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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">10.29001/2073-8552-2026-3167</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-3167</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Количественная оценка перфузии миокарда по данным динамической однофотонной эмиссионной компьютерной томографии у пациентов с сахарным диабетом 2 типа при необструктивном поражении коронарных артерий</article-title><trans-title-group xml:lang="en"><trans-title>Quantitative assessment of myocardial perfusion based on dynamic single-photon emission computed tomography in patients with type 2 diabetes mellitus and non-obstructive coronary artery disease</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-0914-3722</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цыгикало</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsygikalo</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цыгикало Арина Александровна, младший научный сотрудник, лаборатория радионуклидных методов исследования</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а </p></bio><bio xml:lang="en"><p>Arina A. Tsygikalo, Junior Research Scientist, Laboratory of Radionuclide Research Methods</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">arina.cygikalo@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/0000-0003-0883-466X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мочула</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mochula</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мочула Андрей Викторович, канд. мед. наук, старший научный сотрудник лаборатории радионуклидных методов исследования, и.о. руководителя отделения рентгеновских и томографических методов диагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а </p></bio><bio xml:lang="en"><p>Andrey V. Mochula, Cand. Sci. (Med.), Senior Research Scientist, Laboratory of Radionuclide Research Methods, Acting Head of the Department of X-Ray and Tomographic Diagnostic Methods</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">mochula.andrew@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/0000-0002-1311-0378</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мальцева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Maltseva</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мальцева Алина Николаевна, канд. мед. наук, научный сотрудник, отделение рентгеновских и томографических методов диагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а </p></bio><bio xml:lang="en"><p>Alina N. Maltseva, Cand. Sci. (Med.), Research Scientis, Department of X-Ray and Tomographic Diagnostic Methods</p><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">maltseva.alina.93@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/0000-0001-9011-8720</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саприна</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Saprina</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саприна Татьяна Владимировна, д-р мед. наук, профессор кафедры факультетской терапии с курсами эндокринологии и клинической фармакологии</p><p>634050, Российская Федерация, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Tatyana V. Saprina, Dr. Sci. (Med.), Professor, Department of Faculty Therapy with Courses of Endocrinology and Clinical Pharmacology</p><p>2, Moskovsky tract, Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">tanja.v.saprina@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7879-9321</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Энерт</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Enert</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Энерт Анастасия Витальевна, к.м.н., ассистент кафедры факультетской терапии с курсами эндокринологии и клинической фармакологии</p><p>634050, Российская Федерация, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Anastasia V. Enert, Cand. Sci. (Med.), Assistant, Department of Faculty Therapy with Courses of Endocrinology and Clinical Pharmacology</p><p>2, Moskovsky tract, Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">anastasiya_enert@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4441-821X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Криницкая</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Krinitskaya</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Криницкая Анжелика Сергеевна, ассистент кафедры факультетской терапии с курсами эндокринологии и клинической фармакологии, врач-эндокринолог</p><p>634050, Российская Федерация, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Anzhelika S. Krinitskaya, Assistant, Department of Faculty Therapy with Courses of Endocrinology and Clinical Pharmacology, Endocrinologist</p><p>2, Moskovsky tract, Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">bashirova.as@mail.ru</email><xref ref-type="aff" rid="aff-2"/></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, доцент, заведующий отделением лучевой диагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а </p></bio><bio xml:lang="en"><p>Konstantin V. Zavadovsky, Dr. Sci. (Med.), Associate Professor, Head of the Department of Radiation Diagnostics</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-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии, Томский национальный исследовательский медицинский центр Российской академии наук (НИИ кардиологии Томского НИМЦ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences (Cardiology Research Institute, Tomsk NRMC)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Сибирский государственный медицинский университет» Министерства здравоохранения Российской Федерации (СибГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University (SSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>18</day><month>09</month><year>2026</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Принято в печать</issue-title><elocation-id>3167</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Цыгикало А.