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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">medvis</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская визуализация</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Visualization</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-0763</issn><issn pub-type="epub">2408-9516</issn><publisher><publisher-name>RDS-Media Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">medvis-355</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>ГОЛОВА И ШЕЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HEAD AND NECK</subject></subj-group></article-categories><title-group><article-title>Оценка активности демиелинизации у пациентов с рассеянным склерозом методом переноса намагниченности</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of Demyelination Procesactivity in Patients with Multiple Sclerosis by Magnetization Transfer</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ермакова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ermakova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>интерн кафедры лучевой диагностики и лучевой терапии СибГМУ, Томск</p></bio><bio xml:lang="en"><p>intern of the department of radiation diagnosis and radiation therapy of Siberian State Medical University, Tomsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бородин</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodin</surname><given-names>O. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, заведующий отделением лучевой диагностики Томского областного онкологического диспансера, старший научный сотрудник отделения РиТМД НИИ кардиологии Томского национального исследовательского медицинского центра РАН; ассистент кафедры биофизики и функциональной диагностики СибГМУ, Томск</p><p>634063, Россия, Томск, ул. И. Черных, 96, стр.16. Отделение лучевой диагностики Томского областного онкологического диспансера. Тел.: 8-3822-90-95-20</p></bio><bio xml:lang="en"><p>cand. of med., sci., head of radiology department of Tomsk Regional Oncology Center; Senior Fellow of radiology department of Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences; assistant professor of biophysics and functional diagnostics department of Siberian State Medical University, Tomsk</p><p>634063, Russia, Tomsk, I. Chernih str., bld. 96, corp.16. Tomsk regional oncology centerю Phone: +7-3822-90-95-20</p></bio><email xlink:type="simple">oyborodin@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колотушкина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolotushkina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-рентгенолог отделения лучевой диагностики Томского областного онкологического диспансера, Томск</p></bio><bio xml:lang="en"><p>radiologist of radiology department of Tomsk Regional Oncology Center, Tomsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Титова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Titova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, доцент кафедры неврологии и нейрохирургии СибГМУ, Томск</p></bio><bio xml:lang="en"><p>cand. of med., sci., associate professor of neurology and neurosurgery department of Siberian State Medical University, Tomsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мусина</surname><given-names>Н. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Musina</surname><given-names>N. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, доцент кафедры неврологии и нейрохирургии СибГМУ; Томск</p></bio><bio xml:lang="en"><p>cand. of med., sci., associate professor of neurology and neurosurgery department of Siberian State Medical University, Tomsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Санников</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Sannikov</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-рентгенолог отделения лучевой диагностики Томского областного онкологического диспансера, Томск</p></bio><bio xml:lang="en"><p>radiologist of radiology department of Tomsk Regional Oncology Center, Tomsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Усов</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Ussov</surname><given-names>V. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор мед. наук, профессор, научный руководитель отделения РиТМД НИИ кардиологии Томского национального исследовательского медицинского центра РАН</p></bio><bio xml:lang="en"><p>doct. of med. sci., professor, head of radiology department of Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алифирова</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Alifirova</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор мед. наук, профессор, заведующая кафедрой неврологии и нейрохирургии СибГМУ, Томск</p></bio><bio xml:lang="en"><p>doct. of med. sci., professor, head of neurology and neurosurgery department of Siberian State Medical University, Tomsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО “Сибирский государственный медицинский университет” Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО “Сибирский государственный медицинский университет” Минздрава России&#13;
&#13;
ОГАУЗ “Томский областной онкологический диспансер”&#13;
&#13;
Научно-исследовательский институт кардиологии Томского национального исследовательского медицинского центра Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University&#13;
&#13;
Tomsk Regional Oncology Center&#13;
&#13;
