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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">rentrad</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник рентгенологии и радиологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of radiology and nuclear medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0042-4676</issn><issn pub-type="epub">2619-0478</issn><publisher><publisher-name>Limited Liability Company "LUCHEVAYA DIAGNOSTIKA", Russian Association of Radiologists</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20862/0042-4676-2022-103-4-6-71-77</article-id><article-id custom-type="elpub" pub-id-type="custom">rentrad-742</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Рентгеновская плотность печени у госпитализированных с новой коронавирусной инфекцией (по данным мультиспиральной компьютерной томографии)</article-title><trans-title-group xml:lang="en"><trans-title>Liver X-ray Attenuation in Patients with Novel Coronavirus Infection (Multislice Computed Tomography Study)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4517-1351</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никогосова</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikogosova</surname><given-names>А. К.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никогосова Анаит Карэновна, врач-рентгенолог, науч. сотр.</p><p>ул. Островитянова, 1, стр. 10, Москва, 117342</p></bio><bio xml:lang="en"><p>Аnait К. Nikogosova, Radiologist, Researcher</p><p>ul. Osrovityanova, 1, str. 10, Moscow, 117342</p></bio><email xlink:type="simple">gazanchyan.anait@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5387-4367</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бердалин</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Berdalin</surname><given-names>А. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бердалин Александр Берикович, к. м. н., ст. науч. сотр.</p><p>ул. Островитянова, 1, стр. 10, Москва, 117342</p></bio><bio xml:lang="en"><p>Аlexander B. Berdalin, Cand. Med. Sc., Senior Researcher</p><p>ul. Osrovityanova, 1, str. 10, Moscow, 117342</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/0000-0003-1726-6801</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Губский</surname><given-names>И. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Gubskiy</surname><given-names>I. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Губский Илья Леонидович, к. м. н., ст. науч. сотр.</p><p>ул. Островитянова, 1, стр. 10, Москва, 117342</p></bio><bio xml:lang="en"><p>Ilya L. Gubskiy, Cand. Med. Sc., Senior Researcher</p><p>ul. Osrovityanova, 1, str. 10, Moscow, 117342</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/0000-0002-9690-8325</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лелюк</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Lelyuk</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лелюк Владимир Геннадьевич, д. м. н., профессор, руководитель отдела ультразвуковой и функциональной диагностики</p><p>ул. Островитянова, 1, стр. 10, Москва, 117342</p></bio><bio xml:lang="en"><p>Vladimir G. Lelyuk, Dr. Med. Sc., Professor, Head of Department of Ultrasound and Functional Diagnostics</p><p>ul. Osrovityanova, 1, str. 10, Moscow, 117342</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Федеральный центр мозга и нейротехнологий» Федерального медико-биологического агентства России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>26</day><month>10</month><year>2022</year></pub-date><volume>103</volume><issue>4-6</issue><fpage>71</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никогосова А.К., Бердалин А.Б., Губский И.Л., Лелюк В.Г., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Никогосова А.К., Бердалин А.Б., Губский И.Л., Лелюк В.Г.</copyright-holder><copyright-holder xml:lang="en">Nikogosova А.К., Berdalin А.B., Gubskiy I.L., Lelyuk V.G.</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.russianradiology.ru/jour/article/view/742">https://www.russianradiology.ru/jour/article/view/742</self-uri><abstract><p>Цель: провести анализ рентгеновской плотности печени у госпитализированных по поводу новой коронавирусной инфекции (COVID-19) в зависимости от времени начала заболевания, тяжести поражения легочной паренхимы и исхода заболевания.