<?xml version="1.0" encoding="ISO-8859-1"?><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">
<front>
<journal-meta>
<journal-id>1688-0390</journal-id>
<journal-title><![CDATA[Revista Médica del Uruguay]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Méd. Urug.]]></abbrev-journal-title>
<issn>1688-0390</issn>
<publisher>
<publisher-name><![CDATA[Sindicato Médico del Uruguay]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-03902018000300019</article-id>
<article-id pub-id-type="doi">10.29193/rmu.34.3.1</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Dosis acumulada en tomografía computada 2014-2017: análisis descriptivo de una población del Hospital de Clínicas]]></article-title>
<article-title xml:lang="en"><![CDATA[Cumulative doses from computed tomography 2014-2017. Descriptive analysis of a population at the Clínicas Hospital]]></article-title>
<article-title xml:lang="pt"><![CDATA[Dose acumulada em tomografia computada 2014-2017: análise descritivo de uma população de pacientes do Hospital de Clínicas.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Servente Luquetti]]></surname>
<given-names><![CDATA[Liliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martinucci Silva]]></surname>
<given-names><![CDATA[Flavia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chozza Lecuna]]></surname>
<given-names><![CDATA[Nahiara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hartmann Larronda]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Irazoqui Cortazzo]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maguna Baubeta]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero Larrosa]]></surname>
<given-names><![CDATA[Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dibarboure Bassagoda]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la República Hospital de Clínicas Dr. Manuel Quintela Departamento Clínico de Imagenología]]></institution>
<addr-line><![CDATA[Montevideo ]]></addr-line>
<country>Uruguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de la República Facultad de Medicina EUTM]]></institution>
<addr-line><![CDATA[Montevideo ]]></addr-line>
<country>Uruguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de la República Hospital de Clínicas Dr. Manuel Quintela Departamento Clínico de Imagenología]]></institution>
<addr-line><![CDATA[Montevideo ]]></addr-line>
<country>Uruguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<volume>34</volume>
<numero>3</numero>
<fpage>19</fpage>
<lpage>44</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-03902018000300019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-03902018000300019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-03902018000300019&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  el uso creciente de la tomografía computada produce un aumento de la dosis colectiva con el potencial riesgo de las radiaciones ionizantes. El objetivo del trabajo fue determinar la frecuencia de estudios tomográficos repetidos y estimar la dosis de radiación acumulada en el período 2014/2017 de una muestra de pacientes asistida durante julio/agosto de 2017 en el Hospital de Clínicas.  Método:  se incluyeron pacientes que en julio/agosto de 2017 concurrieron al Departamento de Imagenología del Hospital de Clínicas, a quienes su médico tratante indicó la realización de una tomografía computada. Se trató de un estudio descriptivo, longitudinal, retrospectivo. Se completó una planilla con datos demográficos y del procedimiento. Se realizó la búsqueda de estudios tomográficos previos en el sistema de archivo de imágenes médicas y registro de informes de los últimos tres años.  Resultados:  en la muestra se incluyeron 110 pacientes; 59 (54,1%) se hicieron más de una tomografía, siendo abdomen y pelvis las regiones más estudiadas. Siete pacientes (6,4%) superaron el umbral de dosis de 100 mSv y 16 (14,5%) recibieron dosis entre 50 y 100 mSv. A su vez, 23 pacientes (20,9%) se hicieron más de cuatro tomografías, es decir, en promedio más de una al año.  Conclusiones:  la tomografía computada es una herramienta beneficiosa para el diagnóstico siempre y cuando se use racionalmente haciendo un balance entre riesgo/beneficio. Se debe tomar conciencia de los riesgos vinculados a la dosis acumulada en múltiples estudios tomográficos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction and objective: the rising use of computed tomography results in an increase in the collective doses with the potential risk for ionizing radiation. The study aimed at determining the frequency of repeated scans and at estimating the cumulative radiation doses between 2014 and 2017 in a sample of patients seen during July/August of 2017 at the Clinicas Hospital.  Method:  patients who consulted at the Imagenology Department of the Clinicas Hospital in July and August, 2017 whose treating physician indicated a computed tomography were included in the study. It consisted of a descriptive, longitudinal, retrospective study. A spread sheet with demographic data and procedure was filled out and previous tomographic studies were looked for in the medical images file system, and reports issued in the last 3 years were analysed.  Results:  110 patients made up the sample; more than one tomography was performed to 59 (54.1%) patients underwent more than one scan, abdominal and pelvic scans being the most frequent. 7 patients (6.4%) surpassed the 100 mSv dose threshold and 16 (14.5%) received doses between 50 and 100 mSv. Likewise, 23 patients (20.9%) underwent more than 4 tomographies, that is more than one per year.  Conclusions: computed tomography is a beneficious diagnostic tool, provided it is used rationally upon a risk/benefit balance analysis. Awareness needs to be raised in relation to the risks associated to cumulative doses from multiple scans]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução e objetivo:  o uso crescente da tomografia computada produz um aumento da dose coletiva com o potencial risco das radiações ionizantes. O objetivo deste trabalho foi determinar a frequência de estudos tomográficos repetidos e estimar a dose de radiação acumulada no período 2014/2017 de uma amostra de pacientes atendida durante os meses de julho e agosto de 2017 no Hospital de Clínicas.  Método:  foram incluídos pacientes que nos meses de julho e agosto de 2017 foram ao Depto. de Imagenología do HC com indicação de una tomografia computada por seu médico tratante. Realizou-se um estudo descritivo, longitudinal e retrospectivo. Os dados foram coletados em uma planilha com dados demográficos e do procedimento. Fez-se uma pesquisa de estudos tomográficos prévios no sistema de arquivo de imagens médicas e registro de expedientes dos últimos 3 anos.  Resultados:  cento e dez pacientes foram incluídos na amostra; 59 (54,1%) fizeram mais de uma tomografia, sendo abdômen e pélvis as regiões mais estudadas. 7 pacientes (6,4%) superaram o umbral de dose de 100 mSv e 16 (14,5%) receberam doses entre 50 e 100 mSv. Por outro lado 23 pacientes (20,9%) foram submetidos a mais de 4 tomografias, isto é, mais de uma por ano.  Conclusões:  a tomografia computada é uma ferramenta útil para o diagnóstico sempre e quando seja usada racionalmente fazendo um balanço risco/beneficio. Deve-se tomar consciência dos riscos vinculados às doses acumuladas em múltiplos estudos tomográficos.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tomografía computarizada por rayos X]]></kwd>
<kwd lng="es"><![CDATA[Radiación ionizante]]></kwd>
<kwd lng="es"><![CDATA[Protección radiológica]]></kwd>
<kwd lng="es"><![CDATA[Dosis de radiación]]></kwd>
<kwd lng="es"><![CDATA[Diagnóstico por imagen]]></kwd>
<kwd lng="en"><![CDATA[Tomography, X-ray computed]]></kwd>
<kwd lng="en"><![CDATA[Radiation, ionizing]]></kwd>
<kwd lng="en"><![CDATA[Radiation protection]]></kwd>
<kwd lng="en"><![CDATA[Radiation dosage]]></kwd>
<kwd lng="en"><![CDATA[Diagnostic imaging]]></kwd>
<kwd lng="pt"><![CDATA[Tomografia computadorizada por raios X]]></kwd>
<kwd lng="pt"><![CDATA[Radiação ionizante]]></kwd>
<kwd lng="pt"><![CDATA[Proteção radiológica]]></kwd>
<kwd lng="pt"><![CDATA[Dose de radiação]]></kwd>
<kwd lng="pt"><![CDATA[Diagnóstico por imagen]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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