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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2023-39-3-143-152</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-1956</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>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Потенциальная роль радиомического анализа КТ-изображений эпикардиальной жировой ткани в прогнозе развития острого инфаркта миокарда</article-title><trans-title-group xml:lang="en"><trans-title>The potential role of radiochemical analysis of CT images of epicardial adipose tissue in the prognosis of acute myocardial infarction</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0772-6042</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Евгений Викторович, младший научный сотрудник, лаборатория радионуклидных методов исследования</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Evgeny V. Popov, Junior Research Scientist, Department of Nuclear Medicine</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">popov-yevgeniy92@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8649-3648</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильюшенкова</surname><given-names>Ю. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyushenkova</surname><given-names>Y. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильюшенкова Юлия Николаевна, канд. мед. наук, старший научный сотрудник, лаборатория радионуклидных методов исследования</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Julia N. Ilyushenkova, Cand. Sci. (Med.), PhD, Senior Research Scientist Department of Nuclear Medicine</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">ilyushenkova_cardio@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7123-0645</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Репин</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Repin</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Репин Алексей Николаевич, д-р мед. наук, профессор, заведующий отделением амбулаторной кардиологии</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Alexey N. Repin, Dr. Sci. (Med.), Professor, Head of Department of Ambulatory Cardiology</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">ran@cardio-tomsk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1513-8614</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Завадовский</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavadovsky</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Завадовский Константин Валерьевич, д-р мед. наук, заведующий отделом лучевой диагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Konstantin V. Zavadovsky, Dr. Sci. (Med.), Head of Department of Nuclear Medicine</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">konstz@cardio-tomsk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2799-3260</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сазонова</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sazonova</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сазонова Светлана Ивановна, д-р мед. наук, исполняющий обязанности заведующего лабораторией радионуклидных методов исследования</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Svetlana I. Sazonova, Dr. Sci. (Med), Acting Head of Laboratory of Nuclear Medicine</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">sazonova_si@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии, Томский национальный исследовательский медицинский центр 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>2023</year></pub-date><pub-date pub-type="epub"><day>13</day><month>10</month><year>2023</year></pub-date><volume>38</volume><issue>3</issue><fpage>143</fpage><lpage>152</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Попов Е.В., Ильюшенкова Ю.Н., Репин А.Н., Завадовский К.В., Сазонова С.И., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Попов Е.В., Ильюшенкова Ю.Н., Репин А.Н., Завадовский К.В., Сазонова С.И.</copyright-holder><copyright-holder xml:lang="en">Popov E.V., Ilyushenkova Y.N., Repin A.N., Zavadovsky K.V., Sazonova S.I.</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.sibjcem.ru/jour/article/view/1956">https://www.sibjcem.ru/jour/article/view/1956</self-uri><abstract><sec><title>Введение</title><p>Введение. Мультиспиральная компьютерно-томографическая (МСКТ) коронароангиография (КАГ) является высокоинформативным методом визуализации атеросклеротических бляшек (АСБ) в коронарных артериях (КА) и оценки их структуры. В то же время данный метод имеет ряд существенных недостатков, связанных с внутривенным введением йодсодержащих рентгеноконтрастных средств, а также высокой лучевой нагрузкой. Радиомический анализ бесконтрастных МСКТ-изображений позволяет вычислять большое количество дополнительных количественных показателей, которые потенциально могут быть ассоциированы с нестабильностью АСБ и степенью стенозирования КА. В то же время прогностическая и диагностическая ценность радиомических характеристик не исследована.</p></sec><sec><title>Цель</title><p>Цель: оценить наличие ассоциации между радиомическими показателями эпикардиальной жировой ткани (ЭЖТ) на бесконтрастных МСКТ-изображениях сердца и степенью атеросклеротического стеноза КА у больных стабильной ишемической болезнью сердца (ИБС), а также частотой развития острого инфаркта миокарда (ОИМ) в течение 5 лет у данной категории больных.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Ретроспективно нами были просмотрены 100 исследований МСКТ-КАГ, выполненных с целью диагностики коронарной болезни сердца у пациентов. Были отобраны 39 пациентов, у которых имелись признаки стенозирования КА до 50% и которые числились в медицинских информационных системах (МИС) г. Томска в течение не менее 5 лет, а также 15 человек без признаков атеросклероза КА в качестве группы контроля. На бесконтрастных МСКТ-изображениях сердца всех пациентов (54 чел.) оценивали объем ЭЖТ и вычисляли 837 радиомических характеристик. По данным МИС г. Томска отслеживали факт наличия или отсутствия перенесенного в течение 5 лет после МСКТ-КАГ ОИМ у каждого больного. Статистическое сравнение показателей выполняли в группе контроля (группа 2) и в группе исследования (группа 1), а также в подгруппах больных с ОИМ (группа 1б) и без него (группа 1а).