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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">10.29001/2073-8552-2022-756</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-2233</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>Ассоциация показателей механической диссинхронии сердца с данными динамической однофотонной эмиссионной компьютерной томографии миокарда: роль временного интервала между стресс-тестом и записью</article-title><trans-title-group xml:lang="en"><trans-title>Association of cardiac mechanical dyssynchrony indices with data of dynamic single-photon emission computed tomography of the myocardium: the role of the time interval between the stress test and recording</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9887-8214</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шипулин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shipulin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шипулин Владимир Владимирович, канд. мед. наук, научный сотрудник,  лаборатория  радионуклидных  методов  исследования</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Vladimir V. Shipulin, Cand. Sci. (Med.), Research Scientist, Department of Nuclear Medicine</p><p>Kievskaya str., 111A, Tomsk, Tomsk region, 634012</p></bio><email xlink:type="simple">shipartphoto@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/0009-0004-4137-8912</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончикова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gonchikova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гончикова Елена Валерьевна, врач функциональной диагностики, лаборатория радионуклидных методов исследования</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Elena V. Gonchikova, Functional Diagnostics Doctor, Department of Nuclear Medicine</p><p>Kievskaya str., 111A, Tomsk, Tomsk region, 634012</p></bio><email xlink:type="simple">elenagoncikova8657@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/0000-0002-4650-1105</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поликарпов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Polikarpov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Поликарпов Семен Александрович, студент 6-го курса, лечебный факультет</p><p>634050, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Semen A. Polikarpov, Student</p><p>2, Moskovsky tract, Tomsk, 634050</p></bio><email xlink:type="simple">Pt.batman1999@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0883-466X</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 Анрей Викторович, канд. мед. наук, старший научный сотрудник,  лаборатория  радионуклидных  методов  исследования</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Andrey V. Mochula, Cand. Sci. (Med.), Senior Research Scientist, Department of Nuclear Medicine</p><p>Kievskaya str., 111A, Tomsk, Tomsk region, 634012</p></bio><email xlink:type="simple">mochula.andrew@gmail.com</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>Сибирский государственный  медицинский  университет  Министерства здравоохранения Российской Федерации (СибГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University of the Ministry of Health of the Russian Federation (SSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>04</month><year>2024</year></pub-date><volume>39</volume><issue>2</issue><fpage>149</fpage><lpage>159</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шипулин В.В., Гончикова Е.В., Поликарпов С.А., Мочула А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Шипулин В.В., Гончикова Е.В., Поликарпов С.А., Мочула А.В.</copyright-holder><copyright-holder xml:lang="en">Shipulin V.V., Gonchikova E.V., Polikarpov S.A., Mochula A.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/2233">https://www.sibjcem.ru/jour/article/view/2233</self-uri><abstract><sec><title>Введение</title><p>Введение. Наличие механической диссинхронии (МД), согласно данным ЭКГ-синхронизированной перфузионной сцинтиграфии миокарда, является чувствительным маркером нарушения перфузии миокарда, однако прямое сравнение ее с показателями резерва миокардиального кровотока (РМК) по данным однофотонной эмиссионной компьютерной томографии (ОФЭКТ) не проводилось. Стандартные протоколы проведения перфузионной сцинтиграфии миокарда подразумевают большой временной интервал между стресс-тестом и записью, за который стресс-индуцированные изменения могут пройти. Потенциально имеется возможность сократить временной интервал до 5 мин.</p></sec><sec><title>Цель исследования</title><p>Цель исследования: оценить взаимосвязь показателей миокардиального кровотока и РМК, согласно данным ОФЭКТ, с показателями МД, полученными при рутинной ЭКГ-синхронизированной перфузионной сцинтиграфии миокарда через 5 и 60 мин после нагрузочного теста.