edema mainly in the anteromedial and posterior muscle groups of the thighs (due to the semitendinosus and semimembranosus muscles) and the anteroposterior calf muscle group. In SIBM, fatty replacement predominates in the anterior muscle group of the thighs and in the anterolateral and posterior calf muscle groups. Conclusion. The MR features of two clinically distinct variants of IIM, DM and SIBM are demonstrated, which reflect the heterogeneity of this disease group. MRI may be an informative method to identify MR patterns within the IIM group. Keywords: magnetic resonance imaging; diagnostics; inflammatory myopathies&gt; &lt; 0.001). In contrast, the total fatty replacement score and the aggregated score of all thigh muscle groups (anterior, p &lt; 0.001; posterior, p=0.03; medial, p=0.02) were significantly higher in SIBM than in DM. In contrast to DM, all patients with SIBM had two additional MR signs: "distal gradient" and the "undulating fascia" symptom. No statistically significant differences were found between the compared IIM variants in the assessment of the total and aggregated edema score of calf muscle. At the same time, when assessing fatty replacement, the total and aggregated score in the anterior, posterior and lateral muscle groups were significantly higher in SIBM than in DM. Thus, the leading MR sign in DM was edema mainly in the anteromedial and posterior muscle groups of the thighs (due to the semitendinosus and semimembranosus muscles) and the anteroposterior calf muscle group. In SIBM, fatty replacement predominates in the anterior muscle group of the thighs and in the anterolateral and posterior calf muscle groups.</p></sec><sec><title>Conclusion</title><p>Conclusion. The MR features of two clinically distinct variants of IIM, DM and SIBM are demonstrated, which reflect the heterogeneity of this disease group. MRI may be an informative method to identify MR patterns within the IIM group.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитно-резонансная томография</kwd><kwd>диагностика</kwd><kwd>воспалительные миопатии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetic resonance imaging</kwd><kwd>diagnostics</kwd><kwd>inflammatory myopathies</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">Dourado E, Bottazzi F, Cardelli C, et al. Idiopathic inflammatory myopathies: one year in review 2022. Clin Exp Rheumatol. 2023 Mar; 41(2):199-213. doi: 10.55563/clinexprheumatol/jof6qn.</mixed-citation><mixed-citation xml:lang="en">Dourado E, Bottazzi F, Cardelli C, et al. Idiopathic inflammatory myopathies: one year in review 2022. 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