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ОГАУЗ “Томский областной онкологический диспансер”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk Regional Oncology Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии Томского национального исследовательского медицинского центра Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>12</month><year>2016</year></pub-date><volume>0</volume><issue>6</issue><fpage>5</fpage><lpage>14</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ермакова А.А., Бородин О.Ю., Колотушкина А.А., Титова М.А., Мусина Н.Ф., Санников М.Ю., Усов В.Ю., Алифирова В.М., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Ермакова А.А., Бородин О.Ю., Колотушкина А.А., Титова М.А., Мусина Н.Ф., Санников М.Ю., Усов В.Ю., Алифирова В.М.</copyright-holder><copyright-holder xml:lang="en">Ermakova A.A., Borodin O.Y., Kolotushkina A.A., Titova M.A., Musina N.F., Sannikov M.Y., Ussov V.Y., Alifirova V.M.</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://medvis.rdsmedia.ru/jour/article/view/355">https://medvis.rdsmedia.ru/jour/article/view/355</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: оценка активности процесса демиелинизации у пациентов с рассеянным склерозом с использованием эффекта переноса намагниченности.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Для клинической апробации была сформирована группа пациентов из 10 человек  в возрасте от 19 до 48 лет с подтвержденным диагнозом рассеянного склероза. В качестве материала для фантомных исследований использовали контраст- и жиросодержащие вещества, сканированные со смещением резонансной частоты. МРТ-исследование проводили на высокопольном магнитно-резонансном томографе с индукцией магнитного поля 1,5 Тл. Для получения Т1-взвешенных изображений в фантомном эксперименте использовалась импульсная последовательность спин-эхо с параметрами: TR = 650 мс, TE = 20 мс, FOV = 14 см, MX = 96 × 256, STh = 4,7 мм с наложением одного импульса переноса намагниченности (МТС = 1). Для количественной оценки эффекта переноса намагниченности использовали коэффициент переноса намагниченности (MTR). При клиническом исследовании использовали импульсную последовательность спин-эхо с параметрами: TR = 621 мс, TE = 17 мс, FOV = 23,4 см, MX = 208 × 320, STh = 5,0 мм. Эту же импульсную последовательность, но с наложением импульса переноса намагниченности (MTC = 1), использовали после введения контрастного вещества. Для оценки контрастирующего эффекта рассчитывали коэффициент контраста.</p></sec><sec><title>Результаты</title><p>Результаты. Наибольшее значение MTR при фантомном исследовании получено при сочетании смещения частоты (Δf) и угла поворота (FA(MT)): Δf = −210 Гц и FA(MT) = 600° соответственно. Клиническая апробация данной комбинации показала статистически значимое повышение коэффициента контраста (p &lt; 0,05) между очагами демиелинизации и белым веществом головного мозга в сравнении с последовательностью без эффекта переноса намагниченности. Кроме того, выявлено значимое различие коэффициентов MTR между интактным белым веществом и очагом демиелинизации (p &lt; 0,05). Чувствительность Т1-взвешенной последовательности с эффектом переноса намагниченности значимо выше (р &lt; 0,001) показателей чувствительности Т1-взвешенной последовательности без эффекта переноса намагниченности.</p></sec><sec><title>Выводы</title><p>Выводы. Показано улучшение визуализации активных очагов демиелинизации у пациентов с рассеянным склерозом при использовании Т1-взвешенной последовательности с эффектом переноса намагниченности с параметрами: Δf = −210 Гц, FA(MT) = 600° за счет высоких значений коэффициента контраста в сравнении с T1-взвешенной последовательностью на основе спинэхо (р &lt; 0,05) и значимого снижения коэффициента MTR в очаге демиелинизации (p &lt; 0,05).</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose: to study the activity of demyelination process in patients with multiple sclerosis using magnetization transfer effect.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Рatients group of 10 people aged from 19 to 48 years old with a confirmed diagnosis of multiple sclerosis was formed for clinical testing. Contrastcontaining and fat-containing substances scanned with offset frequency used as the material for the phantom studies. MRI investigation was performed on high field magnetic resonance tomograph with 1.5 Tesla magnetic field. To obtain T1-weighted images in the phantom experiment the Spin-Echo pulse sequence with parameters: TR = 650 ms, TE = 20 ms, FOV = 14 cm, MX = 96 × 256, STh = 4.7 mm with the imposition of a single pulse of magnetization transfer (MTS = 1) was used. Magnetization transfer ratio (MTR) was used to quantify the magnetization transfer effect. The Spin-Echo pulse sequence with the following parameters: TR = 621 ms, TE = 17 ms, FOV = 23.4 cm, MX = 208 × 320, STh = 5.0 mm was used in the clinical trial.After the administration of contrast medium the same pulse sequence with applying magnetization transfer pulse (MTC = 1) was used. Contrast ratio was calculated for evaluating the contrasting effect.</p></sec><sec><title>Results</title><p>Results. The greatest MTR value was obtained when the phantom study with a combination of frequency offset (Δf) and flip angle (FA(MT)): Δf = −210 Hz and FA(MT) = 600° respectively. Clinical approbation of this combination showed a statistically significant increase in contrast ratio (p &lt; 0.05) between the demyelination foci and white brain matter in comparison with the sequence without magnetization transfer effect. In addition significant differences in MTR coefficients revealed between the intact white matter and demyelination foci (p &lt; 0.05). The sensitivity of T1-weighted sequence with the magnetization transfer effect in identification of active foci of demyelination was significantly higher (p &lt; 0.001) than that sensitivity of T1-weighted sequences without the magnetization transfer effect.</p></sec><sec><title>Conclusion</title><p>Conclusion. The improved visualization of active foci of demyelination in patients with multiple sclerosis using a sequence with magnetization transfer effect with the following parameters: Δf = −210 Hz, FA(MT) = 600° due to the high values of contrast ratio compared with T1-Spin-Echo (p &lt; 0.05) was shown and significant reduction in MTR coefficient in demyelination foci (p &lt; 0.05).</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>перенос намагниченности</kwd><kwd>МРТ</kwd><kwd>рассеянный склероз</kwd><kwd>демиелинизация</kwd><kwd>контрастность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetization transfer</kwd><kwd>MRI</kwd><kwd>multiple sclerosis</kwd><kwd>demyelination</kwd><kwd>contrast</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">Rovaris M., Viti B., Ciboddo G. et al. 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