Материал и методы. Проанализированы данные компьютерной томографии (КТ) органов грудной полости 635 пациентов, госпитализированных по поводу COVID-19. КТ выполняли в различные сроки от начала заболевания. Проводили измерение рентгеновской плотности визуализированных поддиафрагмальных отделов печени путем выделения области интереса на КТ-изображениях. Объем пораженной паренхимы легких оценивали по пятиступенчатой шкале КТ0–4, где КТ0 соответствует отсутствию признаков вирусной пневмонии, КТ1 – вовлечению паренхимы легкого в объеме менее 25%, КТ2 – поражению 25–50% объема легкого, КТ3 – поражению 50–75%, КТ4 – вовлечению паренхимы легкого в объеме более 75%.Результаты. У пациентов с КТ0 рентгеновская плотность (КТ-плотность) печени оказалась значимо выше, чем у больных с КТ1, КТ2, КТ3 и КТ4 (р &lt; 0,01). В течение 1-й недели заболевания происходило уменьшение КТ-плотности печени, в дальнейшем – ее увеличение и возвращение к исходным значениям (р &lt; 0,0005). Динамика рентгеновской плотности печени в группе умерших статистически значимо не отличалась от таковой у выживших и выздоровевших (р = 0,107). В раннюю стадию болезни (0–4-е сутки) КТ-плотность печени у пациентов, которые впоследствии умерли, оказалась достоверно ниже, чем у выживших (p &lt; 0,05).Заключение. Течение COVID-19 характеризуется транзиторным снижением рентгеновской плотности печени. Уменьшение КТ-плотности не коррелирует с объемом пораженной легочной паренхимы у заболевших с КТ2–4. Динамика рентгеновской плотности не связана с исходом заболевания. Тенденция к более выраженному снижению КТ-плотности печени в раннюю стадию заболевания у пациентов с последующим смертельным исходом требует дальнейших исследований.</p></abstract><trans-abstract xml:lang="en"><p>Objective: to analyze the X-ray liver attenuation values in hospitalized patients with novel coronavirus infection (COVID-19) in relation to the time of disease onset, the severity of pulmonary parenchymal involvement, and the disease outcome.Material and methods. Chest computed tomography (CT) findings in 635 patients hospitalized with COVID-19 were analyzed. CT was performed at various times after the disease onset. The attenuation (CT density) values of the visualized liver upper part were measured by selecting the region of interest on CT images. The extent of the affected lung parenchyma was assessed according to the five-step CT0–4 scale, where CT0 corresponds to the absence of viral pneumonia, CT1 – lung parenchyma involvement less than 25%, CT2 – 25–50% lung volume lesion, CT3 – 50–75% lung volume lesion, CT4 – lung parenchyma involvement more than 75%.Results. In patients with CT0, the liver attenuation was significantly higher than in those with CT1, CT2, CT3, and CT4 (p &lt; 0.01). During the first week of the disease, there was a decrease in liver CT density followed by its increase and return to the initial values (p &lt; 0.0005). The dynamics of liver attenuation in the group of patients who died did not differ significantly from those who survived and recovered (p = 0.107). In the early stage of the disease (0–4 days), the liver attenuation in the group of patients who subsequently died turned out to be significantly lower than in the survivors (p &lt; 0.05).Conclusion. The course of COVID-19 is characterized by a transient decrease in liver CT density. The reduction in liver attenuation does not correlate with the volume of the affected lung parenchyma in patients with CT2–4. The dynamics of liver CT density is not associated with the disease outcome. There is a trend towards more pronounced values of liver attenuation decrease in the early stage of the disease in patients who subsequently died, which requires further research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>новая коронавирусная инфекция</kwd><kwd>COVID-19</kwd><kwd>компьютерная томография</kwd><kwd>рентгеновская плотность печени</kwd><kwd>КТ-плотность печени</kwd><kwd>объем поражения паренхимы легких</kwd></kwd-group><kwd-group xml:lang="en"><kwd>new coronavirus infection</kwd><kwd>COVID-19</kwd><kwd>computed tomography</kwd><kwd>X-ray liver attenuation</kwd><kwd>liver CT density</kwd><kwd>volume of lung parenchyma lesion</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">Карта коронавируса COVID-19 онлайн. URL: https://coronavirus-monitor.info (дата обращения 09.06.2022).</mixed-citation><mixed-citation xml:lang="en">COVID-19 coronavirus map online. 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