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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">kpccz</journal-id><journal-title-group><journal-title xml:lang="ru">Комплексные проблемы сердечно-сосудистых заболеваний</journal-title><trans-title-group xml:lang="en"><trans-title>Complex Issues of Cardiovascular Diseases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2306-1278</issn><issn pub-type="epub">2587-9537</issn><publisher><publisher-name>Federal State Budgetary Institution “Research Institute for Complex Issues of Cardiovascular Diseases”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17802/2306-1278-2023-12-1-172-180</article-id><article-id custom-type="elpub" pub-id-type="custom">kpccz-1318</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>ОНЛАЙН. ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ. Лучевая диагностика</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ONLINE. ORIGINAL STUDIES. Diagnostic Radiology</subject></subj-group></article-categories><title-group><article-title>Динамическое наблюдение изменения морфологических и гемодинамических характеристик малых церебральных аневризм</article-title><trans-title-group xml:lang="en"><trans-title>Dynamic monitoring of morphological and hemodynamic evolution of small cerebral aneurysms</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8661-5345</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихвинский</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhvinskii</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тихвинский Денис Вячеславович, старший лаборант-исследователь, </p><p>пр. Лаврентьева, 15, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>Tikhvinskii Denis V., Senior Research Assistant,</p><p>15, Lavrentyev Ave., Novosibirsk, 630090</p></bio><email xlink:type="simple">nabster98@yandex.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/0000-0003-0359-648X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куянова</surname><given-names>Ю. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuyanova</surname><given-names>Yu. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куянова Юлия Олеговна, младший научный сотрудник, </p><p>пр. Лаврентьева, 15, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>Kuyanova Yulia O., Junior Researcher,</p><p>15, Lavrentyev Ave., Novosibirsk, 630090</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/0000-0001-9034-2212</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бервицкий</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bervitskiy</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бервицкий Анатолий Владимирович, лаборант, пр. Лаврентьева, 15, Новосибирск, 630090;</p><p>врач-нейрохирург, Немировича-Данченко, 132/1, Новосибирск, 630087</p></bio><bio xml:lang="en"><p>Bervitskiy Anatoly V., Laboratory Assistant, 15, Lavrentyev Ave., Novosibirsk, 630090;</p><p>Neurosurgeon, 132/1, Nemirovicha-Danchenko St., 630087</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8279-8738</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Обединская</surname><given-names>Н. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Obedinskaya</surname><given-names>N. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Обединская Наталья Ростиславовна, лаборант, пр. Лаврентьева, 15, Новосибирск, 630090;</p><p>врач-рентгенолог, ул. Институтская, 3А, Новосибирск, 630090;</p></bio><bio xml:lang="en"><p>Obedinskaya Natalia R., Laboratory Assistant, 15, Lavrentyev Ave., Novosibirsk, 630090;</p><p>Radiologist, 3A, Institutskaya St., Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1277-4113</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тулупов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tulupov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тулупов Андрей Александрович, доктор медицинских наук, член-корр. РАН ведущий научный сотрудник, пр. Лаврентьева, 15, Новосибирск, 630090;</p><p>заведующий лабораторией МРТ технологий, ул. Институтская, 3А, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>Tulupov Andrey A., MD, PhD, Corresponding Member of the Russian Academy of Sciences Leading Researcher, 15, Lavrentyev Ave., Novosibirsk, 630090;</p><p>Head of the Laboratory of MRI Technologies, 3A, Institutskaya St., Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2496-3042</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Паршин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Parshin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Паршин Даниил Васильевич, старший научный сотрудник, </p><p>пр. Лаврентьева, 15, Новосибирск, 630090</p></bio><bio xml:lang="en"><p>Parshin Daniel V., Senior Researcher,</p><p>15, Lavrentyev Ave., Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт гидродинамики им. М.А. Лаврентьева Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Federal State Budgetary Institution of Science “Lavrentyev Institute of Hydrodynamics” of Siberian Branch of Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт гидродинамики им. М.А. Лаврентьева Сибирского отделения Российской академии наук;&#13;
Федеральное государственное бюджетное учреждение «Федеральный центр нейрохирургии» Министерства здравоохранения Российской Федерации (г. Новосибирск)<country>Россия</country></aff><aff xml:lang="en">Federal State Budgetary Institution of Science “Lavrentyev Institute of Hydrodynamics” of Siberian Branch of Russian Academy of Sciences;&#13;
Federal State Budgetary Institution “Federal Neurosurgical Center”<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт гидродинамики им. М.А. Лаврентьева Сибирского отделения Российской академии наук;&#13;
Федеральное государственное бюджетное учреждение науки Институт «Международный томографический центр» Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Federal State Budgetary Institution of Science “Lavrentyev Institute of Hydrodynamics” of Siberian Branch of Russian Academy of Sciences;&#13;
