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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Almanac of Clinical Medicine</journal-id><journal-title-group><journal-title xml:lang="en">Almanac of Clinical Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Альманах клинической медицины</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2072-0505</issn><issn publication-format="electronic">2587-9294</issn><publisher><publisher-name xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">14124</article-id><article-id pub-id-type="doi">10.18786/2072-0505-2023-51-019</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Comparative assessment of computed tomography and magnetic resonance imaging in the identification of the middle ear cholesteatoma</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительная оценка компьютерной и магнитно-резонансной томографии в выявлении холестеатомы среднего уха</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9037-0034</contrib-id><name-alternatives><name xml:lang="en"><surname>Stepanova</surname><given-names>Elena A.</given-names></name><name xml:lang="ru"><surname>Степанова</surname><given-names>Елена Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Head of Department of Roentgenology</p></bio><bio xml:lang="ru"><p>канд. мед. наук, заведующая отделением рентгенологии</p></bio><email>stepanovamoniki@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2473-3113</contrib-id><name-alternatives><name xml:lang="en"><surname>Garov</surname><given-names>Evgeny V.</given-names></name><name xml:lang="ru"><surname>Гаров</surname><given-names>Евгений Вениаминович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Head of Department of Ear Microsurgery</p></bio><bio xml:lang="ru"><p>д-р мед. наук, руководитель отдела микрохирургии уха</p></bio><email>egarov@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</institution></aff><aff><institution xml:lang="ru">ГБУЗ МО «Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">The Sverzhevskiy Otorhinolaryngology Healthcare Research Institute</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Научно-исследовательский клинический институт оториноларингологии им. Л.И. Свержевского» ДЗМ</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2023-07-25" publication-format="electronic"><day>25</day><month>07</month><year>2023</year></pub-date><pub-date date-type="pub" iso-8601-date="2023-08-02" publication-format="electronic"><day>02</day><month>08</month><year>2023</year></pub-date><volume>51</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>154</fpage><lpage>162</lpage><history><date date-type="received" iso-8601-date="2023-07-05"><day>05</day><month>07</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-07-13"><day>13</day><month>07</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Stepanova E.A., Garov E.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Степанова Е.А., Гаров Е.В.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Stepanova E.A., Garov E.V.</copyright-holder><copyright-holder xml:lang="ru">Степанова Е.А., Гаров Е.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://almclinmed.ru/jour/article/view/14124">https://almclinmed.ru/jour/article/view/14124</self-uri><abstract xml:lang="en"><p><bold>Background</bold>: Chronic suppurative otitis media amounts up to 22.4% among all ear, nose and throat disorders. Its complication, a middle ear cholesteatoma, is one of the most frequent causes of patients' referral to an otologist. The literature on the preferential diagnostic method for the cholesteatoma is contradictory, despite that its main treatment approach is surgery. Therefore, it is important to identify the most valid diagnostic method, which would allow for the planning of the most effective surgical treatment.</p> <p><bold>Aim</bold>: To compare sensitivity and specificity of computed tomography (CT) and magnetic resonance imaging (MRI) in the diagnosis of cholesteatoma, to assess the possibility of quantitative values of MRI diffusion limitation in cholesteatoma.</p> <p><bold>Materials and methods</bold>: From 2015 to 2021, we examined 542 out- and in-patients (849 imagings of temporal bones) with chronic suppurative otitis media. The analysis of CT and MRI sensitivity and specificity included the data from 289 patient examinations, both with newly diagnosed cholesteatoma and having at least one past surgery and had their diagnosis verified intraoperatively and histologically. We analyzed the measured MRI diffusion coefficients from newly diagnosed and relapsed cholesteatoma. The MRI signal values were calculated for 266 masses from 238 patients.</p> <p><bold>Results</bold>: MRI sensitivity for the diagnosis of cholesteatoma was 95.2%, specificity 81.2%. CT sensitivity and specificity for the diagnosis of cholesteatoma were 60.1 и 44.7%, respectively. There were no differences in the measured MRI diffusion coefficients between the relapsed and newly diagnosed cholesteatomas. The comparison of cholesteatoma signals with those from artifacts showed the overlapping in their mean values; therefore, it is impossible to rely only on the value of the diffusion coefficient.</p> <p><bold>Conclusion</bold>: In the diagnosis of cholesteatomas, MRI is significantly more sensitive and specific than CT. No significant differences in MRI semiotics and the degree of MRI diffusion limitation at NON-EPI DWI (b1000) have been found for the cholesteatomas that had never been operated, and the relapsing cholesteatomas.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность</bold>. В структуре оториноларингологических заболеваний на долю хронического гнойного среднего отита приходится до 22,4%. Его осложнение – холестеатома среднего уха – одна из самых частых причин обращения пациентов к отиатру. В литературе нет единства в отношении предпочтительного метода диагностики холестеатомы, несмотря на то что основной метод ее лечения – хирургический. В этой связи важно определить наиболее надежный метод диагностики, который позволил бы планировать максимально эффективное хирургическое лечение.</p> <p><bold>Цель</bold> – сравнить чувствительность и специфичность методов компьютерной томографии (КТ) и магнитно-резонансной томографии (МРТ) в выявлении холестеатомы, оценить возможность использования количественного значения ограничения МР-диффузии при холестеатоме.</p> <p><bold>Материал и методы</bold>. За период c 2015 по 2021 г. было обследовано 542 амбулаторных и стационарных пациента (849 обследований височных костей) с диагнозом хронического гнойного среднего отита. В анализ чувствительности и специфичности методов КТ и МРТ были включены данные 289 обследований пациентов, как с впервые выявленной холестеатомой, так и хотя бы однократно оперированных, с диагнозом, верифицированным интраоперационно и гистологически. Были проанализированы измеряемые коэффициенты МР-диффузии от холестеатомы, как впервые выявленной, так и рецидивной. Данные сигналов МРТ были просчитаны для 266 образований у 238 пациентов.</p> <p><bold>Результаты</bold>. Чувствительность МРТ в выявлении холестеатомы составила 95,2%, специфичность – 81,2%. Чувствительность и специфичность КТ в выявлении холестеатомы были 60,1 и 44,7% соответственно. Существенных различий в измеряемых коэффициентах МР-диффузии для рецидивной и впервые выявленной холестеатомы получено не было. При сравнении сигнала от холестеатомы с сигналами от артефактов мы получили перекрывающиеся в средних значениях результаты; из этого следует, что полагаться только на значение коэффициента диффузии нельзя.</p> <p><bold>Заключение</bold>. В диагностике холестеатомы метод МРТ демонстрирует значительно более высокие показатели чувствительности и специфичности, чем КТ. Не выявлено существенных различий в МР-семиотике и степени ограничения МР-диффузии на NON-EPI DWI (b1000) между холестеатомами, еще не подвергшимися хирургическому лечению, и рецидивными.</p></trans-abstract><kwd-group xml:lang="en"><kwd>chronic suppurative otitis media</kwd><kwd>middle ear cholesteatomas</kwd><kwd>diagnosis</kwd><kwd>computed tomography</kwd><kwd>magnetic resonance imaging</kwd><kwd>sensitivity</kwd><kwd>specificity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>хронический гнойный средний отит</kwd><kwd>холестеатома среднего уха</kwd><kwd>диагностика</kwd><kwd>компьютерная томография</kwd><kwd>магнитно-резонансная томография</kwd><kwd>чувствительность</kwd><kwd>специфичность</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Bukurov B, Arsovic N, Grujicic SS, Haggard M, Spencer H, Marinkovic JE. 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