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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">10.22328/2079-5343-2021-12-3-54-71</article-id><article-id custom-type="elpub" pub-id-type="custom">ldt-636</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>Результаты апробации комплексной экспертной оценки качества КТ-изображений органов грудной клетки, полученных на низкодозовых протоколах сканирования с применением методов итеративных реконструкций</article-title><trans-title-group xml:lang="en"><trans-title>The results of approbation of a comprehensive expert assessment of the quality of CT images of the chest obtained on low-dose scanning protocols using iterative reconstruction methods</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> заведующий кабинетом рентгеновской компьютерной томографии </p><p>197341, Санкт-Петербург, ул. Аккуратова, д. 2 </p></bio><bio xml:lang="en"><p> St. Petersburg </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/0000-0002-5191-7535</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> заведующий лабораторией радиационной гигиены медицинских организаций  Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека</p><p> 197101, Санкт-Петербург, ул. Мира, д. 8</p></bio><bio xml:lang="en"><p> St. Petersburg </p></bio><email xlink:type="simple">vodovatoff@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/0000-0001-9153-3061</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> научный сотрудник Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека</p><p>197101, Санкт-Петербург, ул. Мира, д. 8</p></bio><bio xml:lang="en"><p> St. Petersburg </p></bio><xref ref-type="aff" rid="aff-3"/></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> заведующий кафедрой лучевой диагностики и медицинской визуализации </p><p>197341, СанктПетербург, ул. Аккуратова, д. 2</p></bio><bio xml:lang="en"><p> St. Petersburg </p></bio><email xlink:type="simple">trufanovge@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр имени 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 имени профессора П. В. Рамзаева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg institute of radiation hygiene name after prof. P. V. Ramzaev</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 имени профессора П. В. Рамзаева;&#13;
Российский научный центр радиологии и хирургических технологий имени академика А. М. Гранова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg institute of radiation hygiene name after prof. P. V. Ramzaev;&#13;
A. М. Granov Russian Scientific Center of Radiology and Surgical Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>08</day><month>12</month><year>2021</year></pub-date><volume>12</volume><issue>3</issue><fpage>54</fpage><lpage>71</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Беркович Г.В., Водоватов А.В., Чипига Л.А., Труфанов Г.Е., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Беркович Г.В., Водоватов А.В., Чипига Л.А., Труфанов Г.Е.</copyright-holder><copyright-holder xml:lang="en">Berkovich G.V., Vodovatov A.V., Chipiga L.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/636">https://radiag.bmoc-spb.ru/jour/article/view/636</self-uri><abstract><p>Введение. В связи с тем, что компьютерная томография (КТ) ассоциирована с высокими индивидуальными дозами облучения пациентов, актуальными являются вопросы оптимизации КТ-исследований путем разработки низкодозовых протоколов сканирования.Цель исследования: клиническая апробация низкодозовых протоколов, разработанных авторами ранее, выбор наиболее перспективного протокола, оценка применимости разработанного алгоритма экспертной оценки качества КТ-изображений.Материалы и методы. Обследованы 96 пациентов, перенесших кардиохирургические вмешательства, с подозрением на инфекционные осложнения в легких и/или в зоне оперативного вмешательства. Сканирование проводилось с использованием стандартного, низкодозового и ультранизкодозового протоколов (эффективная доза 3,5±0,9, 1,7±0,1 и 0,8±0,1 мЗв соответственно) с применением двух алгоритмов итеративной реконструкции (IMR и iDose). Проведена оценка качества полученных данных с привлечением 5 врачей-рентгенологов c опытом работы более 5 лет в кардиоторакальной визуализации.