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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">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2026-4-12-17</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-2895</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>ORIGINAL INVESTIGATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ И МЕТОДИКИ</subject></subj-group></article-categories><title-group><article-title>Assessment of the choroid plexuses volume in radiologically isolated syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка объема хориоидальных сплетений при радиологически изолированном синдроме</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-0266-0596</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Капканец</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kapkanets</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данила Вадимович Капканец</p><p>Кафедра неврологии, нейрохирургии и медицинской генетики </p><p>117997, Москва, ул. Островитянова, 1</p></bio><bio xml:lang="en"><p>Danila Vadimovich Kapkanets</p><p>Department of Neurology, Neurosurgery and Medical Genetics</p><p>1, Ostrovityanova St., Moscow 117997</p></bio><email xlink:type="simple">kkapkanetsdv@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/0000-0002-2975-4151</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойко</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Boyko</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра неврологии, нейрохирургии и медицинской генетики ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России;</p><p>Отдел нейроиммунологии Института клинической неврологии ФГБУ «Федеральный центр мозга и нейротехнологий» ФМБА России</p><p>117997, Москва, ул. Островитянова, 1; </p><p>117997, Москва, ул. Островитянова, 1, стр. 10</p><p> </p></bio><bio xml:lang="en"><p>Department of Neurology, Neurosurgery and Medical Genetics1, N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia, Moscow;</p><p>Department of Neuroimmunology, Institute of Clinical Neurology, Federal Center for Brain and Neurotechnologies, Federal Medical and Biological Agency of Russia</p><p>1, Ostrovityanova St., Moscow 117997, </p><p>1, Ostrovityanova St., Build. 10, Moscow 117997</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3930-5998</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Долгушин</surname><given-names>М. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Dolgushin</surname><given-names>M. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Отдел нейроиммунологии Института клинической неврологии</p><p>117997, Москва, ул. Островитянова, 1, стр. 10</p></bio><bio xml:lang="en"><p>Department of Neuroimmunology, Institute of Clinical Neurology</p><p>1, Ostrovityanova St., Build. 10, Moscow 117997</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/0009-0001-2761-7743</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Отдел нейроиммунологии Института клинической неврологии</p><p>117997, Москва, ул. Островитянова, 1, стр. 10</p></bio><bio xml:lang="en"><p>Department of Neuroimmunology, Institute of Clinical Neurology</p><p>1, Ostrovityanova St., Build. 10, Moscow 117997</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/0009-0005-7367-9311</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Наделяев</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nadelyaev</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Отдел нейроиммунологии Института клинической неврологии</p><p>117997, Москва, ул. Островитянова, 1, стр. 10</p></bio><bio xml:lang="en"><p>Department of Neuroimmunology, Institute of Clinical Neurology</p><p>1, Ostrovityanova St., Build. 10, Moscow 117997</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России;&#13;
ФГБУ «Федеральный центр мозга и нейротехнологий» ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia, Moscow; &#13;
Federal Center for Brain and Neurotechnologies, Federal Medical and Biological Agency of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ «Федеральный центр мозга и нейротехнологий» ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Center for Brain and Neurotechnologies, Federal Medical and Biological Agency of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>18</day><month>08</month><year>2026</year></pub-date><volume>18</volume><issue>4</issue><fpage>12</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kapkanets D.V., Boyko A.N., Dolgushin M.B., Nikitin D.V., Nadelyaev R.V., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Капканец Д.В., Бойко А.Н., Долгушин М.Б., Никитин Д.В., Наделяев Р.В.</copyright-holder><copyright-holder xml:lang="en">Kapkanets D.V., Boyko A.N., Dolgushin M.B., Nikitin D.V., Nadelyaev R.V.</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://nnp.ima-press.net/nnp/article/view/2895">https://nnp.ima-press.net/nnp/article/view/2895</self-uri><abstract><sec><title>Objective</title><p>Objective: to investigate the volume of the choroid plexuses (ChP) in individuals with radiologically isolated syndrome (RIS) and its impact on conversion to multiple sclerosis (MS), and to assess the level of neuroinflammation in individuals with RIS.