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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">10.20862/0042-4676-2018-99-2-71-78</article-id><article-id custom-type="elpub" pub-id-type="custom">rentrad-328</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>ВЗАИМОСВЯЗЬ КОНТРАКТИЛЬНОЙ ФУНКЦИИ ЛЕВОГО ЖЕЛУДОЧКА И ВРЕМЕНИ РЕЛАКСАЦИИ МИОКАРДА Т1 ПРИ ПРОВЕДЕНИИ КАРТИРОВАНИЯ У ПАЦИЕНТОВ С ГИПЕРТРОФИЧЕСКОЙ КАРДИОМИОПАТИЕЙ С ПОМОЩЬЮ МАГНИТНО-РЕЗОНАНСНОЙ ТОМОГРАФИИ</article-title><trans-title-group xml:lang="en"><trans-title>CORRELATION BETWEEN LEFT VENTRICULAR CONTRACTILITY AND MYOCARDIAL T1-RELAXATION TIME DURING MAPPING IN PATIENTS WITH HYPERTROPHIC CARDIOMYOPATHY BY MAGNETIC RESONANCE IMAGING</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0140-8166</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дарий</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Dariy</surname><given-names>O. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-рентгенолог. </p><p>Рублевское ш., 135, Москва, 121552.</p></bio><bio xml:lang="en"><p>Radiologist.</p><p>Rublevskoe Shosse, 135, Moscow, 121552.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александрова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrova</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к. м. н., ст. науч. сотр.</p><p>Рублевское ш., 135, Москва, 121552.</p></bio><bio xml:lang="en"><p>MD, PhD, Senior Researcher. </p><p>Rublevskoe Shosse, 135, Moscow, 121552.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Березницкий</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bereznitskiy</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотр.</p><p>Рублевское ш., 135, Москва, 121552.</p></bio><bio xml:lang="en"><p>Junior Researcher. </p><p>Rublevskoe Shosse, 135, Moscow, 121552.</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/0000-0001-7780-2405</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юрпольская</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurpol’skaya</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д. м. н., вед. науч. сотр.</p><p>Рублевское ш., 135, Москва, 121552.</p></bio><bio xml:lang="en"><p> MD, PhD, DSc, Leading Researcher.</p><p>Rublevskoe Shosse, 135, Moscow, 121552.</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/0000-0002-8700-7592</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макаренко</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarenko</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д. м. н., профессор, заведующий рентгенодиагностическим отделом.</p><p>Рублевское ш., 135, Москва, 121552.</p></bio><bio xml:lang="en"><p>MD, PhD, DSc, Professor, Head of X-ray Diagnostic Department.</p><p>Rublevskoe Shosse, 135, Moscow, 121552.</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/0000-0002-6180-2619</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бокерия</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bockeria</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д. м. н., профессор, академик РАН, директор. </p><p>Рублевское ш., 135, Москва, 121552.</p></bio><bio xml:lang="en"><p>MD, PhD, DSc, Professor, Academician of Russian Academy of Sciences, Director.</p><p>Rublevskoe Shosse, 135, Moscow, 121552.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ  «Национальный медицинский исследовательский центр сердечно-сосудистой хирургии им. А.Н. Бакулева» Минздрава России.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bakoulev National Medical Research Center for Cardiovascular Surgery, Ministry of Health of the Russian Federation.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>29</day><month>05</month><year>2018</year></pub-date><volume>99</volume><issue>2</issue><fpage>71</fpage><lpage>78</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дарий О.Ю., Александрова С.А., Березницкий В.С., Юрпольская Л.А., Макаренко В.Н., Бокерия Л.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Дарий О.Ю., Александрова С.А., Березницкий В.С., Юрпольская Л.А., Макаренко В.Н., Бокерия Л.А.</copyright-holder><copyright-holder xml:lang="en">Dariy O.Y., Aleksandrova S.A., Bereznitskiy V.S., Yurpol’skaya L.A., Makarenko V.N., Bockeria L.A.</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/328">https://www.russianradiology.ru/jour/article/view/328</self-uri><abstract><p>Цель исследования – выявить связь показателей времени релаксации миокарда T1, фракции внеклеточного объема (ECV) и очагового фиброза в каждом сегменте миокарда левого желудочка (ЛЖ) с контрактильной функцией ЛЖ у пациентов сгипертрофической кардиомиопатией (ГКМП).</p><sec><title>Материал и методы</title><p>Материал и методы. Проведено диагностическое обследование 30 пациентов с диагнозом ГКМП и 10 пациентов группы контроля без патологии ЛЖ. Магнитно-резонансные исследования сердца осуществлялись на томографе 3Т Philips Achieva TX (Philips, Best, The Netherlands) по специализированному протоколу с использованием 32-канальной кардиальной катушки с синхронизацией с сердечным ритмом и применением гадолинийсодержащих контрастных средств в дозировке 0,3 мл/кг. Т1-картирование миокарда ЛЖ было выполнено с помощью последовательностей MOLLI (Modified Look-Locker Inversion Recovery). Постпроцессорная обработка проводилась на рабочих станциях Philips и CVI42. При обработке данных оценивалось время релаксации Т1 до и после контрастного усиления.