Результаты. По числу ошибочных интерпретаций не было получено значимых различий между стандартным и низкодозовым протоколами для всех методов реконструкции. Ультранизкодозовый протокол характеризовался значимо большим количеством пропусков патологических изменений.Заключение. Результаты исследования позволяют рекомендовать низкодозовый протокол в качестве альтернативы стандартному при обследовании пациентов без избыточной массы тела, которым требуется неоднократное проведение КТ-исследований с предпочтительным использованием метода реконструкции IMR.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Сomputed tomography (CT) is associated with high individual patient doses. Hence, the process of optimization in CT examinations by developing low-dose scan protocols is important.Purpose of the study. Clinical approbation of low-dose protocols developed by the authors earlier, selection of the most promising protocol, assessment of the applicability of the developed algorithm for expert assessment of the quality of CT images.Materials and methods. The study was based on the data from 96 patients who underwent cardiac surgery with suspected infection in the lungs or sternal wound infection. CT examinations were performed using standard, low-dose and ultra-low-dose protocols (effective dose 3,5±0,9, 1,7±0,1 and 0,8±0,1 mSv, respectively) using two iterative reconstruction algorithms (IMR and iDose). The quality of the obtained data was assessed by 5 radiologists with more than 5-year experience in chest radiology.Results. In terms of the number of misinterpretations, no significant differences were estimated between the standard and lowdose protocols for all reconstruction methods. The ultra-low-dose protocol was characterized by a significantly higher number of missing lesions compared to other protocols.Conclusion. The developed method of assessment of the CT image quality has proven to be informative and reproducible and can be used to assess new scanning protocols.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компьютерная томография</kwd><kwd>низкодозовая КТ</kwd><kwd>оптимизация</kwd><kwd>итеративные реконструкции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computed tomography</kwd><kwd>low-dose CT</kwd><kwd>ALARA</kwd><kwd>iterative reconstruction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность врачам-рентгенологам отдела лучевой диагностики ФГБУ «НМИЦ им. В. А. Алмазова» Минздрава России, принявшим участие в исследовании.</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">Беркович Г.В., Чипига Л.А., Водоватов А.В., Силин А.Ю., Каратецкий А.А., Труфанов Г.Е. Оптимизация низкодозового протокола сканирования органов грудной клетки в диагностике очагов по типу «матового стекла» с применением алгоритмов итеративных реконструкций // Лучевая диагностика и терапия. 2019. № 4. С. 20–32. doi: 10.22328/2079-5343-2019-10-4-20-32.</mixed-citation><mixed-citation xml:lang="en">Berkovich G.V., Chipiga L.A., Vodovatov A.V., Silin A.Y., Karatetskiy A.A., Trufanov G.E. Optimization of low-dose chest CT protocols for the evaluation of the ground glass nodules using different iterative reconstruction algorithms. Diagnostic radiology and radiotherapy, 2019, Nо. 4, рр. 20–32 (In Russ.). doi: 10.22328/2079-5343-2019-10-4-20-32.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Беркович Г.В., Чипига Л.А., Водоватов А.В., Труфанов Г.Е. Сравнение различных подходов к оценке диагностического качества компьютерной томографии органов грудной клетки // Лучевая диагностика и терапия. 2020. Т. 11, № 3. С. 44–55. doi: 10.22328/2079-5343-2020-11-3-44-55.</mixed-citation><mixed-citation xml:lang="en">Berkovich G.V., Chipiga L.A., Vodovatov A.V., Trufanov G.E. Comparison of different approaches to the diagnostic image quality assessment for the chest computed tomography. Diagnostic radiology and radiotherapy. 