<?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>1870-7203</journal-id>
<journal-title><![CDATA[Acta médica Grupo Ángeles]]></journal-title>
<abbrev-journal-title><![CDATA[Acta méd. Grupo Ángeles]]></abbrev-journal-title>
<issn>1870-7203</issn>
<publisher>
<publisher-name><![CDATA[Grupo Ángeles, Servicios de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-72032021000100021</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Determinación de parámetros morfológicos por resonancia magnética de tumores rectales para establecer un sistema de puntuación de rectometría (R.E.C.T.A.L. score) que nos permita estimar el grado de complejidad quirúrgica]]></article-title>
<article-title xml:lang="en"><![CDATA[Determination of morphological parameters by magnetic resonance of rectal tumors to establish a rectometry scoring system (R.E.C.T.A.L. score) that allows us to estimate the degree of surgical complexity]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Argüello Ramírez]]></surname>
<given-names><![CDATA[Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez Pérez]]></surname>
<given-names><![CDATA[María de Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México  Facultad de Medicina]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Ángeles Pedregal Servicio de Resonancia Magnética ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>19</volume>
<numero>1</numero>
<fpage>21</fpage>
<lpage>24</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032021000100021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032021000100021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032021000100021&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  Describir las características morfológicas por resonancia magnética de tumores rectales para establecer un sistema de puntuación de rectometría (R.E.C.T.A.L score) que permita estimar el grado de complejidad quirúrgica.  Material y métodos:  Se realizó un estudio observacional, descriptivo, transversal ambispectivo seleccionando una muestra de pacientes que acudieron al Hospital Ángeles Pedregal del mes de marzo de 2017 al mes de diciembre de 2019. Incluyendo a todos aquellos pacientes con diagnóstico de carcinoma rectal a los que se les hubiera practicado resonancia magnética se les aplicó el instrumento denominado R.E.C.T.A.L score (R.E.C.T.A.L RM HAP/2019) para medir variables cualitativas y cuantitativas y así determinar el riesgo quirúrgico.  Resultados:  De los 48 pacientes que se ingresaron al estudio, 16 (33.3%) de ellos tuvieron una complejidad quirúrgica baja, 16 (33.3%) moderada y 16 (33.3%) alta.  Conclusiones:  La puntuación propuesta para la complejidad quirúrgica no se ha realizado antes para este tipo de tumores; sin embargo, para tumores renales se ha aceptado su empleo. En nuestra población, en la que tenemos pacientes que presentaron tumores en recto valorados por resonancia, se realizaron modificaciones específicas para este tipo de lesión y encontramos que ofrece detalles específicos que pueden ser utilizados por el cirujano para realizar un adecuado abordaje quirúrgico y decidir complementarlo con terapia adyuvante.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  To describe the morphological characteristics of rectal tumors by magnetic resonance imaging (MRI) in order to establish a rectometry scoring system (R.E.C.T.A.L. score) that enables the surgical complexity grading estimation.  Material and methods:  An observational, descriptive, cross-sectional, ambispective study was carried out selecting a sample of patients that came to the Hospital Ángeles Pedregal from March 2017 to December 2019. Including all patients diagnosed with rectal carcinoma who would have undergone MRI, the instrument referred to as R.E.C.T.A.L. score (R.E.C.T.A.L. RM HAP/2019) was applied to patients to measure qualitative and quantitative variables, thus determine surgical risk.  Results:  Of the 48 patients that entered the study, 16 (33%) of them had a low surgical complexity, 16 (33%) moderate and 16 (33%) high.  Conclusions:  The proposed punctuation for surgical complexity has not been accepted. In our population that includes patients with rectal tumors assessed by MRI, specific modifications were made for this type of injury and we found that provides specific details that can be used by surgeons to perform an adequate surgical approach and to complement it with adjunctive therapy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cáncer de recto]]></kwd>
<kwd lng="es"><![CDATA[R.E.C.T.A.L. score]]></kwd>
<kwd lng="es"><![CDATA[resonancia magnética]]></kwd>
<kwd lng="en"><![CDATA[Rectal cancer]]></kwd>
<kwd lng="en"><![CDATA[R.E.C.T.A.L. score]]></kwd>
<kwd lng="en"><![CDATA[magnetic resonance imaging]]></kwd>
</kwd-group>
</article-meta>
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