</p></sec><sec><title>Результаты</title><p>Результаты. При сравнении группы 1 с группой контроля 2 были установлены значимые отличия (p &lt; 0,05) по всем радиомическим показателям, плотности и объему ЭЖТ. Корреляционный анализ не выявил взаимосвязей между радиомическими характеристиками ЭЖТ и степенью стеноза КА, а также кальциевым индексом. По результатам анализа информации из МИС г. Томска группа 1 была разделена на 2 подгруппы: без ОИМ (подгруппа 1а; n = 27 (50%)) и с ОИМ (подгруппа 1б; n = 12 (22%)). При сравнении подгрупп 1а и 1б значимых различий в объеме и плотности ЭЖТ выявлено не было (p &gt; 0,05), однако существенно различались 7 из 837 радиомических показателей. Множественный регрессионный анализ продемонстрировал, что «Нормализованная неоднородность зоны серого цвета» (Size Zone Nonuniformity) матрицы зоны уровней серого цвета (SZN – GLSZM) и «Дисперсия уровней серого цвета» (Gray Level Variance – GLCM) матрицы совместного возникновения уровней серого цвета являются независимыми предикторами развития ОИМ в течение 5 лет. По результатам ROC-анализа, логистическая модель c включением данных радиомических характеристик продемонстрировала высокие показатели чувствительности и специфичности в прогнозе развития ОИМ (cut-off point &lt; 8025,7; специфичность – 96%, чувствительность – 75%, AUC = 0,806; p &lt; 0,001 для SZN; cut-off point &lt; 4,08; специфичность – 93%, чувствительность – 83%, AUC = 0,861; для GLV; p &lt; 0,001).</p></sec><sec><title>Выводы</title><p>Выводы. Радиомические характеристики SZN GLSZM и GLV GLCM ЭЖТ на бесконтрастных МСКТ-изображениях ассоциированы с частотой развития ОИМ у больных с атеросклерозом КА. Радиомический анализ ЭЖТ потенциально может быть использован для персонализированной оценки риска развития ОИМ.  </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Multispiral computed tomography (MSCT) coronary angiography (CAG) is a highly informative method of visualizing atherosclerotic plaques in the coronary arteries and assessing their structure. At the same time, this method has a few significant drawbacks associated with the intravenous administration of iodine-containing radiopaque agents as well as high radiation exposure. The radiomic analysis of contrast-free MSCT images allows calculating many additional quantitative parameters, which can potentially be associated with atherosclerotic plaque instability and the degree of coronary artery stenosis. At the same time, the prognostic and diagnostic value of radiomic characteristics has not been investigated.</p></sec><sec><title>Aim</title><p>Aim: To assess whether there is an association between radiomic indexes of EAT on non-contrast MSCT cardiac images with the degree of atherosclerotic coronary artery stenosis in patients with stable CAD, as well as the incidence of acute coronary syndrome (ACS) within 5 years in this category of patients.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. We retrospectively reviewed 100 MSCT-CAG studies performed to diagnose coronary heart disease in patients. 39 patients with signs of coronary stenosis up to 50% and registered in Tomsk medical information systems (MIS) for at least 5 years were selected, as well as 15 people without signs of coronary arteries (CA) atherosclerosis as a control group. Epicardial adipose tissue (EAT) volume was assessed and 837 radiomic characteristics were calculated on non-contrasted MSCT cardiac images of all patients (54 people). The presence or absence of ACS within 5 years after MSCT-CAG in each patient was monitored according to Tomsk MIS data. Statistical analysis and comparison of indices were performed in control group (group 2) and study group (group 1), as well as in subgroups of patients who had suffered AMI (group 1a) and those who had not (group 1b).</p></sec><sec><title>Results</title><p>Results. When comparing group 1 with the control group, significant differences (p &lt; 0.05) were found for all radiomic parameters, density, and volume of EAT. Correlation analysis did not reveal any relationship between the radiomic characteristics of EAT and the degree of coronary artery stenosis, as well as the calcium index. According to the results of the MIS of Tomsk analysis, group 1 was divided into 2 subgroups: without ACS (group 1a; n = 27 (50%)) and with ACS (group 1b; n = 12 (22%)). When comparing subgroups 1a and 1b, there were no significant differences in the volume and density of EAT (p &gt; 0.05), however, 8 out of 837 radiomic parameters differed significantly. Multiple regression analysis has shown that the Size Zone Nonuniformity gray level zone matrix (SZN-GLSZM) and Gray Level Variance (GLCM) gray co-occurrence matrix are independent predictors of the development of ACS within 5 years. According to the results of the ROC analysis, the logistic model with the inclusion of radiomic data showed high sensitivity and specificity in predicting the development of ACS (cut-off point &lt;8025.7; specificity 96%, sensitivity 75%, AUC = 0.806, p &lt; 0.001 for SZN; cut-off point &lt;4.08; specificity 93%, sensitivity 83%, AUC = 0.861 for GLV; p &lt; 0.001).</p></sec><sec><title>Conclusion</title><p>Conclusion. SZN GLSZM and GLV GLCM radiomic features on non-contrast MSCT images of EAT are associated with the incidence of ASC in patients with coronary artery atherosclerosis. Radiomic analysis of EAT could potentially be used for personalized assessment of the ACS risk.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>радиомика</kwd><kwd>текстурный анализ</kwd><kwd>острый коронарный синдром</kwd><kwd>атеросклероз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>radiomics</kwd><kwd>texture analysis</kwd><kwd>acute coronary syndrome</kwd><kwd>atherosclerosis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено в рамках государственного задания.</funding-statement><funding-statement xml:lang="en">the study was carried out in the framework of the state assignment.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ferrari R., Rosano G. 2019 guidelines for the diagnosis and management of chronic coronary syndromes: congratulations and criticism [published correction appears in: Eur. Heart J. 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