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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 pub-id-type="doi">10.24835/1607-0763-2018-1-17-25</article-id><article-id custom-type="elpub" pub-id-type="custom">medvis-503</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 ЭФФЕКТИВНОСТИ МЕТОДА ОТСРОЧЕННОГО КОНТРАСТИРОВАНИЯ КАК ИНСТРУМЕНТА ДИФФЕРЕНЦИАЛЬНОЙ МР-ДИАГНОСТИКИ МЕТАСТАТИЧЕСКИХ ПОРАЖЕНИЙ И ТОКСОПЛАЗМОЗА</article-title><trans-title-group xml:lang="en"><trans-title>THE EVALUATION OF DELAYED ENHANCEMENT METHOD AS A TOOL FOR MAGNETIC RESONANCE DIFFERENTIATION BETWEEN THE METASTASES AND NEUROTOXOPLASMOSIS</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>Симещенко</surname><given-names>П. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Simeshchenko</surname><given-names>P. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Симещенко Павел Игоревич – старший лаборант кафедры онкологии медицинского факультета</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дроздов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Drozdov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дроздов Александр Андреевич – аспирант медицинского факультета Санкт-Петербургского государственного университета; врачрентгенолог.</p><p>191014, Санкт-Петербург, Литейный пр., д. 56, +7-911-935-37-57</p></bio><bio xml:lang="en"><p>Aleksandr A. Drozdov – Ph.D. student SPSU, Faculty of Medicine; radiologist of «Mariinsky hospital».</p><p>191014, Saint-Petersburg, Liteyniy Pr., 56, +79119353757</p></bio><email xlink:type="simple">a_a_drozdov@mail.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>Черемисин</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Cheremisin</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черемисин Владимир Максимович – доктор медицинских наук, профессор медицинского факультета СПГУ</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Камышанская</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamishanskaya</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Камышанская Ирина Григорьевна – кандидат медицинских наук, доцент кафедры онкологии медицинского факультета СПГУ</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яковлев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovlev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яковлев Алексей Авенирович – доктор медицинских наук, профессор, заведующий кафедрой инфекционных болезней, эпидемиологии и дерматовенерологии медицинского факультета СПГУ</p></bio><bio xml:lang="en"><p>Aleksey A. Yakovlev – university professor of Department of Infectious Diseases, Epidemiology and Dermatovenerology SPSU, Faculty of Medicine; Medical Director of S.P. Botkin CIDH</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мусатов</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Musatov</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мусатов Владимир Борисович – кандидат медицинских наук, доцент кафедры инфекционных болезней, эпидемиологии и дерматовенерологии медицинского факультета СПГУ; заместитель главного врача больницы им. С.П. Боткина по медицинской части</p></bio><bio xml:lang="en"><p>Vladimir B. Musatov – cand. of med. sci., professor assistant at Department of Infectious Diseases, Epidemiology and Dermatovenerology SPSU, Faculty of Medicine; Deputy Medical Director at S.P. Botkin CIDH</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федуняк</surname><given-names>И. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedunyak</surname><given-names>I. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федуняк Иван Павлович – кандидат медицинских наук, доцент кафедры инфекционных болезней СЗГМУ им. И.И. Мечникова; заместитель главного врача больницы им. С.П. Боткина по медицинской части.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ivan P. Fedunyak – cand. of med. sci., professor assistant at Department of Infectious Diseases at I.I. Mechnikov North-Western State Medical University; Deputy Medical Director at S.P. Botkin CIDH</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>Данилов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данилов Всеволод Вячеславович – студент медицинского факультета СПГУ</p></bio><bio xml:lang="en"><p>Vsevolod V. Danilov – student SPSU, Faculty of Medicine</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВПО “Санкт-Петербургский государственный университет”; СПб ГБУЗ “Городская Мариинская больница”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State University; Saint-Petersburg Mariinsky Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВПО “Санкт-Петербургский государственный университет”; СПб ГБУЗ Городская клиническая инфекционная больница №30 им. С.