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование вошли 20 пациентов с подозрением на наличие ишемической болезни сердца (ИБС), с сохраненной фракцией выброса левого желудочка (ФВЛЖ) и без обструктивного поражения коронарных артерий, по данным мультиспиральной компьютерной коронароангиографии (МСКТ-КАГ). Всем пациентам была проведена динамическая ОФЭКТ (дОФЭКТ) по двухдневному протоколу «покой / нагрузка». Через 60 мин после введения радиофармпрепарата (РФП) проводилась ЭКГ-синхронизированная запись перфузии миокарда. По результатам дОФЭКТ путем постобработки были получены данные миокардиального кровотока и РМК, а также показатели МД (phase histogram standard deviation (PSD, град.) и phase histogram bandwidth (HBW, град.) с 5-й мин после введения РФП. Из отсроченных изображений были получены данные о состоянии перфузии, а также показатели МД, аналогичные таковым по данным дОФЭКТ (PSD, HBW). На основании данных дОФЭКТ пациенты были разделены на 2 группы равного размера (n = 10): первая группа – с сохраненным РМК (≥ 2,0), вторая группа – со сниженным РМК (&lt; 2,0).</p></sec><sec><title>Результаты</title><p>Результаты. Корреляционный анализ продемонстрировал, что показатели МД на фоне стресс-теста при раннем сканировании имеют более сильную корреляцию с показателями РМК (PSD ρ = –0,68; р &lt; 0,001; HBW ρ = –0,68; p = 0,001) по сравнению с показателями отсроченного сканирования (PSD ρ = –0,38; p = 0,019; HBW ρ = –0,44; p = 0,005). По данным многофакторного регрессионного анализа, PSD на фоне стресс-теста при раннем сканировании являлось единственным статистически значимым предиктором снижения РМК относительно порогового значения PSD = 22° (отношение шансов (ОШ) 1,29 (1,1; 1,53)). Построенная прогностическая модель логистической регрессии обладала чувствительностью 81% и специфичностью 87% (AUC = 0,86; p &lt; 0,001) в предсказании повышения / понижения показателей РМК, согласно данным дОФЭКТ.</p></sec><sec><title>Заключение</title><p>Заключение. Показатели МД ЛЖ, полученные при ранней постстрессовой ЭКГ-синхронизированной перфузионной сцинтиграфии миокарда, имеют более сильную ассоциацию с показателями РМК.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. According to ECG-synchronized myocardial perfusion imaging (MPI) mechanical dyssynchrony (MD) is a sensitive marker of impaired myocardial perfusion. However, its direct comparison with indicators of myocardial blood flow reserve (MFR) according to single-photon emission computed tomography (SPECT) was not carried out. Traditional MPI protocols imply a long gap between stress test and image acquisition, during which stress-induced changes may pass. It is potentially possible to reduce the time interval down to 5 minutes.</p></sec><sec><title>Aim</title><p>Aim: To investigate the relationship between early and delayed MD indices and the data of MFR by means of SPECT.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. The study included 20 patients with suspected coronary heart disease, preserved left ventricular ejection fraction (&gt; 55%) and without obstructive coronary artery lesions (&lt; 50%) according to multislice computed coronary angiography. All patients underwent dynamic SPECT (dSPECT) according to a two-day rest/stress protocol. Gated MPI was performed 60 minutes after radiopharmaceutical administration. Myocardial blood flow and reserve, as well as phase histogram standard deviation (PSD, degree) and phase histogram bandwidth (HBW, degree) from 5 minutes after radiopharmaceutical administration were obtained from the dSPECT data by postprocessing. Perfusion data as well as MD indices (PSD, HBW) were obtained from delayed images. Based on dSPECT data, patients were divided into 2 groups: with preserved (MFR ≥ 2.0) and reduced (MFR &lt; 2.0) myocardial blood flow reserve.</p></sec><sec><title>Results</title><p>Results. Correlation analysis showed that MD indices on stress test in early scan had a stronger association with MFR (PSD ρ = –0.68, p &lt; 0.001; HBW ρ = –0.68, p = 0.001) compared to those in delayed scan (PSD ρ = –0.38, p = 0.019; HBW ρ = –0.44, p = 0.005). According to multivariate regression analysis, PSD on stress test at early scan was the only independent predictor of reduced MFR (OR 1.29 (1.1; 1.53)). Stress PSD &gt; 22° obtained at early scanning had a sensitivity of 81% and specificity of 87% (AUC = 0.86, p &lt; 0.001) in predicting of reduced MFR.</p></sec><sec><title>Conclusion</title><p>Conclusion. Left ventricular mechanical dyssynchrony indices obtained by early post-stress gated MPI have a stronger association with myocardial blood flow reserve indices.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>резерв  миокардиального  кровотока</kwd><kwd>динамическая однофотонная  эмиссионная  компьютерная  томография</kwd><kwd>механическая диссинхрония</kwd><kwd>ЭКГ-синхронизированная  перфузионная  сцинтиграфия миокарда</kwd></kwd-group><kwd-group xml:lang="en"><kwd>myocardial blood flow reserve</kwd><kwd>dynamic SPECT</kwd><kwd>mechanical dyssynchrony</kwd><kwd>gated SPECT</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено за счет гранта Российского научного фонда № 23-75-01085, https://rscf.ru/project/23-75-01085/.</funding-statement><funding-statement xml:lang="en">the study was supported by Russian Science Foundation grant No. 23-75- 01085, https://rscf.ru/project/23-75-01085/ .</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">Kunadian V., Chieffo A., Camici P.G., Berry C., Escaned J., Maas A.H.EM. 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