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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Medical Radiology and radiation safety</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Medical Radiology and radiation safety</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Медицинская радиология и радиационная безопасность</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1024-6177</issn>
   <issn publication-format="online">2618-9615</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">44239</article-id>
   <article-id pub-id-type="doi">10.12737/1024-6177-2021-66-1-49-53</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Лучевая диагностика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Diagnostic radiology</subject>
    </subj-group>
    <subj-group>
     <subject>Лучевая диагностика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Muscle Mass Index at the Level Th12 vertebra as a Prognostic Factor  for Fatal Outcome in the Patients with Pneumonia Caused by SARS-COV2</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИНДЕКС МЫШЕЧНОЙ МАССЫ НА УРОВНЕ ПОЗВОНКА Th12  КАК ПРОГНОСТИЧЕСКИЙ ФАКТОР ЛЕТАЛЬНОГО ИСХОДА  У ПАЦИЕНТОВ С ПНЕВМОНИЕЙ, ВЫЗВАННОЙ SARS-COV2</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Башков</surname>
       <given-names>А. Н.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bashkov</surname>
       <given-names>A. N.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сушко</surname>
       <given-names>А И</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sushko</surname>
       <given-names>A I</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Григорьева</surname>
       <given-names>О. О.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Grigor'eva</surname>
       <given-names>O. O.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шейх</surname>
       <given-names>Ж. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sheyh</surname>
       <given-names>Zh. V.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Удалов</surname>
       <given-names>Ю. Д.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Udalov</surname>
       <given-names>Yu. D.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шикунов</surname>
       <given-names>Д. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shikunov</surname>
       <given-names>D. A.</given-names>
      </name>
     </name-alternatives>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Федеральный медицинский биофизический центр им. А.И. Бурназяна ФМБА России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">A.I. Burnasyan Federal Medical Biophysical Center of FMBA</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Федеральный медицинско-биофизический центр им. А.И. Бурназяна ФМБА России, Москва</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">A.I. Burnasyan Federal Medical Biophysical Center, Moscow, Russia</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Федеральный медицинский биофизический центр им. А.И. Бурназяна ФМБА России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">A.I. Burnasyan Federal Medical Biophysical Center of FMBA</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Городская клиническая больница им. С.П. Боткина</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">S.P. Botkin City clinical hospital</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Федеральный медицинский биофизический центр им. А.И.Бур­на­зяна ФМБА России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">A.I. Burnasyan Federal Medical Biophysical Center (FMBC) FMBA</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <volume>66</volume>
   <issue>1</issue>
   <fpage>49</fpage>
   <lpage>53</lpage>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/44239/view">https://naukaru.ru/en/nauka/article/44239/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: Разработать методику определения индекса мышечной массы  (ИММ) по данным рентгеновской компьютерной томографии (КТ) органов грудной клетки. Изучить влияние ИММ на летальный исход  от COVID19 в качестве прогностического фактора. &#13;
Материал и методы: Использованы данные истории болезни и КТ органов грудной клетки 247 больных  с подтверждённой пневмонией, вызванной SARS-Cov2. Разработана методика определения ИММ  на основе площади поперечного сечения параспинальных мышц на уровне позвонка Th12  и  длины грудного отдела позвоночника. Проведен корреляционный анализ показателей ИММ с использованием длины грудного отдела позвоночника ИММ(Д) и роста пациента ИММ(Р). Проведен статистический анализ различий возраста и показателя ИММ(Д) в группах пациентов с летальным исходом и выздоровевших.&#13;
