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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">kpccz</journal-id><journal-title-group><journal-title xml:lang="ru">Комплексные проблемы сердечно-сосудистых заболеваний</journal-title><trans-title-group xml:lang="en"><trans-title>Complex Issues of Cardiovascular Diseases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2306-1278</issn><issn pub-type="epub">2587-9537</issn><publisher><publisher-name>Federal State Budgetary Institution “Research Institute for Complex Issues of Cardiovascular Diseases”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17802/2306-1278-2020-9-3-21-29</article-id><article-id custom-type="elpub" pub-id-type="custom">kpccz-754</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 STUDIES</subject></subj-group></article-categories><title-group><article-title>МР-методика Т2-картирования в оценке степени активности процесса при воспалительных миопатиях</article-title><trans-title-group xml:lang="en"><trans-title>Experience of application of T2-mapping MRI assessment of inflammatory myopathies</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8880-100X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богомякова</surname><given-names>О. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogomyakova</surname><given-names>O. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, научный сотрудник лаборатории МРТ технологии,</p><p>ул. Институтская 3а, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>MD, Ph.D., researcher at the Laboratory of MRI technologies, </p><p>Institutskaya St. 3a, Novosibirsk, 630090</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/0000-0003-3654-5531</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тавлуй</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tavluy</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студентка 5-го курса Института медицины и психологии В. Зельмана,</p><p>ул. Пирогова, 1, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>a 5-year student at the Institute of Medicine and Psychology, </p><p>Pirogova St. 1, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5332-2607</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>кандидат физико-математических наук, старший научный сотрудник лаборатории МРТ технологии,</p><p>ул. Институтская 3а, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>Ph.D, senior researcher at the Laboratory of MRI technologies,</p><p>Institutskaya St. 3a, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></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</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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Новосибирский национальный исследовательский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>27</day><month>09</month><year>2020</year></pub-date><volume>9</volume><issue>3</issue><fpage>21</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Богомякова О.Б., Тавлуй М.А., Савелов А.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Богомякова О.Б., Тавлуй М.А., Савелов А.А.</copyright-holder><copyright-holder xml:lang="en">Bogomyakova O.B., Tavluy M.A., Savelov A.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.nii-kpssz.com/jour/article/view/754">https://www.nii-kpssz.com/jour/article/view/754</self-uri><abstract><p>Специализированные количественные МР-методики помогают выявить структурные изменения в отдельных мышцах при воспалительных миопатиях.</p><sec><title>Цель</title><p>Цель. Изучить возможности МР-методики Т2-картирования и оценить изменение времени Т2-релаксации у пациентов с воспалительными миопатиями в разной стадии активности.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. На МР-томографе Ingenia 3.0Т (Philips, США) оптимизирована методика Т2-картирования для оценки структурных изменений мышечной ткани. Оценено время Т2-релаксации мышц бедра и голени (прямая и латеральная широкая, большая приводящая мышцы бедра, камбаловидная и икроножная мышцы, передняя большеберцовая мышца) в группе контроля (9 человек) и исследуемой группе пациентов с дермато- и полимиозитом в разной фазе активности процесса (6 человек).</p></sec><sec><title>Результаты</title><p>Результаты. В группе контроля получены следующие значения времени Т2-релаксации: прямая мышца бедра – 78,2 (74,4; 86,9) мс, широкая латеральная мышца бедра – 79,5 (78,4; 82,4) мс, большая приводящая мышца – 77,1 (76,1; 79,4) мс, камбаловидная мышца – 92,9 (90,5; 93,4) мс, передняя большеберцовая мышца – 89,4 (88,8; 89,6) мс; икроножная мышца: медиальная головка – 93,7 (93,1; 94,8) мс, латеральная головка – 92,9 (91,6; 94,4) мс. У пациенток с полии дерматомиозитом в активной фазе выявлено повышение интенсивности сигнала на STIR и PD-SPAIR в структуре прямой мышцы бедра, камбаловидной и икроножной мышц, а также увеличение времени Т2-релаксации на 40–49% (p&lt;0,01). У пациенток с полимиозитом в стадии медикаментозного лечения и клинической ремиссии значимого изменения времени Т2-релаксации не обнаружено. У пациенток с дерматомиозитом в стадии лабораторной ремиссии, но клинического ухудшения отмечено увеличение времени Т2-релаксации в структуре длинных мышц спины, прямой и широкой латеральной мышц бедра на 15–25% (p&lt;0,05). При этом статистически значимого изменения сигнальных характеристик на STIR и PD-SPAIR не выявлено.</p></sec><sec><title>Заключение</title><p>Заключение. Показана чувствительность методики в выявлении подострого отека мышечной ткани при отсутствии значимых изменений сигнальных характеристик на рутинных МР-последовательностях.</p></sec></abstract><trans-abstract xml:lang="en"><p>Specialized quantitative MRI techniques allow identifying structural changes in individual muscles in inflammatory myopathies.</p><sec><title>Aim</title><p>Aim. To evaluate the role of T2 mapping MRI and to evaluate specific changes in T2 relaxation time in patients with inflammatory myopathies at different stages of the disease process.</p></sec><sec><title>Methods</title><p>Methods. T2 mapping technique for assessing structural changes in muscle tissues was optimized for the Philips “Ingenia” 3.0T MR scanner. T2 relaxation (T2rt) time of the thigh and lower leg muscles (muscule rectus femoris, m. vastus lateralis, m. adductor magnus, m. soleus, m. tibialis anterior, medial and lateral head of m. gastrocnemius) was assessed in the control group (n = 9) and the study group (n = 6). Patients recruited in the study group suffered from dermatomyositis and polymyositis of various severity.</p></sec><sec><title>Results</title><p>Results. The following values of T2rt were obtained in the control group: m.rectus femoris – 78.2±6.9 ms, m.vastus lateralis – 79.5±4.8 ms, m.adductor magnus – 77.1±4.4 ms, m. soleus – 92.9±4.3 ms, m. tibialis anterior – 89.4±1.3 ms, m.gastrocnemius medial head – 93.7±2.4 ms, m.gastrocnemius lateral head – 92.9±3.5 ms. Patients with polymyositis and dermatomyositis showed an increase in the signal intensity on STIR and PD-SPAIR in the structure of m.soleus, m. gastrocmenius, m.rectus femoris, as well as a significant increase in T2rt of 40–49% (p&lt;0.01). T2rt values did not differ in patients with polymyositis who received drug therapy and had clinical remission. Patients with dermatomyositis who had laboratory remission along with the deterioration reported an increase in T2rt in the structure of long spine muscles, m. rectus femoris and m. vastus lateralis equal to 15–25% (p&lt;0.05). However, none significant changes in the signal characteristics on STIR and PDSPAIR were reported.</p></sec><sec><title>Conclusion</title><p>Conclusion. The sensitivity of the reported technique in the detection of sub-acute swelling of muscle tissue in the absence of significant changes in signal characteristics on routine MR sequences had been shown. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитно-резонансная томография</kwd><kwd>полимиозит</kwd><kwd>дерматомиозит</kwd><kwd>Т2- релаксометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetic-resonance imaging</kwd><kwd>polymyositis</kwd><kwd>dermatomyositis</kwd><kwd>T2-relaxometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Мы благодарим Министерство науки и высшего образования РФ за доступ к МРТ-оборудованию.</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">Maillard S.M., Jones R., Owens C., Pilkington C., Woo P., Wedderburn L.R., Murray K.J. 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