2020. Vol. 11, No. 3, рр. 44–55 (In Russ.). doi: 10.22328/2079-5343-2020-11-3-44-55.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">ACR CT аккредитационный фантом для компьютерной томографии. Руководство по эксплуатации. Научно-производственное предприятие «Доза».</mixed-citation><mixed-citation xml:lang="en">ACR CT accreditation phantom. User manual (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Чипига Л.А. Исследование программ автоматической модуляции силы тока для оптимизации протоколов сканирования в компьютерной томографии // Радиационная гигиена. 2019. Т. 12, № 1. С. 104–114.</mixed-citation><mixed-citation xml:lang="en">Chipiga L.A. Evaluation of tube current modulation programms for the optimization of scan protocols in computed tomography. Radiatsionnaya Gygiena = Radiation Hygiene, 2019, Vol. 12, No. 1, рр. 104–114 (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Martin C.J. The importance of radiation quality for optimisation in radiology // Biomed. Imaging. Interv. J. 2007. Vol. 3, No. 2. P. e38.</mixed-citation><mixed-citation xml:lang="en">Martin C.J. The importance of radiation quality for optimisation in radiology // Biomed. Imaging. Interv. J. 2007. Vol. 3, No. 2. P. e38.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kalender W.A. Computed tomography: fundamentals, system technology, image quality, applications. 3rd rev. еd. Weinheim: Wiley-VCH, 2011. 220 p.</mixed-citation><mixed-citation xml:lang="en">Kalender W.A. Computed tomography: fundamentals, system technology, image quality, applications. 3rd rev. еd. Weinheim: Wiley-VCH, 2011. 220 p.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Yu L. et al. Radiation dose reduction in computed tomography: techniques and future perspective // Imaging Med. 2009. Vol. 1, No. 1. Р. 65–84.</mixed-citation><mixed-citation xml:lang="en">Yu L. et al. Radiation dose reduction in computed tomography: techniques and future perspective // Imaging Med. 2009. Vol. 1, No. 1. Р. 65–84.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Quality assurance programme for computed tomography: diagnostic and therapy applications. Vienna: International Atomic Energy Agency, 2012.</mixed-citation><mixed-citation xml:lang="en">Quality assurance programme for computed tomography: diagnostic and therapy applications. Vienna: International Atomic Energy Agency, 2012.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Hyun W.G. CT Radiation Dose Optimization and Estimation: an Update for Radiologists // Korean J. Radiol. 2012. Vol. 13, No. 1. Р. 1–11.</mixed-citation><mixed-citation xml:lang="en">Hyun W.G. CT Radiation Dose Optimization and Estimation: an Update for Radiologists // Korean J. Radiol. 2012. Vol. 13, No. 1. Р. 1–11.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Samei E. et al. Medical Imaging Dose Optimization from Ground up: Expert Opinion of an International Summit // J. Radiol. Prot. 2018. Vol. 38, No. 3. Р. 967–989.</mixed-citation><mixed-citation xml:lang="en">Samei E. et al. Medical Imaging Dose Optimization from Ground up: Expert Opinion of an International Summit // J. Radiol. Prot. 2018. Vol. 38, No. 3. Р. 967–989.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Kim H.J. et al. Ultra-Low-Dose Chest CT in Patients with Neutropenic Fever and Hematologic Malignancy: Image Quality and Its Diagnostic Performance // Cancer Res. Treat. 2014. Vol. 46, No. 4. Р. 393–402. doi: 10.4143/crt.2013.132. Epub 2014 Jul 18. PMID: 25308150; PMCID: PMC4206072.</mixed-citation><mixed-citation xml:lang="en">Kim H.J. et al. Ultra-Low-Dose Chest CT in Patients with Neutropenic Fever and Hematologic Malignancy: Image Quality and Its Diagnostic Performance // Cancer Res. Treat. 2014. Vol. 46, No. 4. Р. 393–402. doi: 10.4143/crt.2013.132. Epub 2014 Jul 18. PMID: 25308150; PMCID: PMC4206072.