А., Мочула А.В., Мальцева А.Н., Саприна Т.В., Энерт А.В., Криницкая А.С., Завадовский К.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Цыгикало А.А., Мочула А.В., Мальцева А.Н., Саприна Т.В., Энерт А.В., Криницкая А.С., Завадовский К.В.</copyright-holder><copyright-holder xml:lang="en">Tsygikalo A.A., Mochula A.V., Maltseva A.N., Saprina T.V., Enert A.V., Krinitskaya A.S., Zavadovsky K.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://www.sibjcem.ru/jour/article/view/3167">https://www.sibjcem.ru/jour/article/view/3167</self-uri><abstract><p>У пациентов с сахарным диабетом 2 типа (СД2) ишемия миокарда часто развивается при необструктивном поражении коронарных артерий (НПКА), что указывает на ведущую роль коронарной микрососудистой дисфункции (КМД). Количественная оценка резерва миокардиального кровотока (РМК) с помощью динамической  однофотонной  эмиссионной  компьютерной  томографии (ОФЭКТ) с полупроводниковыми детекторами (CZT) представляет собой перспективный, но малоизученный подход при обследовании данной когорты пациентов.</p><sec><title>Цель исследования</title><p>Цель исследования. Определить особенности функционального состояния микроциркуляторного русла у пациентов с СД2 на фоне НПКА по данным динамической CZT-ОФЭКТ миокарда.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включили 75 пациентов с НПКА: 36 – с СД2 (СД+) и 39 – без диабета (СД−). Всем выполнили динамическую ОФЭКТ миокарда с 99ᵐTc-МИБИ и перфузионную ЭКГ-синхронизированную ОФЭКТ. Оценивали полуколичественные показатели перфузии и абсолютные значения миокардиального кровотока (МК) в покое и при нагрузке, а также РМК.</p></sec><sec><title>Результаты</title><p>Результаты. У пациентов с СД2 по сравнению с группой без диабета выявлены статистически значимо более высокие значения сумм баллов дефектов перфузии (p&lt;0,01) и более высокий миокардиальный кровоток (МК) в покое (p=0,004), тогда как МК при нагрузке значимо не различался. Значения РМК и абсолютного прироста кровотока оказались ниже в группе СД2 (p&lt;0,01 и p=0,03 соответственно). Множественный регрессионный анализ подтвердил, что наличие СД2 является возможным предиктором повышения МК в покое.</p></sec><sec><title>Заключение</title><p>Заключение. Впервые с помощью динамической CZT-ОФЭКТ установлено, что у пациентов с СД2 и НПКА ключевым гемодинамическим нарушением является повышение МК в покое, которое обуславливает снижение РМК, что может свидетельствовать о ранней КМД. Количественная оценка компонентов МК с помощью динамической CZT-ОФЭКТ расширяет диагностические возможности и может служить основой для стратификации кардиоваскулярного риска в этой группе.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. In patients with type 2 diabetes mellitus (T2DM), myocardial ischemia often develops in the presence of non-obstructive coronary artery disease (NOCAD), indicating a leading role of coronary microvascular dysfunction (CMD). Quantitative assessment of myocardial flow reserve (MFR) using dynamic SPECT with semiconductor detectors (CZT) represents a promising yet understudied approach in this cohort.</p></sec><sec><title>Aim</title><p>Aim: To determine the functional characteristics of the microcirculatory bed in patients with T2DM and NOCAD using dynamic CZT-SPECT myocardial perfusion imaging. Material and methods. The study included 75 patients with NOCAD: 36 with T2DM and 39 without diabetes. All patients underwent dynamic myocardial SPECT with ⁹⁹ᵐTc-MIBI and perfusion ECG‑gated SPECT. Semi-quantitative perfusion parameters, absolute values of myocardial blood flow (MBF) at rest and during stress, and MFR were assessed.</p></sec><sec><title>Results</title><p>Results. Compared with the non-diabetic group, patients with T2DM demonstrated statistically significantly higher summed perfusion defect scores (p&lt;0.01) and higher rest MBF (p=0.004) were found, whereas stress MBF did not differ significantly. The medians of MFR and absolute increase in blood flow were lower in the T2DM group (p&lt;0.01 and p=0.03, respectively). Multiple regression analysis confirmed T2DM as an independent predictor of elevated resting MBF.</p></sec><sec><title>Conclusion</title><p>Conclusion. For the first time, using dynamic CZT-SPECT, it was demonstrated that in patients with T2DM and NOCAD the key hemodynamic abnormality is an increase in resting MBF, which leads to a reduction in MFR and may indicate early CMD. Quantitative assessment of MBF components by dynamic CZT-SPECT expands diagnostic capabilities and may serve as a basis for cardiovascular risk stratification in this patient group.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>коронарная микрососудистая дисфункция</kwd><kwd>миокардиальный&#13;
кровоток</kwd><kwd>необструктивное поражение коронарных артерий</kwd><kwd>однофотонная&#13;
эмиссионная компьютерная томография</kwd><kwd>резерв миокардиального кровотока</kwd><kwd>сахарный диабет 2-го типа</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coronary microvascular dysfunction (CMD)</kwd><kwd>myocardial blood flow (MBF)</kwd><kwd>non-obstructive coronary artery disease (NOCAD)</kwd><kwd>single-photon emission computed tomography (SPECT)</kwd><kwd>myocardial flow reserve (MFR)</kwd><kwd>type 2 diabetes mellitus (T2DM)</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено в рамках гос. задания ФНИ № 122020300044-8.</funding-statement><funding-statement xml:lang="en">the study was carried out within the framework of state assignment for fundamental scientific research (FNI) No. 122020300044-8.</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">Singh H., Kumar R., Singh A., et al. 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