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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">urovest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник урологии</journal-title><trans-title-group xml:lang="en"><trans-title>Urology Herald</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2308-6424</issn><publisher><publisher-name>Rostov State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21886/2308-6424-2021-9-3-19-24</article-id><article-id custom-type="elpub" pub-id-type="custom">urovest-468</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 ARTICLES</subject></subj-group></article-categories><title-group><article-title>Трёхмерная реконструкция расширенной полостной системы почки по нативной компьютерной томографии</article-title><trans-title-group xml:lang="en"><trans-title>The three-dimensional reconstruction of the dilated renal pelvicalyceal system by non-enhanced computed tomography</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2359-6973</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гулиев</surname><given-names>Б. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Guliev</surname><given-names>B. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бахман Гидаятович Гулиев – д.м.н., профессор; профессор кафедры урологии ФГБОУ ВО СЗГМУ им. И. И. Мечникова Минздрава России; руководитель центра урологии с робот-ассистированной хирургией Мариинской больницы</p><p>191015, г. Санкт-Петербург, ул. Кирочная, д. 41</p><p>191014, г. Санкт-Петербург, пр-т Литейный, д. 56</p><p>тел.: +7 (921) 945-34-80</p></bio><bio xml:lang="en"><p>Bakhman G. Guliev – M.D., Dr. Sc. (M), Full Prof.; Prof., Dept. of Urology, Mechnikov North-West State Medical University; Head, Urology Centre with Robot-assisted Surgery</p><p>191015, St. Petersburg, 41 Kirochnaya st.</p><p>191014, St. Petersburg, 56 Liteiny ave.</p><p>tel.: +7 (921) 945-34-80</p></bio><email xlink:type="simple">gulievbg@mail.ru191015</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8606-9791</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комяков</surname><given-names>Б. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Komyakov</surname><given-names>B. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борис Кириллович Комяков – д.м.н., профессор; заведующий кафедрой урологии</p><p>191015, г. Санкт-Петербург, ул. Кирочная, д. 41</p></bio><bio xml:lang="en"><p>Boris K. Komyakov – M.D., Dr. Sc. (M), Full Prof.; Head, Dept. of Urology</p><p>191015, St. Petersburg, 41 Kirochnaya st.</p></bio><email xlink:type="simple">komyakovbk@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3521-8937</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Талышинский</surname><given-names>А. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Talyshinskiy</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Талышинский Али Эльманович – клинический ординатор кафедры урологии</p><p>191015, г. Санкт-Петербург, ул. Кирочная, д. 41</p></bio><bio xml:lang="en"><p>Ali E. Talyshinskiy – Postgraduate student; Dept. of Urology</p><p>191015, St. Petersburg, 41 Kirochnaya st.</p></bio><email xlink:type="simple">ali-ma@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Северо-Западный государственный медицинский университет им. И. И. Мечникова» Минздрава России; Центр урологии с робот-ассистированной хирургией Мариинской больницы</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mechnikov North-Western State Medical University; Urology Centre with Robot-assisted Surgery, St. Petersburg Mariinsky Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Северо-Западный государственный медицинский университет им. И. И. Мечникова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mechnikov North-Western State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>04</day><month>10</month><year>2021</year></pub-date><volume>9</volume><issue>3</issue><fpage>19</fpage><lpage>24</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гулиев Б.Г., Комяков Б.К., Талышинский А.Э., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Гулиев Б.Г., Комяков Б.К., Талышинский А.Э.</copyright-holder><copyright-holder xml:lang="en">Guliev B.G., Komyakov B.K., Talyshinskiy A.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://www.urovest.ru/jour/article/view/468">https://www.urovest.ru/jour/article/view/468</self-uri><abstract><sec><title>Введение</title><p>Введение. Трёхмерная реконструкция чашечно-лоханочной системы (ЧЛС) почки возможна при проведении компьютерной томографии (КТ) с урографией. Однако использование контрастного вещества имеет свои ограничения, такие как аллергия на препарат и хроническая болезнь почек (ХБП).</p></sec><sec><title>Цель исследования</title><p>Цель исследования. Описание методики полуавтономного выделения ЧЛС на изображениях нативной КТ с её последующей 3D-реконструкцией при обструкции верхних мочевых путей (ВМП).</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. С апреля 2021 по май 2021 года было отобрано 5 пациентов с диагнозом почечная колика, которым выполняли КТ-урографию. Далее с помощью программы Medical Imaging Interaction Toolkit (MITK) и дополнительного алгоритма вручную на каждом нативном срезе отмечали три точки в пределах ЧЛС для определения её границ и построения 3D-модели. Для оценки точности реконструкции проводили сравнение объёма получаемых виртуальных моделей с объёмом контрастной реконструкции. Пять урологов оценивали информативность таких реконструкций для изучения анатомии ЧЛС конкретного пациента. Полученные модели были также проанализированы программистами для пригодности к 3D-печати.</p></sec><sec><title>Результаты</title><p>Результаты. Средняя площадь поверхности контрастных и бесконтрастных моделей составила 3291 мм2 и 2879 мм2. При сравнении контрастных и бесконтрастных 3D моделей, а также оценке последних для предоперационного планирования и их рентабельности средний балл урологов составил 4,5 из 5,0. Инженеры подтвердили пригодность бесконтрастных моделей для их трёхмерной печати.</p></sec><sec><title>Выводы</title><p>Выводы. Описанная полуавтономная реконструкция полостной системы почки по бесконтрастным КТ-снимкам позволяет за короткий промежуток времени реконструировать её 3D-вид у пациентов с обструкцией ВМП.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The three-dimensional reconstruction of the renal pelvicalyceal system (PCS) is possible when performing enhanced computed tomography (CT). However, the use of a contrast agent has its limitations associated with the presence of allergy and chronic kidney disease.</p></sec><sec><title>Purpose of the study</title><p>Purpose of the study. To describe the method of semi-autonomous three-dimensional (3D) reconstruction of the PCS based on non-enhanced CT images of patients with upper urinary tract obstruction.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Five patients diagnosed with renal colic were recruited from April-May 2021. All patients underwent CT-urography after informed consent. Medical Imaging Interaction Toolkit program (MITK) expanded with explainable update were used for 3D-reconstruction of PCS via excretory and native phases. To assess the accuracy of the latter, both contrast and non-contrast models were compared regarding their surface area. Also, the PCS of one patient was used to reconstruct virtual endoscopic views based on enhanced and non-enhanced models. Five urologists estimated their similarity and potential use of non-enhanced models for the interventional planning via a Likert scale questionnaire. The resulting models were also analyzed by programmer-engineers to test their suitability for 3D-printing.</p></sec><sec><title>Results</title><p>Results. The average surface area of enhanced and non-enhanced models was 3291 mm2 and 2879 mm2, respectively. Obtained models were suitable for their intraluminal reconstruction and potential 3D-printing. Analyzed properties of non-enhanced models were estimated at 4.5 out of 5.0.</p></sec><sec><title>Conclusion</title><p>Conclusion. The described semi-autonomous reconstruction of the renal PCS based on non-enhanced CT images allows for a short time to reconstruct its 3D-view in patients with the upper urinary tract obstruction.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>почка</kwd><kwd>трёхмерная реконструкция</kwd><kwd>полость почки</kwd><kwd>нативная КТ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>kidney</kwd><kwd>3D-reconstruction</kwd><kwd>pelvicalyceal system</kwd><kwd>non-enhanced CT</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">Brisbane W, Bailey MR, Sorensen MD. An overview of kidney stone imaging techniques. Nat Rev Urol. 2016;13(11):654-62. 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