</p></sec><sec><title>Результаты</title><p>Результаты. Во всех случаях удалось оценить толщину миокарда, величину фиброза миокарда, показатели времени релаксации миокарда Т1, ECV согласно 16-сегментарной модели АНА. Средний показатель времени релаксации миокарда ЛЖ Т1 до введения контрастного вещества у пациентов с ГКМП был 1317±94 мс – значительно выше показателя, полученного в контрольной группе, – 1093±23,7 мс. Значение ECV в контрольной группе было ниже (24,8±1,9%) такового у пациентов с ГКМП (29,8±4,5%). В унивариабельной группе посегментно каждый показатель имел связь с показателями деформации миокарда – радиальной (Err-FT) и циркулярной (Ecc-FT). Были выявлены средняя положительная корреляция между толщиной миокарда ЛЖ ипоказателем Ecc-FT (r=0,52, p&lt;0,0001), средняя отрицательная корреляция между показателем Err-FT и гипертрофией ЛЖ (r=–0,5, p&lt;0,0001), а также между Err-FT и временем релаксации сердечной мышцы Т1 до контрастного усиления (r=–0,5, p&lt;0,0001).</p></sec><sec><title>Заключение</title><p>Заключение. При проведении картирования миокарда время релаксации сердечной мышцы Т1 до контрастного усиления и значения ECV у пациентов с ГКМП значительно выше соответствующих показателей нормального миокарда. Деформация миокарда ЛЖ у пациентов с ГКМП имеет корреляционную зависимость от изменения времени релаксации миокарда Т1, величины гипертрофии миокарда и в меньшей степени – от очагового фиброза миокарда ЛЖ. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. To determine a correlation of myocardial deformation with myocardial T1-relaxation time during extracellular volume (ECV) fraction mapping and the degree of focal fibrosis in each left ventricular (LV) segment in patients with hypertrophic cardiomyopathy (HCM).</p></sec><sec><title>Material and methods</title><p> Material and methods. A diagnostic test was carried out in 30 patients diagnosed with HCM and in a control group of 10 patients without LV pathology. Cardiac magnetic resonance imaging was performed on a 3.0 T Philips Achieva TX MRI scanner (Philips, Best, the Netherlands) in accordance of the specialized protocol using a 32-channel cardiac coil with heart rate synchronization and the use of gadolinium-based contrast agents at a dose of 0.3 ml/kg. LV T1 mapping was done using the Modified Look-Locker Inversion Recovery (MOLLI) sequences. Postprocessing was performed on Philips and CVI42 workstations. When the data were processed, T1-relaxation time was estimated before and after contrast enhancement.</p></sec><sec><title>Results</title><p>Results. In all cases, myocardial thickness, extent of myocardial fibrosis, myocardial T1-relaxation time parameters, and ECV could be estimated according to the American Heart Association 16-segment coronary artery model. Before injection of contrast agent, the average LV T1 relaxation time in patients with HCM was 1317±94 msec which was significantly higher than that in the control group (1093±23.7 msec). ECV in the control group was lower (24.8±1.9%) than that in the HCM group (29.8±4.5%). In the univariable group, each index was related to myocardial deformation indicators (radial (Err-FT) and circular (Ecc-FT)) at the segment level. There was a moderate positive correlation between LV thickness and Ecc-FT (r=0.52; p&lt;0.0001), a moderate negative correlation between Err-FT and LV hypertrophy (r=–0.5; p&lt;0.0001), and between Err-FT and myocardial T1relaxation time prior to contrast enhancement (r=–0.5; p&lt;0.0001).</p></sec><sec><title>Conclusion</title><p>Conclusion. Myocardial T1 time relaxation mapping before contrast enhancement has detected that ECV in patients with HCM is much higher than in those with the intact myocardium. LV deformation in patients with HCM correlates with changes in myocardial T1 time and the magnitude of myocardial hypertrophy and to a lesser extent with focal LV fibrosis. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитно-резонансная томография</kwd><kwd>гипертрофическая кардиомиопатия</kwd><kwd>Т1-картирование</kwd><kwd>Modified Look-Locker Inversion Recovery</kwd><kwd>деформация миокарда</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetic resonance imaging</kwd><kwd>hypertrophic cardiomyopathy</kwd><kwd>Т1-mapping</kwd><kwd>Modified Look-Locker Inversion Recovery</kwd><kwd>myocardial deformation</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">Hansen M.W., Merchant N. MRI of hypertrophic cardiomyopathy. Part I, MRI appearances. Am. J. Roentgenol. 2007; 189: 1335–43.</mixed-citation><mixed-citation xml:lang="en">Hansen M.W., Merchant N. 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