</p></sec><sec><title>Material and methods</title><p>Material and methods. A prospective observational study was conducted at the Federal Centre for Brain and Neurotechnologies, in which data from two groups of participants were analysed: individuals with RIS (n=32) and healthy volunteers (control group; n=30). The diagnosis of RIS was established in accordance with the 2017 McDonald criteria. All examinations were performed on a single MRI scanner with a magnetic field strength of 1.5 T. MRI morphometry of the cerebellum was performed on T1-weighted images using manual segmentation in the 3D Slicer software. Intracranial volume was determined using the automated web-based volBrain system. Statistical analysis was performed for both the absolute value of the ChP volume and the value normalized to intracranial volume.</p></sec><sec><title>Results</title><p>Results. No statistically significant differences in age or sex were found between the RIS and control groups (p=0.21 and p=0.20, respectively). No differences in age or sex were observed either among individuals with RIS who subsequently converted and those who did not (p=0.67 and p=0.44, respectively). However, in patients with subsequent conversion, the ChP volume was already higher at baseline. The normalized ChP volume was higher in patients with conversion compared with those without conversion (1.435 [1.188; 1.715] mm3 versus 1.003 [0.918; 1.325] mm3; p=0.015), and the absolute ChP volume was also higher in the conversion group (1,878 [1,724; 2,333] versus 1,368 [1,163; 1,770]; p=0.024). According to the results of logistic regression, the normalized ChP volume was a significant predictor of conversion to MS (odds ratio 18.5; 95% CI 1.67–369.6), and the model’s diagnostic performance was satisfactory (AUC=0.78; 95% CI 0.62–0.94; p=0.016).</p></sec><sec><title>Conclusion</title><p>Conclusion. An increase in ChP volume, as measured by MRI morphometry, may be regarded as a non-invasive marker of neuroinflammation in the central nervous system and a potential predictor of disease progression, detectable in the early stages of the pathological process using standard MRI sequences.</p></sec></abstract><trans-abstract xml:lang="ru"><p>Целью данного исследования является изучение объема хориоидальных сплетений (ХС) у лиц с радиологически изолированным синдромом (РИС) и его влияния на конверсию в рассеянный склероз (РС), определение активности нейровоспаления у лиц с РИС.</p><sec><title>Материал и методы</title><p>Материал и методы. На базе ФГБУ «Федеральный центр мозга и нейротехнологий» проводилось проспективное наблюдательное исследование, в котором были проанализированы данные двух групп обследуемых: лиц с РИС (n=32) и здоровых добровольцев (контроль; n=30). Диагноз РИС устанавливался в соответствии с критериями МакДональда 2017 г. Все исследования проводились на одном МР-томографе с мощностью магнитного поля 1,5 Тл. МР-морфометрия ХС выполнялась на Т1-взвешенных изображениях с использованием ручного метода сегментации в программном обеспечении 3D Slicer. Интракраниальный объем определялся с использованием автоматизированной веб-системы volBrain. Статистический анализ рассчитывался как для абсолютного значения объема ХС, так и для значения, нормализованного по внутричерепному объему.</p></sec><sec><title>Результаты</title><p>Результаты. Статистически значимых различий по возрасту и полу между группами РИС и контроля выявлено не было (p=0,21 и p=0,20 соответственно). У лиц с РИС с последующей конверсией и без конверсии различий по возрасту и полу также не отмечено (p=0,67 и p=0,44 соответственно). При этом у пациентов с последующей конверсией объем ХС был выше уже на исходном этапе. Нормализованный объем ХС был выше у пациентов с конверсией по сравнению с пациентами без конверсии (1,435 [1,188; 1,715] против 1,003 [0,918; 1,325]; p=0,015), абсолютный объем ХС также был выше в группе с конверсией (1878 [1724; 2333] мм3 против 1368 [1163; 1770] мм3; p=0,024). По результатам логистической регрессии нормализованный объем ХС являлся значимым предиктором конверсии в РС (отношение шансов 18,5; 95% ДИ 1,67–369,6), диагностическая способность модели была удовлетворительной (AUC=0,78; 95% ДИ 0,62–0,94; p=0,016).</p></sec><sec><title>Заключение</title><p>Заключение. Увеличение объема ХС по данным МР-морфометрии может рассматриваться как неинвазивный маркер нейровоспаления центральной нервной системы и возможный предиктор прогрессирования заболевания, выявляемый на ранних этапах патологического процесса при помощи стандартных МРТ-последовательностей.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рассеянный склероз</kwd><kwd>радиологически изолированный синдром</kwd><kwd>хориоидальные сплетения</kwd><kwd>МР-морфометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiple sclerosis</kwd><kwd>radiologically isolated syndrome</kwd><kwd>choroid plexus</kwd><kwd>MR-morphometry</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">Haki M, Al-Biati HA, Al-Tameemi ZS, et al. Review of multiple sclerosis: Epidemiology, etiology, pathophysiology, and treatment. 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