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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-92</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>Сопоставление информативности МР-перфузии и ПЭТ с [11С]метионином в дифференциации продолженного роста церебральных опухолей и лучевых поражений головного мозга после комбинированного лечения</article-title><trans-title-group xml:lang="en"><trans-title>Direct Comparison of Perfusion Magnetic Resonance Imaging with [11C]Methionine PET in Differentiating Brain Tumor Recurrence From Radiation-Induced Brain Injury after Combined Treatment</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>Савинцева</surname><given-names>Жанна Игоревна</given-names></name><name name-style="western" xml:lang="en"><surname>Savintseva</surname><given-names>Zhanna Igorevna</given-names></name></name-alternatives><email xlink:type="simple">jeanne.mrt@hotmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трофимова</surname><given-names>Татьяна Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Trofimova</surname><given-names>Tatiana Nikolaevna</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скворцова</surname><given-names>Татьяна Юрьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Skvortsova</surname><given-names>Tatiana Yurievna</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бродская</surname><given-names>Зоря Львовна</given-names></name><name name-style="western" xml:lang="en"><surname>Brodskaya</surname><given-names>Zorya L’vovna</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН “Институт мозга человека им. Н.П. Бехтеревой” Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.P. Bechtereva Institute of the Human Brain of Russian academy of sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>28</day><month>10</month><year>2014</year></pub-date><volume>0</volume><issue>5</issue><fpage>10</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савинцева Ж.И., Трофимова Т.Н., Скворцова Т.Ю., Бродская З.Л., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Савинцева Ж.И., Трофимова Т.Н., Скворцова Т.Ю., Бродская З.Л.</copyright-holder><copyright-holder xml:lang="en">Savintseva Z.I., Trofimova T.N., Skvortsova T.Y., Brodskaya Z.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://medvis.rdsmedia.ru/jour/article/view/92">https://medvis.rdsmedia.ru/jour/article/view/92</self-uri><abstract><p>Цель исследования: сравнительный анализ результатов Т2* МР-перфузии (пМРТ) и позитронно-эмиссионной томографии с [11С]метионином (ПЭТ-Мет) в дифференциальной диагностике продолженного роста опухоли (ПРО) и лучевого повреждения головного мозга (ЛП). Материал и методы. ПЭТ-Мет и пМРТ были выполнены 45 пациентам после комбинированного лечения церебральных опухолей. Было проанализировано 57 контрастно-позитивных очагов, для каждого из которых вычислялся индекс накопления [11С]метионина и индекс rCBV. Верификация результатов базировалась на патогистологическом исследовании (n = 20) или динамическом клинико-радиологическом наблюдении (n = 24). Для определения информативности выбранных показателей и оптимальных величин для принятия решения использован ROC-анализ. Результаты. Согласно окончательному диагнозу, пациенты были разделены на 2 группы: группа ПРО (n = 33) и группа с отсутствием ПРО (n = 24). Совпадение результатов ПЭТ и пМРТ наблюдали в 93% случаев. У 4 пациентов отмечалось расхождение результатов. В 2 случаях лучевого поражения определялось высокое накопление метионина при пониженных значения rCBV. У других 2 больных ПЭТ позволила выявить участок активной опухолевой ткани на фоне постлучевых изменений. Выводы. nМРТ и ПЭТ-Мет могут быть эффективно использованы для дифференциации ПРО и ЛП головного мозга. Сопоставление результатов показало, что ПЭТ-Мет обладает большей чувствительностью в выявлении и контурировании границ ПРО, но уступает по специфичности nМРТ</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to compare T2*-weighted MR-perfusion (pMRI) and positron emission tomography using [11C]methionine (PET-Met) in differentiating recurrent brain tumor (RT) from posttreatment radiation effect (PTRE). Material and methods. PET-Met and pMRIwere performed in 45 patients with previously treated brain tumor A total 57 lesions were analyzed. The rCBV index and [11C] methionine uptake index (UI-Met) were calculated as the ratios of the highest lesion value to the that in the reference region. The diagnostic accuracy of UI-Met and rCBV for correct identification of recurrent tumor (RT) versus PTRE was evaluated by ROC-analysis using subsequent histologic analysis or clinical and radiological follow-up. Results. According to the final diagnosis patientsexhibitedthetwo typesofabnormalities: recurrent tumor (n = 33) and non-progressive lesions (n = 24). The inter-individual agreement between the both techniques was observed in 93% of cases. In 4 patients results were discordant. High [11C]methionine uptake and low rCBV were detected in 2 cases of radiation necrosis. In 2 patients PET-Met was able to distinguish foci of radionecrosis and the viable tumor tissue. Conclusion. T2*-weighted MR-perfusion and PET-Met could be efficiently used for differentiation RT from PTRE. Inter-individual comparison of the both methods showed that PET-Met was more sensitive in imaging recurrent tumor, but perfusion MRI had higher specificity.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>МР-перфузия</kwd><kwd>ПЭТ</kwd><kwd>опухоль головного мозга</kwd><kwd>лучевой некроз</kwd><kwd>perfusion magnetic resonance imaging</kwd><kwd>PET</kwd><kwd>brain tumor</kwd><kwd>radiation necrosis</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">Скворцова Т.Ю., Бродская З.Л., Гурчин А.Ф., Савинцева Ж.И. Диагностическая точность ПЭТ с [11С]метионином в разграничении продолженного роста первичных церебральных опухолей и лучевых поражений головного мозга. Мед. виз. 2011; 6: 80-92.</mixed-citation><mixed-citation xml:lang="en">Скворцова Т.Ю., Бродская З.Л., Гурчин А.Ф., Савинцева Ж.И. 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