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Udayasankar U.K. et al. Acute abdominal pain: value of non-contrast enhanced ultra-low-dose multi-detector row CT as a substitute for abdominal radiographs // Emerg. Radiol. 2009. Vol. 16. Р. 61–70 [PubMed] [Google Scholar].</mixed-citation><mixed-citation xml:lang="en">Udayasankar U.K. et al. Acute abdominal pain: value of non-contrast enhanced ultra-low-dose multi-detector row CT as a substitute for abdominal radiographs // Emerg. Radiol. 2009. Vol. 16. Р. 61–70 [PubMed] [Google Scholar].</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang M. et al. Screening for lung cancer using sub-millisievert chest CT with iterative reconstruction algorithm: image quality and nodule detectability // Brit. J. Radiol. 2018. Vol. 91, No 1090. Р. 20170658. doi: 10.1259/bjr.20170658. Epub 2017 Dec 5. PMID: 29120665; PMCID: PMC6350471.</mixed-citation><mixed-citation xml:lang="en">Zhang M. et al. Screening for lung cancer using sub-millisievert chest CT with iterative reconstruction algorithm: image quality and nodule detectability // Brit. J. Radiol. 2018. Vol. 91, No 1090. Р. 20170658. doi: 10.1259/bjr.20170658. Epub 2017 Dec 5. PMID: 29120665; PMCID: PMC6350471.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">National Lung Screening Trial Research Team, Aberle D.R., Berg C.D. et al. The National Lung Screening Trial: overview and study design // Radiology. 2011. Vol. 258. Р. 243Y253.</mixed-citation><mixed-citation xml:lang="en">National Lung Screening Trial Research Team, Aberle D.R., Berg C.D. et al. The National Lung Screening Trial: overview and study design // Radiology. 2011. Vol. 258. Р. 243Y253.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Katsura M. et al. Model-based iterative reconstruction technique for ultralowdose chest CT: comparison of pulmonary nodule detectability with the adaptive statistical iterative reconstruction technique // Invest Radiol. 2013. Vol. 48, No. 4. Р. 206–212. doi: 10.1097/RLI.0b013e31827efc3a. PMID: 23344517.</mixed-citation><mixed-citation xml:lang="en">Katsura M. et al. Model-based iterative reconstruction technique for ultralowdose chest CT: comparison of pulmonary nodule detectability with the adaptive statistical iterative reconstruction technique // Invest Radiol. 2013. Vol. 48, No. 4. Р. 206–212. doi: 10.1097/RLI.0b013e31827efc3a. PMID: 23344517.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">McDermott S., Kalra M.K. Low-Dose Computed Tomography for Lung Cancer Screening: The Protocol and The Dose // Semin Roentgenol. 2017. Vol. 52, No. 3. Р. 132–136. doi: 10.1053/j.ro.2017.06.002. Epub 2017 Jun 3. PMID: 28734394.</mixed-citation><mixed-citation xml:lang="en">McDermott S., Kalra M.K. Low-Dose Computed Tomography for Lung Cancer Screening: The Protocol and The Dose // Semin Roentgenol. 2017. Vol. 52, No. 3. Р. 132–136. doi: 10.1053/j.ro.2017.06.002. Epub 2017 Jun 3. PMID: 28734394.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Larke F.J. et al. Estimated radiation dose associated with low-dose chest CT of average-size participants in the National Lung Screening Trial // AJR Am. J. Roentgenol. 2011. Vol. 197, Nо. 5. Р. 1165–1169. doi: 10.2214/AJR.11.6533. PMID: 22021510.</mixed-citation><mixed-citation xml:lang="en">Larke F.J. et al. Estimated radiation dose associated with low-dose chest CT of average-size participants in the National Lung Screening Trial // AJR Am. J. Roentgenol. 2011. Vol. 197, Nо. 5. Р. 1165–1169. doi: 10.2214/AJR.11.6533. PMID: 22021510.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Bhalla A.S. et al. Imaging protocols for CT chest: A recommendation // Indian J. Radiol Imaging. 2019. Vol. 29, Nо. 3. Р. 236–246. doi: 10.4103/ijri.IJRI_34_19. Epub 2019 Oct 30. PMID: 31741590; PMCID: PMC6857267.</mixed-citation><mixed-citation xml:lang="en">Bhalla A.S. et al. Imaging protocols for CT chest: A recommendation // Indian J. Radiol Imaging. 2019. Vol. 29, Nо. 3. Р. 236–246. doi: 10.4103/ijri.IJRI_34_19. Epub 2019 Oct 30. PMID: 31741590; PMCID: PMC6857267.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
