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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">ldt</journal-id><journal-title-group><journal-title xml:lang="ru">Лучевая диагностика и терапия</journal-title><trans-title-group xml:lang="en"><trans-title>Diagnostic radiology and radiotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5343</issn><publisher><publisher-name>Baltic Medical Education Center</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22328/2079-5343-2019-10-4-20-32</article-id><article-id custom-type="elpub" pub-id-type="custom">ldt-451</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>ЛУЧЕВАЯ ДИАГНОСТИКА: ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DIAGNOSTIC RADIOLOGY: ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Оптимизация низкодозового протокола сканирования органов грудной клетки в диагностике очагов по типу «матового стекла» с применением алгоритмов итеративных реконструкций</article-title><trans-title-group xml:lang="en"><trans-title>Optimization of low-dose chest CT protocols for the evaluation of the ground glass nodules using different iterative reconstruction algorithms</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7077-7320</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беркович</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Berkovich</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Беркович Глеб Владимирович — заведующий кабинетом рентгеновской компьютерной томографии.</p><p>194156, Санкт-Петербург, пр. Пархоменко, д. 15</p></bio><bio xml:lang="en"><p>Gleb V. Berkovich</p></bio><email xlink:type="simple">glebberkovich@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/0000-0001-9153-3061</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чипига</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chipiga</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чипыга Лариса Александровна — научный сотрудник СПбНИИРГ им. проф. П.В. Рамзаева.</p><p>197101, Санкт-Петербург, ул. Мира, д. 8</p></bio><bio xml:lang="en"/><email xlink:type="simple">larisa.chipiga@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/0000-0002-5191-7535</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Водоватов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vodovatov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Водоватов Александр Валерьевич — заведующий лабораторией радиационной гигиены медицинских организаций СПбНИИРГ им. проф. П.В. Рамзаева.</p><p>197101, Санкт-Петербург, ул. Мира, д. 8</p></bio><bio xml:lang="en"/><email xlink:type="simple">vodovatoff@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Силин</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Silin</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Силин Антон Юрьевич — заведующий отделением лучевой диагностики.</p><p>111033, Москва, Волочаевская ул., д. 15, к. 1</p></bio><bio xml:lang="en"><p>Anton Yu. Silin</p><p>Moscow</p></bio><email xlink:type="simple">silin@yamed.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каратецкий</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karatetskiy</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каратецкий Александр Андреевич — врач-рентгенолог кабинета рентгеновской компьютерной томографии.</p><p>194156, Санкт-Петербург, пр. Пархоменко, д. 15</p></bio><bio xml:lang="en"><p>Alexander A. Karatetskiy</p><p>St. Petersburg</p><p> </p></bio><email xlink:type="simple">alexk1sky@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/0000-0002-1611-5000</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Труфанов</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Trufanov</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Труфанов Геннадий Евгеньевич — заведующий кафедрой лучевой диагностики и медицинской визуализации.</p><p>197341, Санкт-Петербург, ул. Аккуратова, д. 2</p></bio><bio xml:lang="en"><p>Gennady E. Trufanov</p><p>St. Petersburg</p></bio><email xlink:type="simple">trufanovge@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр им. В. А. Алмазова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский научно-исследовательский институт радиационной гигиены им. проф. П.В. Рамзаева; Российский научный центр радиологии и хирургических технологий им. акад. А.М. Гранова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg institute of radiation hygiene after prof. P. V. Ramzaev; A М. Granov Russian Scientific Center of Radiology and Surgical Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Санкт-Петербургский научно-исследовательский институт радиационной гигиены им. проф. П.В. Рамзаева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre; St. Petersburg institute of radiation hygiene after prof. P. V. Ramzaev</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Клинический госпиталь на Яузе</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yauza Medical Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр им. В.А. Алмазова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>07</day><month>02</month><year>2020</year></pub-date><volume>0</volume><issue>4</issue><fpage>20</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Беркович Г.В., Чипига Л.А., Водоватов А.В., Силин А.Ю., Каратецкий А.А., Труфанов Г.Е., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Беркович Г.В., Чипига Л.А., Водоватов А.В., Силин А.Ю., Каратецкий А.А., Труфанов Г.Е.</copyright-holder><copyright-holder xml:lang="en">Berkovich G.V., Chipiga L.A., Vodovatov A.V., Silin A.Y., Karatetskiy A.A., Trufanov G.E.</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://radiag.bmoc-spb.ru/jour/article/view/451">https://radiag.bmoc-spb.ru/jour/article/view/451</self-uri><abstract><p>Стремительное развитие методов компьютерной томографии в отечественной радиологической практике приводит к росту как индивидуальных доз пациентов, так и коллективной дозы населения России от данного вида лучевой диагностики. Для успешного проведения мероприятий по снижению доз облучения пациентов необходимо разрабатывать и внедрять в практику методы субъективной (экспертной) оценки качества изображения. В данной работе представлена комплексная методика оценки качества КТ-изображений на примере диагностики очагов по типу «матового стекла» с использованием антропоморфного фантома органов грудной клетки и разработанных имитаторов очагов. Методика экспертной оценки включает в себя необходимость локализовать патологический очаг на серии КТ-сканов и оценить качество изображения по пятибалльной шкале Лайкерта в соответствии с представленными критериями. Методика была апробирована при определении потенциальных низкодозовых протоколов сканирования органов грудной клетки с использованием различных алгоритмов реконструкции. Результаты опроса десяти врачей-рентгенологов (экспертов) показали возможность существенного (вплоть до четырех раз) снижения эффективных доз пациентов за счет снижения экспозиции при проведении КТ-сканирования органов грудной клетки в выявлении очагов по типу «матового стекла» без значимого снижения качества изображения. При этом наилучшие результаты соответствовали использованию алгоритма модельных итеративных реконструкций. Результаты исследования будут использованы для клинической апробации на пациентах.</p></abstract><trans-abstract xml:lang="en"><p>Rapid development and implementation of the computed tomography (CT) in the Russian radiological practice reads to the significant increase in both the individual patient doses and collective dose of the Russian population from computed tomography.</p><p>For the successful implementation of the optimization and dose reduction techniques it is necessary to develop and implement the methods of subjective (expert) image quality assessment. The current study was focused on the development of the composite method of the CT image quality assessment using an anthropomorphic chest phantom and imitators of the nodules for the detection of the ground-glass nodules. The method includes the detection of the nodules on the CT scan series as well as the assessment of the quality of the images using 5-grade Likert scale corresponding to the designed criteria. The method was evaluated for the development of the preliminary low-dose chest CT protocols using different reconstruction algorithms. The results of the study were based on the expert opinion of ten radiologists. They indicate the possibility of the significant (up to a factor of four) reduction of the effective doses of the patients related to the reduction of mAs for the CT scans of the chest for the detection of ground-glass nodules without a reduction in image quality. The best results corresponded to the algorithm of the model iterative reconstructions. Results of the study would be further evaluated on patients within a dedicated clinical trial.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компьютерная томография</kwd><kwd>оптимизация</kwd><kwd>оценка качества</kwd><kwd>низкодозовое сканирование</kwd><kwd>итеративные реконструкции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computed tomography</kwd><kwd>optimization</kwd><kwd>quality assessment</kwd><kwd>low-dose CT</kwd><kwd>iterative reconstruction</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">Онищенко Г.Г., Попова А.Ю., Романович И.К., Водоватов А.В., Башкетова Н.С., Историк О.А., Чипига Л.А., Шацкий И.Г, Репин Л.В., Библин А.М. Современные принципы обеспечения радиационной безопасности при использовании источников ионизирующего излучения в медицине. Часть 1. 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