Результаты: Выявлена сильная корреляционная связь между показателями ИММ, вычисленными на основе  длины грудного отдела позвоночника и роста пациента (r=0,861, p&lt;0,001).  Пороговое значение возраста, которое ассоциируется с увеличением вероятности летального исхода, у мужчин составило 60 лет (Se 77,3 %, Sp 60,5 %, PPV 51,5 %, NPV 83,1 %, индекс Юдена 0,378, площадь под ROC-кривой 0,728), у женщин 65 лет (Se 72,2 %, Sp 68,6 %, PPV 49,1 %, NPV 85,5 %, индекс Юдена 0,408, площадь под ROC-кривой 0,734). Отношение шансов летального исхода при превышении установленных пороговых значений возраста составило для мужчин – 5,2 (95 % ДИ: 2,3 – 12,0), для женщин  – 5,7 (95 % ДИ: 2,4 – 13,4). Показатель ИММ(Д) 3,37 см2/м2 является пороговым значением, менее которого вероятность летального исхода у пациентов мужского пола младше 60 возрастает в 26,3 раза (95 % ДИ: 4,8 – 143,0). У пациентов женского пола статистически значимого порогового значения  показателя ИММ(Д), который ассоциировался бы с более высоким риском летального исхода, не зарегистрировано.&#13;
Заключение: ИММ на уровне позвонка Th12 может быть достоверно вычислен при использовании длины грудного отдела позвоночника, если нет антропометрических данных.  Показатель ИММ(Д) менее 3,37 см2/м2 является прогностическим признаком летального исхода у мужчин младше 60 лет. Необходима дальнейшая работа по изучению влияния саркопении на тяжесть течения и исход от COVID19  у пациентов женского пола с учетом коморбидных состояний.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: To develop a methodology for determining the muscle mass index (MMI) at the level of Th12 based on the computed tomography of the chest; to estimate the impact of MMI on the outcome of the COVID19 patients as a prognostic factor. &#13;
Material and methods: The medical data and computed tomography of the chest of 247 patients with confirmed pneumonia caused by SARS-Cov2 were used. A technique has been developed for determining MMI based on the cross-sectional area of paraspinal muscles at the level of the Th12 vertebra and the length of the thoracic spine. A correlation analysis of MMI calculated based on  the length of the thoracic spine MMI(L) and height MMI(H) was performed. A statistical analysis of the differences of the MMI(L) in the groups of male and female patients with fatal outcome and recovered, as well as younger and older than 65 years were performed. &#13;
Results: A strong correlation was found between the MMI calculated on the basis of the length of the thoracic spine and height &#13;
(r = 0.861, p &lt;0.001). The age threshold, which was associated with an increase in the likelihood of death, in men was 60 years (Se 77.3 %, Sp 60.5 %, PPV 51.5 %, NPV 83.1 %, Youden's index 0.378, area under ROC- curve 0.728), in women 65 years old (Se 72.2 %, Sp 68.6 %, PPV 49.1 %, NPV 85.5 %, Youden's index 0.408, the area under the ROC curve 0.734). The odds ratio of death when the age thresholds are exceeded was 5.2 for men (95 % CI: 2.3 – 12.0), for women – 5.7 (95 % CI: 2.4 – 13.4). MMI(L) 3.37cm2/m2 is a threshold value, below which the probability of death in male patients under 60 years increased 26.3 times (95 %  CI: 4.8 – 143.0). In female patients, there was no statistically significant threshold value of MMI(L), which would be associated with a higher risk of death. &#13;
Conclusion: MMI, calculated at the level Th12 on the basis of the length of the thoracic spine, can be reliably used as a tool to estimate sarcopenia associated  muscle atrophy, if there is no anthropometric data. The MMI(D) less than 3.37 cm2/m2 is a strong predictor of death in men under 60 years of age. Further work is needed to study the effect of sarcopenia on the severity and outcome of COVID19 in female patients, taking into account comorbid conditions.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>компьютерная томография</kwd>
    <kwd>саркопения</kwd>
    <kwd>индекс мышечной массы</kwd>
    <kwd>COVID19</kwd>
    <kwd>SARS-Cov2</kwd>
    <kwd>прогностический фактор</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>computed tomography</kwd>
    <kwd>sarcopenia</kwd>
    <kwd>muscle mass index</kwd>
    <kwd>COVID19</kwd>
    <kwd>SARS-Cov2</kwd>
    <kwd>prognostic factors</kwd>
   </kwd-group>
  </article-meta>
 </front>
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