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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">donstu</journal-id><journal-title-group><journal-title xml:lang="en">Advanced Engineering Research (Rostov-on-Don)</journal-title><trans-title-group xml:lang="ru"><trans-title>Advanced Engineering Research (Rostov-on-Don)</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2687-1653</issn><publisher><publisher-name>Don State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.23947/2687-1653-2023-23-3-307-316</article-id><article-id custom-type="elpub" pub-id-type="custom">donstu-2078</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="en"><subject>INFORMATION TECHNOLOGY, COMPUTER SCIENCE AND MANAGEMENT</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ИНФОРМАТИКА, ВЫЧИСЛИТЕЛЬНАЯ ТЕХНИКА И УПРАВЛЕНИЕ</subject></subj-group></article-categories><title-group><article-title>Sensitivity of Diffusion-Weighted Image Combined with T2 Turbo Inversion Recovery Magnitude Sequence and as an Alternative to Contrast-Enhanced MRI in the Detection of Perianal Fistula</article-title><trans-title-group xml:lang="ru"><trans-title>Чувствительность диффузионно-взвешенного изображения в сочетании с последовательностью восстановления турбо-инверсии T2 в качестве альтернативы МРТ с контрастным усилением при обнаружении параректального свища</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Baqir</surname><given-names>Noor Fadhil</given-names></name><name name-style="western" xml:lang="en"><surname>Baqir</surname><given-names>Noor Fadhil</given-names></name></name-alternatives><bio xml:lang="ru"><p>Noor Fadhil Baqir, Бакалавр наук (радиологическая инженерия), Колледж медицины и оздоровительных технологий Среднего технического университета, технолог МРТ в Учебной онкологической больнице в Медицинском городке</p><p>Muasker, Al Rashid Street, Baghdad, Iraq</p></bio><bio xml:lang="en"><p>Noor Fadhil Baqir, BSc. (Radiological Engineering), College of Medical and Health Techniques, Middle Technical University, MRI technologist, Oncology Teaching Hospital in Medical City</p><p>Muasker, Al Rashid Street, Baghdad</p></bio><email xlink:type="simple">lavendrtechnologist2017@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/0000-0003-3915-697X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ahmed</surname><given-names>Rasha Sabeeh</given-names></name><name name-style="western" xml:lang="en"><surname>Ahmed</surname><given-names>Rasha Sabeeh</given-names></name></name-alternatives><bio xml:lang="ru"><p>Rasha Sabeeh Ahmed, Бакалавр наук (физика), Магистр наук (атомная физика), Университет Мустансирия, Доктор философии (ядерная физика), Багдадский университет, Профессор кафедры физиологии и медицинской физики в Медицинском колледже Университета Аль-Нахрейн</p><p>Al-Jadria, Baghdad, 10072</p></bio><bio xml:lang="en"><p>Rasha Sabeeh Ahmed, BSc. (Physics), M.Sc. (Atomic Physics), Mustansiriyah University, Ph.D. (Nuclear Physics), Baghdad University, Professor at Physiology and Medical Physics Department, College of Medicine, Al-Nahrain University</p><p>Al-Jadria, Baghdad, 10072</p></bio><email xlink:type="simple">rasha.sabeehahmed@colmed-alnahrain.edu.iq</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Mohsen</surname><given-names>Khaleel Ibraheem</given-names></name><name name-style="western" xml:lang="en"><surname>Mohsen</surname><given-names>Khaleel Ibraheem</given-names></name></name-alternatives><bio xml:lang="ru"><p>Khaleel Ibraheem Mohsen, доктор медицинских наук, доцент кафедры радиологии, руководитель клинического отделения Национального центра исследования рака</p><p>Al-Jadria, Baghdad, 10072</p></bio><bio xml:lang="en"><p>Khaleel Ibraheem Mohsen, MD, Assistant Professor of the Radiology Department, Head of Clinical Department, National Cancer Research Center, University of Baghdad</p><p>Al-Jadria, Baghdad, 10072</p></bio><email xlink:type="simple">khalelcabm@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Медицинский колледж, Университет Аль-Нахрейн</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>College of Medicine, Al-Nahrain University</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный онкологический центр, Багдадский университет</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>National Cancer Research Center, University of Baghdad</institution><country>Iraq</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>29</day><month>09</month><year>2023</year></pub-date><volume>23</volume><issue>3</issue><fpage>307</fpage><lpage>316</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Baqir N.F., Ahmed R.S., Mohsen K.I., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Baqir N.F., Ahmed R.S., Mohsen K.I.</copyright-holder><copyright-holder xml:lang="en">Baqir N.F., Ahmed R.S., Mohsen K.I.</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.vestnik-donstu.ru/jour/article/view/2078">https://www.vestnik-donstu.ru/jour/article/view/2078</self-uri><abstract><sec><title>Introduction</title><p>Introduction. Perianal fistula rapidly develops an abscess, requiring surgical decompression. However, simple cases must be managed. However, for patients with renal insufficiency, MRI with contrast is contraindicated. It is proposed to use diffusion-weighted images that can diagnose anal fistulae, showing areas of high signal intensity (inflammatory tissues). The aim is to determine sensitivity of diffusion-weighted image combined with T2 turbo inversion recovery magnitude and as an alternative technique to contrast-enhanced MRI using clinical examination as a reference.