<?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>S1870-72032023000100012</article-id>
<article-id pub-id-type="doi">10.35366/109014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prevalencia de asas vasculares de la arteria cerebelosa anteroinferior, en el conducto auditivo interno, identificadas por resonancia magnética, en el Hospital Angeles Pedregal]]></article-title>
<article-title xml:lang="en"><![CDATA[Prevalence of vascular loops of the anteroinferior cerebellar artery, in the internal auditory canal, identified by magnetic resonance imaging, at Hospital Angeles Pedregal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mina Romero]]></surname>
<given-names><![CDATA[Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bravo Valle]]></surname>
<given-names><![CDATA[Jaime]]></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 La Salle Hospital Angeles Pedregal Facultad Mexicana de Medicina]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad La Salle Hospital Angeles Pedregal Facultad Mexicana de Medicina]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad La Salle Hospital Angeles Pedregal Facultad Mexicana de Medicina]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>21</volume>
<numero>1</numero>
<fpage>12</fpage>
<lpage>15</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032023000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032023000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032023000100012&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  la compresión neurovascular del nervio vestibulococlear por asas vasculares de la arteria cerebelosa anteroinferior es considerada una causa de síntomas neuroacústicos. La resonancia magnética ha contribuido en la valoración del nervio vestibulococlear y la vasculatura a su alrededor, con múltiples ventajas al no ser invasiva y brindar visualización anatómica más detallada del conducto auditivo interno y del ángulo pontocerebeloso.  Objetivo:  conocer la prevalencia de asas vasculares de la arteria cerebelosa anteroinferior en el conducto auditivo interno en los estudios de resonancia magnética realizados en el Servicio de Resonancia Magnética del Hospital Angeles Pedregal.  Resultados:  fueron incluidos 150 pacientes (75 mujeres, 75 hombres) entre 16 y 85 años. Se analizaron 300 oídos. El tipo de asa más frecuente fue el grado I de la clasificación de Chavda (derecho: 22.7%, izquierdo: 14%). La detección según el objetivo del estudio, fue enfocado a encéfalo (grado I: 24.7%, grado II: 11.3%, grado III: 5%), enfocado a oído (grado I: 12%, grado II: 7.3%, grado III: 2.7%). De oídos valorados fueron normales 37%.  Conclusiones:  las asas vasculares de la arteria cerebelosa anteroinferior son una condición frecuente, demostrando su detección en estudios que no solamente tuvieron enfoque para oídos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  neurovascular compression of the vestibulocochlear nerve by vascular loops of the anteroinferior cerebellar artery is considered a cause of neuroacoustic symptoms. Magnetic resonance imaging has contributed to assessing the vestibulocochlear nerve and the vasculature around it, with multiple advantages as it is non-invasive and provides more detailed anatomical visualization of the internal auditory canal and the cerebellopontine angle.  Objective:  to know the prevalence of vascular loops of the anteroinferior cerebellar artery in the internal auditory canal in the magnetic resonance studies carried out in the Magnetic Resonance Service of Hospital Angeles Pedregal.  Results:  150 patients (75 women, 75 men) between 16 and 85 years old were included. 300 ears were analyzed. The most frequent loop type was grade I of the Chavda classification (right: 22.7%, left: 14%). Detection, according to the objective of the study, was focused on the brain (grade I: 24.7%, grade II: 11.3%, grade III: 5%), focused on the ear (grade I: 12%, grade II: 7.3%, grade III: 2.7%). 37% of the ears evaluated were standard.  Conclusions:  the vascular loops of the anteroinferior cerebellar artery are a frequent condition, demonstrating its detection in studies not only focused on the ears.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[arteria cerebelosa anteroinferior]]></kwd>
<kwd lng="es"><![CDATA[asas vasculares]]></kwd>
<kwd lng="es"><![CDATA[ángulo pontocerebeloso]]></kwd>
<kwd lng="es"><![CDATA[resonancia magnética]]></kwd>
<kwd lng="es"><![CDATA[nervio vestibulococlear]]></kwd>
<kwd lng="en"><![CDATA[anteroinferior cerebellar artery]]></kwd>
<kwd lng="en"><![CDATA[vascular loops]]></kwd>
<kwd lng="en"><![CDATA[cerebellar pontine angle]]></kwd>
<kwd lng="en"><![CDATA[magnetic resonance]]></kwd>
<kwd lng="en"><![CDATA[vestibulocochlear nerve]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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