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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Annals of Clinical and Experimental Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Annals of Clinical and Experimental Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Анналы клинической и экспериментальной неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-5473</issn><issn publication-format="electronic">2409-2533</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">360</article-id><article-id pub-id-type="doi">10.17816/psaic360</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Cerebral perfusion in the acute ischemic stroke: clinical and CT-perfusion assessment</article-title><trans-title-group xml:lang="ru"><trans-title>Мозговой кровоток в острейшем периоде полушарного ишемического инсульта: клинический и КТ-перфузионный анализ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9130-1292</contrib-id><name-alternatives><name xml:lang="en"><surname>Sergeev</surname><given-names>Dmitry V.</given-names></name><name xml:lang="ru"><surname>Сергеев</surname><given-names>Дмитрий Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), neurologist, Neurorehabilitation department with TMS group</p></bio><bio xml:lang="ru"><p>к.м.н., врач-невролог отд. анестезиологии-реанимации с палатами реанимации и интенсивной терапии</p></bio><email>Mpi711@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3820-4554</contrib-id><name-alternatives><name xml:lang="en"><surname>Krotenkova</surname><given-names>Marina V.</given-names></name><name xml:lang="ru"><surname>Кротенкова</surname><given-names>Марина Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Head, Radiology department</p></bio><bio xml:lang="ru"><p>д.м.н., зав. отд. нейровизуализации</p></bio><email>Mpi711@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6338-0392</contrib-id><name-alternatives><name xml:lang="en"><surname>Piradov</surname><given-names>Michael A.</given-names></name><name xml:lang="ru"><surname>Пирадов</surname><given-names>Михаил Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Professor, Academician of RAS, Director</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, академик РАН, директор</p></bio><email>Mpi711@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Center of Neurology</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Научный центр неврологии»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2009-12-14" publication-format="electronic"><day>14</day><month>12</month><year>2009</year></pub-date><volume>3</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>19</fpage><lpage>28</lpage><history><date date-type="received" iso-8601-date="2017-02-06"><day>06</day><month>02</month><year>2017</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2009, Sergeev D.V., Krotenkova M.V., Piradov M.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2009, Sergeev D.V., Krotenkova M.V., Piradov M.A.</copyright-statement><copyright-year>2009</copyright-year><copyright-holder xml:lang="en">Sergeev D.V., Krotenkova M.V., Piradov M.A.</copyright-holder><copyright-holder xml:lang="ru">Sergeev D.V., Krotenkova M.V., Piradov M.A.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://annaly-nevrologii.com/pathID/article/view/360">https://annaly-nevrologii.com/pathID/article/view/360</self-uri><abstract xml:lang="en"><p>Assessment of cerebral perfusion in patients with acute ischemic stroke by means of perfusion CT (PCT) allows retrieving quantitative data on the cerebral blood flow (CBF), cerebral blood volume (CBV) and mean transit time (MTT). Thirty patients at earliest stages (first 24 hrs) of ischemic supratentorial stroke were studied, of whom patients with moderate to severe stroke predominated (median NIHSS score of 11.5). PCT was performed on day 1, 3 and 10, and diffusion-weight ed MRI (DWI) on day 1. It was shown that cerebral ischemia in the acute stage was characterized by the decrease of CBF and CBV (10.0 ml/100g х min and 1.9 ml/100 g, respectively), andthe increase of MTT (11.3 s). CBV lesion correlates well with the DWI lesion (r=0.91), i.e. with irreversible ischemic tissue damage, and its size is smaller than the sizes of CBF and MTT lesions. This mismatch reflects the “penumbra” zone. The infarct “core” has decreased CBF and CBV, and elevated MTT, while the “penumbral” tissue has only decreased CBF and elevated MTT when compared to the normal hemisphere. The “penumbra” and the “core” differ by values of CBF and CBV, but this difference is shaded by day 3. Increase of CBV in the infarct “core” in the course of stroke indicates the restoration of blood flow. A prognostic index is elaborated which allowspredicting the transformation of ischemia into irreversible tissue damage: it is the decrease of CBV for more than 12% copared with the intact hemisphere.</p></abstract><trans-abstract xml:lang="ru"><p>Исследование мозгового кровотока у пациентов с острым ишемическим инсультом с помощью перфузионной компьютерной томографии (ПКТ) позволяет получить количественные данные о таких показателях, как церебральный объем крови (Cerebral Blood Volume, CBV), мозговой кровоток (Cerebral Blood Flow, CBF) и среднее время прохождения крови (Mean Transit Time, MTT). Обследовано 30 пациентов в первые 24 час от начала ишемического супратенториального инсульта, среди которых преобладали больные с инсультом умеренной и тяжелой степени (оценка по шкале NIHSS в среднем составляла 11,5 баллов). Всем пациентам проводилась ПКТ в 1-е, 3-и и 10-е сут. и МРТ в режиме диффузионно-взвешенного изображения (ДВ’МРТ) в 1-е сут. Показано, что в острейшем периоде очаг ишемии характеризуется снижением CBF (10,0 мл/100 г х мин) и CBV (1,9 мл/100 г) и увеличением MTT (11,3 с). При этом зона измененного CBV соответствует очагу инфаркта на ДВ’МРТ (r=0,91), т.е. ткани с необратимыми ишемическими изменениями, и ее размеры уступают зонам измененных CBF и MTT. Это различие отражает зону «пенумбры». В зоне «пенумбры» отмечается снижение CBF и увеличение MTT по сравнению с интактным полушарием, а в «ядре» инфаркта – изменение всех перфузионных параметров. При этом «пенумбра» и «ядро» инфаркта отличаются по показателям CBF и CBV, однако это различие нивелируется уже к 3-м сут. В дальнейшем восстановление кровотока в «ядре» инфаркта характеризуется увеличением CBV. Установлен прогностический индекс, позволяющий предсказать трансформацию ишемизированной ткани в зону инфаркта, которым является снижение CBV более чем на 12% по сравнению с интактным полушарием.</p></trans-abstract><kwd-group xml:lang="en"><kwd>ischemic stroke</kwd><kwd>cerebral perfusion</kwd><kwd>perfusion CT</kwd><kwd>diffusion</kwd><kwd>weighted MRI</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ишемический инсульт</kwd><kwd>мозговой кровоток</kwd><kwd>перфузионная КТ</kwd><kwd>диффузионно-взвешенная МРТ</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Верещагин Н.В., Брагина Л.К., Вавилов С.Б., Левина Г.Я. Компьютерная томография мозга. М.: Медицина, 1986.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Корниенко В.Н., Пронин И.Н., Пьяных И.С., Фадеева Л.М. Исследование тканевой перфузии головного мозга методом компьютерной томографии. 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