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Study included fifty patients with a clinical diagnosis of perianal fistula. MRI sequences were T2 turbo inversion recovery magnitude in oblique coronal and axial planes, diffusion-weighted image, and T1 weighted image turbo spin echo (fat suppression) pre- and post-administration of contrast agents in oblique axial planes. Three radiologists evaluated the MR imaging data using a questionnaire of parameters that necessitated a binary response, “yes” or “no” answer.</p></sec><sec><title>Results</title><p>Results. Diffusion-weighted image combined with axial T2 turbo inversion recovery magnitude sequence had 96.7 %. All  raters  agreed  that  it  is  sensitive  enough  to  correctly  identify  perianal  fistula  with  a  moderate  Kappa  agreement (k = 0.586)  and  p-value&lt;0.001.  The  mean  value  of  rater's  responses  was  76.7 %  represents  sensitivity  of  diffusion-weighted  images  + T2  turbo inversion recovery  magnitude  as  an  alternative  technique  to  T1-enhanced  contrast  with moderate (k = 0.553) agreement between raters and P-value&lt;0.001.</p><p>Discussion and Conclusion. Diffusion-weighted images and T2 turbo inversion recovery magnitude sequences exhibit comparable efficacy to T1-enhanced contrast sequences in detecting perianal fistula. This may be an option for patients with renal impairment who cannot receive an MRI contrast.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Введение</title><p>Введение. Параректальный свищ быстро переходит в абсцесс, требующий хирургической декомпрессии. Тем не менее,  простые  случаи  подлежат  лечению.  Однако,  для  пациентов  с  почечной  недостаточностью  МРТ  с контрастированием  противопоказана.  Предлагается  применение  диффузионно-взвешенного  изображения, которое способно диагностировать анальные свищи, показывая на снимках области с высокой интенсивностью сигнала  (очаг  воспаления). Цель  работы  заключается  в  том,  чтобы  определить  степень  чувствительности изображения диффузионной спектральной томографии в сочетании с величиной восстановления турбо-инверсии T2  и  возможность  применения  данного  метода  в  качестве  альтернативного  метода  МРТ  с  контрастным усилением, используя клиническое обследование в качестве стандарта сравнения.</p></sec><sec><title>Материалы  и  методы</title><p>Материалы  и  методы.  В  ходе  работы  были  обследованы  50  пациентов  с  клиническим  диагнозом «параректальный  свищ».  Последовательности  МРТ  представляли  собой  турбо-инверсию  T2  с  величиной восстановления в косых коронарных и аксиальных плоскостях, изображение диффузионной МРТ и взвешенное изображение быстрого спин-эха (жироподавление) до и после введения контрастных веществ в косые аксиальные плоскости.  Три  радиолога  оценили  данные  МРТ,  используя  анкету  параметров,  которая  требовала  бинарного ответа, ответа «да» или «нет».</p></sec><sec><title>Результаты исследования</title><p>Результаты исследования.  Диффузионно-взвешенное  изображение  в  сочетании  с  последовательностью восстановления аксиальной турбо-инверсии T2 показало 96,7 %. Все эксперты согласились с тем, что данный метод, показавший умеренное согласие Каппа (k = 0,586) и значение p&lt;0,001, достаточно чувствителен для того, чтобы верно идентифицировать параректальный свищ. Среднее значение экспертной оценки составило 76,7 %. Это  подтверждает,  что  чувствительность  предложенного  метода  –  диффузионно-взвешенные  изображения  + величина  восстановления  турбо-инверсии  T2  —  является  альтернативой  методу  контрастного  усиления  T1  с умеренным (k = 0,553) согласием между экспертами и значением P&lt;0,001.</p></sec><sec><title>Обсуждение и  заключение</title><p>Обсуждение и  заключение.  Диффузионно-взвешенные  изображения  и  последовательности  величин восстановления  при  турбо-инверсии  T2  демонстрируют  сравнимую  эффективность  с  последовательностями контрастного  усиления  T1  для  обнаружения  параректального  свища.  Предложенный  метод  может  служить вариантом для пациентов с почечной недостаточностью, которым противопоказана МРТ с контрастированием.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитно-резонансная томография</kwd><kwd>диффузионно-взвешенное изображение</kwd><kwd>контрастное усиление T1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetic resonance imaging</kwd><kwd>diffusion-weighted image</kwd><kwd>T1-enhanced contrast</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы благодарят редакцию и рецензентов за внимательное отношение к статье и за указанные замечания, позволившие улучшить качество статьи.</funding-statement><funding-statement xml:lang="en">The authors would like to thank the Editorial board and the reviewers for their attentive attitude to the article and for the specified comments that improved the quality of the article.</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">Cattapan K, Chulroek T, Kordbacheh H, Wancharoenrung D, Harisinghani M. 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