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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">medvis</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская визуализация</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Visualization</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-0763</issn><issn pub-type="epub">2408-9516</issn><publisher><publisher-name>RDS-Media Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">medvis-93</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>БРЮШНАЯ ПОЛОСТЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABDOMEN</subject></subj-group></article-categories><title-group><article-title>Количественный анализ диффузионно-взвешенных изображений очаговых поражений печени. Какой показатель наиболее полезен в дифференциальной диагностике?</article-title><trans-title-group xml:lang="en"><trans-title>Quantitative Analysis of Diffusion-Weighted Imaging of Focal Liver Lesions. Which Parameter is More Useful in the Differential Diagnosis?</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>Ломовцева</surname><given-names>Карина Хусаиновна</given-names></name><name name-style="western" xml:lang="en"><surname>Lomovtseva</surname><given-names>Karina Khusainovna</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</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>Карельская</surname><given-names>Наталья Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Karelskaya</surname><given-names>Natalya Aleksandrovna</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кармазановский</surname><given-names>Григорий Григорьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Karmazanovsky</surname><given-names>Grigory Grigorievich</given-names></name></name-alternatives><email xlink:type="simple">karmazanovsky@ixv.ru</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>Вишневский</surname><given-names>Владимир Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Vishnevsky</surname><given-names>Vladimir Aleksandrovich</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ГБОУ ВПО “Первый Московский государственный медицинский университет им. И.М. Сеченова” Министерства здравоохранения России<country>Россия</country></aff><aff xml:lang="en">I.M. Sechenov 1st MSMU<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБУ “Институт хирургии им. А.В. Вишневского” Министерства здравоохранения России<country>Россия</country></aff><aff xml:lang="en">A.V. Vishnevsky Institute of Surgery<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">ГБОУ ВПО “Первый Московский государственный медицинский университет им. И.М. Сеченова” Министерства здравоохранения России; ФГБУ “Институт хирургии им. А.В. Вишневского” Министерства здравоохранения России<country>Россия</country></aff><aff xml:lang="en">I.M. Sechenov 1st MSMU; A.V. Vishnevsky Institute of Surgery<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>28</day><month>10</month><year>2014</year></pub-date><volume>0</volume><issue>5</issue><fpage>20</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ломовцева К.Х., Карельская Н.А., Кармазановский Г.Г., Вишневский В.А., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Ломовцева К.Х., Карельская Н.А., Кармазановский Г.Г., Вишневский В.А.</copyright-holder><copyright-holder xml:lang="en">Lomovtseva K.K., Karelskaya N.A., Karmazanovsky G.G., Vishnevsky V.A.</copyright-holder><license 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://medvis.vidar.ru/jour/article/view/93">https://medvis.vidar.ru/jour/article/view/93</self-uri><abstract><p>Цель исследования: определить наиболее полезный количественный параметр диффузионно-взвешенных изображений (ДВИ) в дифференциальной диагностике очаговых поражений печени. Материал и методы. Проанализированы ДВИ 69 пациентов с 192 очаговыми образованиями печени (145 злокачественных и 47 доброкачественных образований). ДВИ получали с использованием трех значений фактора b (0, 300, 600 с/мм2) на высокопольном магнитно-резонансном томографе (3 Тл). Определяли значения измеряемого коэффициента диффузии (ИКД) очага, разность (рИКД) и отношение (оИКД) между ИКД очага и ИКД паренхимы печени, селезенки, левой почки, поджелудочной железы, тела позвонка, мышц спины. Посредством анализа ROC-кривых находили показатели, имеющие большую диагностическую возможность в дифференцировании злокачественных и доброкачественных образований, с последующим определением их пороговых значений. Результаты. Среднее значение ИКД доброкачественных образований составило (2,346 ± 0,683) • 10-3 мм2/с, злокачественных - (1,109 ± 0,383) • 10-3 мм2/с. Среди всех вычисленных параметров большей диагности ческой возможностью обладали рИКД(очаг-печень) и оИКД(очаг/печень). Среднее значение рИКД(очаг-печень) для доброкачественных образований составило (0,989 ± 0,657) • 10-3 мм2/с, для злокачественных (-0,257 ± 0,333) • 10-3 мм2/с, среднее значение оИКД(очаг/печень) - 1,729 ± 0,528 и 0,819 ± 0,250 соответственно. Выводы. Наиболее полезными количественными параметрами ДВИ в дифференциальной диагностике очаговых поражений печени являются рИКД(очаг-печень) и оИКД(очаг/печень).</p></abstract><trans-abstract xml:lang="en"><p>Purpose: to determine the most useful quantitative parameter of diffusion-weighted images (DWI) in the differential diagnosis of focal liver lesions. Material and methods. DWI of 69 patients with 192 focal liver lesions (145 malignant and 47 benign) were evaluated. DWI was performed with b 0, b 300, b 600 gradients at MRI 3 T. Apparent diffusion coefficient (ADC) of lesion, liver, spleen, left kidney, body of pancreas, vertebral body, back muscle were calculated. The ratio (rADC) and difference (dADC) between ADC lesion and ADC other anatomical structures were calculated. The ROC analyses were performed in order to find more useful parameters in the differentiation of malignant and benign tumors, and to determine cut-off of them. Results. Mean ADC values of benign lesions were 2.346 ± 0.683 • 10-3 mm2/s, malignant 1.109 ± 0.383 • 10-3 mm2/s. More useful parameters were dADC(lesion-liver), rADC(lesion/liver). The mean dADC(lesion-liver) for benign and malignant tumors was (0.989 ± 0.657) • 10-3 mm2/s, (-0.257 ± 0.333) • 10-3 mm2/s, respectively. The mean rADC(lesion/liver) for benign tumors was 1.729 ± 0.528, for malignant 0.819 ± 0.250. Conclusion. dADC(lesion-liver) and rADC(lesion/liver) are more useful in the differential diagnosis of focal liver lesions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>диффузионно-взвешенные изображения</kwd><kwd>печень</kwd><kwd>измеряемый коэффициент диффузии</kwd><kwd>характеристика очаговых поражений</kwd><kwd>дифференциальная диагностика</kwd><kwd>diffusion-weighted imaging</kwd><kwd>liver</kwd><kwd>apparent diffusion coefficient</kwd><kwd>characteristic of focal lesions</kwd><kwd>differential diagnosis</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">Kele P.G., van der Jagt E.J. Diffusion weighted imaging in the liver. Wld J. Gastroenterol. 2010; 16 (13): 1567-1576.</mixed-citation><mixed-citation xml:lang="en">Kele P.G., van der Jagt E.J. Diffusion weighted imaging in the liver. Wld J. 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