Federal State Budgetary Institution of Science “International Tomography Center” of the Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>04</month><year>2023</year></pub-date><volume>12</volume><issue>1</issue><fpage>172</fpage><lpage>180</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тихвинский Д.В., Куянова Ю.О., Бервицкий А.В., Обединская Н.Р., Тулупов А.А., Паршин Д.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Тихвинский Д.В., Куянова Ю.О., Бервицкий А.В., Обединская Н.Р., Тулупов А.А., Паршин Д.В.</copyright-holder><copyright-holder xml:lang="en">Tikhvinskii D.V., Kuyanova Y.O., Bervitskiy A.V., Obedinskaya N.R., Tulupov A.A., Parshin D.V.</copyright-holder><license 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.nii-kpssz.com/jour/article/view/1318">https://www.nii-kpssz.com/jour/article/view/1318</self-uri><abstract><p>Основные положения Малые церебральные аневризмы (&lt;3 мм), составляющие большую часть всех аневризм в абсолютном выражении, разрываются чаще, хотя стандартные (&gt;3 мм) и большие (&gt;15 мм) имеют больший риск разрыва. В данной работе впервые показано, что критерии риска разрыва, установленные для больших церебральных аневризм, не применимы к малым аневризмам. Исследовано развитие малых аневризм у реальных пациентов и выполнено сравнение измеренных морфологических характеристик аневризм с их рассчитанными гидродинамическими характеристиками.</p><sec><title>Цель</title><p>Цель. Изучить динамику развития малых церебральных аневризм, оценить применимость существующих методик расчета риска разрыва, сформулировать новые уточняющие гипотезы расчета риска разрыва малых церебральных аневризм.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Данные пациентов предоставлены Федеральным центром нейрохирургии г. Новосибирска. КТ-ангиография выполнена на томографе Philips Ingenuity (Philips Medical Systems, США; 128 срезов). Динамика размеров аневризм оценена путем измерения трех основных размеров с точностью до 0,1 мм в программной среде IntelliSpace Portal Philips. Численные расчеты произведены в ANSYS CFX 2020R2.</p><p>Результаты Гемодинамические характеристики меняются в направлении изменения купола аневризмы. В случае когда морфологические характеристики аневризмы не менялись, наблюдалось изменение геометрии Виллизиева круга пациента: кривизна артерий, углы бифуркаций (структура круга оставалась неизменна). Критерий разрыва аневризмы PHASES оказался неприменим для рассмотренных аневризм.</p><p>Заключение В настоящей работе впервые сформулировано и подтверждено на данных добровольцев как морфологически, так и гидродинамически, что на изменение рисковых оценок для малых аневризм принципиальное влияние оказывает даже незначительное перестроение Виллизиева круга: изменение (тавтология) кривизны отдельных сегментов церебральных артерий, а также углов их бифуркаций. Полученный результат направлен на модификацию существующих рисковых критериев разрыва церебральных аневризм.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Highlights</title><p>Highlights. Small cerebral aneurysms (&lt;3 mm), which make up the majority of aneurysms, rupture more frequently, although medium (&gt;3 mm) and giant (&gt;15 mm) aneurysms and have a higher risk of rupture. This article proves for the first time that the rupture risk criteria developed for giant cerebral aneurysms do not work for small aneurysms. The development of small aneurysms in patients was analyzed and measured morphological features of aneurysms were compared with their calculated hydrodynamic characteristics.</p></sec><sec><title>Aim</title><p>Aim. To study the dynamics of development of small cerebral aneurysms, to assess the applicability of existing methods for calculating the risk of rupture, to formulate new clarifying hypotheses for calculating the risk of rupture of small cerebral aneurysms.</p></sec><sec><title>Methods</title><p>Methods. Patient data were provided by the Federal Center for Neurosurgery, Novosibirsk. CT angiography was performed using a Philips Ingenuite CT scanner (Philips Medical Systems, USA, 128 slices). Aneurysm size dynamics was assessed by measuring three main sizes with an accuracy of 0.1 mm using the IntelliSpace Portal Philips software environment. Numerical calculations were carried out using ANSYS CFX 2020R2.</p></sec><sec><title>Results</title><p>Results. Hemodynamic characteristics change according to the changes of the aneurysm dome. In the case when morphological characteristics of the aneurysm have not changed, a change in the geometry of the patient's circle of Willis (coW) is observed: the curvature of the arteries, the angles of bifurcations (the structure of coW remained unchanged). The PHASES score (absolute risks of rupture for aneurysms) was found to be unusable for the considered aneurysms.</p></sec><sec><title>Conclusion</title><p>Conclusion. This work formulates and morphologically and hydrodynamically confirms for the first time in the volunteers that the change in risk estimates for such aneurysms is fundamentally affected, even insignificantly, by the change in the circle of Willis: a change in the curvature of individual segments of the cerebral arteries, as well as the angles of their bifurcations. The results obtained are aimed at modifying the existing risk criteria for rupture of cerebral aneurysms.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>церебральные аневризмы</kwd><kwd>малые аневризмы</kwd><kwd>риск разрыва</kwd><kwd>виллизиев круг</kwd><kwd>гемодинамика</kwd><kwd>структура Виллизиева круга</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cerebral aneurysms</kwd><kwd>small aneurysms</kwd><kwd>risk of rupture</kwd><kwd>circle of Willis</kwd><kwd>hemodynamics</kwd><kwd>structure of the circle of Willis</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена при поддержке гранта Российского научного фонда (проект № 20-71-10034).</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">Rinkel G.J., Djibuti M., Algra A., van Gijn J. Prevalence and risk of rupture of intracranial aneurysms: a systematic review. 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