П. Боткина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State University; S.P. Botkin Clinical Infectious Disease Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>СПб ГБУЗ Городская клиническая инфекционная больница №30 им. С.П. Боткина; ФГБОУ ВПО Северо-Западный государственный медицинский университет им. И.И. Мечникова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>S.P. Botkin Clinical Infectious Disease Hospital; I.I. Mechnikov North-Western State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБОУ ВПО Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>28</day><month>02</month><year>2018</year></pub-date><volume>0</volume><issue>1</issue><fpage>17</fpage><lpage>25</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Симещенко П.И., Дроздов А.А., Черемисин В.М., Камышанская И.Г., Яковлев А.А., Мусатов В.Б., Федуняк И.П., Данилов В.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Симещенко П.И., Дроздов А.А., Черемисин В.М., Камышанская И.Г., Яковлев А.А., Мусатов В.Б., Федуняк И.П., Данилов В.В.</copyright-holder><copyright-holder xml:lang="en">Simeshchenko P.I., Drozdov A.A., Cheremisin V.M., Kamishanskaya I.G., Yakovlev A.A., Musatov V.B., Fedunyak I.P., Danilov V.V.</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/503">https://medvis.rdsmedia.ru/jour/article/view/503</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: сравнительный анализ использования метода отсроченного контрастирования как инструмента для дифференциальной диагностики между метастатическим поражением и токсоплазмозом.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Для проведения исследования были отобраны 38 пациентов с метастатическим поражением головного мозга или токсоплазмозом, у которых по данным СКТ или МРТ были выявлены множественные поражения головного мозга c массэффектом и кольцевидным типом накопления контрастного вещества. Каждому была проведена МРТ с введением контрастного вещества и были получены постконтрастные Т1ВИ сразу после контрастирования, через 15, 30 и 45 мин. Проводилась качественная оценка накопления контрастного вещества в центральной части в отсроченном периоде. Всего было проанализировано 153 очага, из которых 64 очага токсоплазмоза и 89 метастатического характера.</p></sec><sec><title>Результаты</title><p>Результаты. Из 153 очагов признак накопления конт растного вещества в центральной части в отсроченном периоде был выявлен в 83 случаях. При этом из 89 метастатических поражений центральное накопление отмечено в 81 случае, а из 64 очагов нейротоксоплазмоза – в 2 случаях. Чувствительность данного признака составила 88%, специфичность – 95%.</p></sec><sec><title>Заключение</title><p>Заключение. Накопление контрастного вещества по данным отсроченных изображений значительно повышает вероятность метастатической природы поражений (специфичность 95%) и потому этот признак может быть эффективно использован для дифференциальной диагностики между метастатическим поражением и нейротоксоплазмозом.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of this study was to evaluate delayed enhancement as the tool for differentiation between metastatic brain lesions and neurotoxoplasmosis.</p><sec><title>Materials and methods</title><p>Materials and methods. 38 patients with multiple brain lesions with mass-effect and ring-type of contrast enhancement based on CT/MRI have been enrolled in the study. All cases were associated with metastatic brain lesions or toxoplasmosis. For every patient we performed contrast enhanced brain MRI and achieved axial T1WI immediately after contrast injection, in 15, 30 and 45 min. Acquired images were evaluated for the presence of contrast accumulation at delayed images in the central part of the lesions. Overall, we analyzed data for 153 lesions with 64 toxoplasmosis lesions and 89 metastatic.</p></sec><sec><title>Results</title><p>Results. Among 153 lesions with ring-type contrast enhancement central contrast enhancement at delayed images was determined for 83 lesions. Among 89 metastatic lesions 81 demonstrated delayed central enhancement. Among 64 neurotoxoplasmosis lesions only 2 demonstrated delayed central enhancement. The sensitivity of the sign was 88%, specificity 95%.</p></sec><sec><title>Conclusions</title><p>Conclusions. The presence of central contrast enhancement at delayed images significantly increases the probability of metastatic nature of the lesions (specificity 95%). 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