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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Terapevticheskii arkhiv</journal-id><journal-title-group><journal-title xml:lang="en">Terapevticheskii arkhiv</journal-title><trans-title-group xml:lang="ru"><trans-title>Терапевтический архив</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0040-3660</issn><issn publication-format="electronic">2309-5342</issn><publisher><publisher-name xml:lang="en">LLC Obyedinennaya Redaktsiya</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">108235</article-id><article-id pub-id-type="doi">10.26442/00403660.2022.04.201461</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Myocardial scintigraphy with <sup>99m</sup>Tc-pyrophosphate in the diagnosis of cardiac amyloidosis: place in the diagnostic algorithm, features of the implementation and interpretation of the study</article-title><trans-title-group xml:lang="ru"><trans-title>Сцинтиграфия миокарда с <sup>99m</sup>Tc-пирофосфатом в диагностике амилоидоза сердца: место в диагностическом алгоритме, особенности выполнения и интерпретации исследования</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2675-3276</contrib-id><name-alternatives><name xml:lang="en"><surname>Ansheles</surname><given-names>Alexey A.</given-names></name><name xml:lang="ru"><surname>Аншелес</surname><given-names>Алексей Аркадьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, ст. науч. сотр. отд. радионуклидной диагностики и позитронно-эмиссионной томографии</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0920-7417</contrib-id><name-alternatives><name xml:lang="en"><surname>Nasonova</surname><given-names>Svetlana N.</given-names></name><name xml:lang="ru"><surname>Насонова</surname><given-names>Светлана Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>канд. мед. наук, ст. науч. сотр. отд. заболеваний миокарда и сердечной недостаточности</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4066-2661</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhirov</surname><given-names>Igor V.</given-names></name><name xml:lang="ru"><surname>Жиров</surname><given-names>Игорь Витальевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, вед. науч. сотр. отд. заболеваний миокарда и сердечной недостаточности</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3233-1862</contrib-id><name-alternatives><name xml:lang="en"><surname>Saidova</surname><given-names>Marina A.</given-names></name><name xml:lang="ru"><surname>Саидова</surname><given-names>Марина Абдулатиповна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., рук. отд. ультразвуковых методов исследования</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8377-2388</contrib-id><name-alternatives><name xml:lang="en"><surname>Stukalova</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Стукалова</surname><given-names>Ольга Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>канд. мед. наук, ст. науч. сотр. отд. томографии</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9234-6129</contrib-id><name-alternatives><name xml:lang="en"><surname>Tereshchenko</surname><given-names>Sergey N.</given-names></name><name xml:lang="ru"><surname>Терещенко</surname><given-names>Сергей Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., рук. отд. заболеваний миокарда и сердечной недостаточности</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0487-6902</contrib-id><name-alternatives><name xml:lang="en"><surname>Sergienko</surname><given-names>Vladimir B.</given-names></name><name xml:lang="ru"><surname>Сергиенко</surname><given-names>Владимир Борисович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., рук. отд. радионуклидной диагностики и позитронно-эмиссионной томографии</p></bio><email>a.ansheles@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Chazov National Medical Research Center of Cardiology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр кардиологии им. акад. Е.И. Чазова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-05-26" publication-format="electronic"><day>26</day><month>05</month><year>2022</year></pub-date><volume>94</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>530</fpage><lpage>537</lpage><history><date date-type="received" iso-8601-date="2022-05-25"><day>25</day><month>05</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-05-25"><day>25</day><month>05</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Consilium Medicum</copyright-holder><copyright-holder xml:lang="ru">ООО "Консилиум Медикум"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ter-arkhiv.ru/0040-3660/article/view/108235">https://ter-arkhiv.ru/0040-3660/article/view/108235</self-uri><abstract xml:lang="en"><p>The article summarizes the current experience of the nuclear medicine department of the Chazov National Medical Research Center of Cardiology in the implementation of myocardium scintigraphy with <sup>99m</sup>Tc-pyrophosphate with the differential diagnosis of the types of cardiac amyloidosis. Causes of false-positive, equivocal and non-diagnostic results, are analyzed. Possible ways to eliminate mistakes, including by modifying protocols of planar and tomographic research and optimizing the whole diagnostic algorithm for amyloidosis of the heart, are discussed.</p></abstract><trans-abstract xml:lang="ru"><p>В статье суммируется текущий опыт отдела радионуклидной диагностики и позитронно-эмиссионной томографии ФГБУ «НМИЦ кардиологии им. акад. Е.И. Чазова» в выполнении сцинтиграфии миокарда с <sup>99m</sup>Tc-пирофосфатом при дифференциальной диагностике типов амилоидоза сердца. Проанализированы возможные причины ложноположительных, сомнительных и недиагностических результатов исследования, предложены способы их устранения, в том числе путем модификации протоколов планарного и томографического исследований и оптимизации диагностического алгоритма амилоидоза сердца в целом.</p></trans-abstract><kwd-group xml:lang="en"><kwd>myocardial scintigraphy</kwd><kwd>cardiac amyloidosis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сцинтиграфия миокарда</kwd><kwd>амилоидоз сердца</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Siddiqi OK, Ruberg FL. Cardiac amyloidosis: An update on pathophysiology, diagnosis, and treatment. Trends Cardiovasc Med. 2018;28(1):10-21. DOI:10.1016/j.tcm.2017.07.004</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Donnelly JP, Hanna M. Cardiac amyloidosis: An update on diagnosis and treatment. Cleve Clin J Med. 2017;84(12 Suppl. 3):12-26. 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