<?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>2007-4085</journal-id>
<journal-title><![CDATA[Revista mexicana de urología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. urol.]]></abbrev-journal-title>
<issn>2007-4085</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Urología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40852019000400003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Concordancia de la ultrasonografía con urotomografía en el tamizaje y diagnóstico de urolitiasis en una población endémica]]></article-title>
<article-title xml:lang="en"><![CDATA[Concordance between ultrasonography and computed tomography urography for the screening and diagnosis of urolithiasis in an endemic population]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Euán]]></surname>
<given-names><![CDATA[Víctor Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Escobedo]]></surname>
<given-names><![CDATA[Martha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Solís]]></surname>
<given-names><![CDATA[Ana Ligia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-Nava]]></surname>
<given-names><![CDATA[Azalia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Jurado]]></surname>
<given-names><![CDATA[Abraham Adolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Rocha]]></surname>
<given-names><![CDATA[Lizeth Araceli]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lugo]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Regional de Alta Especialidad de la Península de Yucatán  ]]></institution>
<addr-line><![CDATA[Mérida Yucatán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital General Agustín O'Horan Servicios de Salud de Yucatán ]]></institution>
<addr-line><![CDATA[Mérida Yucatán]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>79</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40852019000400003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40852019000400003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40852019000400003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Determinar la concordancia entre ultrasonografía y la urotomografía para el tamizaje y diagnóstico temprano en pacientes con sospecha de urolitiasis.  Material y Métodos: Se estudiaron 140 pacientes, mayores de 18 años y sospecha de urolitiasis. Se les realizó una exploración ultrasonográfica, para determinar la presencia y tamaño del cálculo. Posteriormente, se les examinó con un urotomógrafo de fase simple determinando su localización, tamaño y densidad. Se estimó el tamaño de los cálculos. Se estimó la concordancia entre los métodos ultrasonográficos y urotomográficos, así como, la sensibilidad y la especificidad para ambos métodos de imagen.  Resultados: A través de urotomografía se observaron cálculos renales en 94 pacientes, cálculos ureterales en 26 pacientes y cálculos en la vejiga en 20 pacientes. Los cálculos observados por ultrasonografía en relación a la urotomografía en riñón, uréteres y vejiga fueron del 84% (79/94 pacientes), 84.6% (22/26) y 100% (20/20) respectivamente. Las concordancias estimadas en riñón, uréteres y vejiga fueron del 61% (88% sensibilidad, 90% especificidad), 75% (95% sensibilidad, 90% especificidad) y 98% (99% sensibilidad y especificidad) respectivamente.  Conclusiones: La ultrasonografía es una herramienta confiable para el diagnóstico temprano de pacientes con sospecha clínica de urolitiasis, siempre que sea operada por personal especializado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To determine the concordance between ultrasonography and computed tomography (CT) urography for the screening of and early diagnosis in patients suspected of presenting with urolithiasis.  Materials and methods: A total of 140 patients above 18 years of age and with clinical suspicion of urolithiasis were studied. Ultrasound imaging was performed to determine the presence and size of the stone. The patients later underwent single-phase CT urography to determine stone location, size, and density. Concordance between ultrasonography and CT urography was estimated, along with the sensitivity and specificity of the two imaging methods.  Results: Through CT urography, kidney stones were observed in 94 patients, ureteral stones in 26 patients, and bladder stones in 20 patients. In comparison, ultrasonography identified 84% (79/94 patients) of the kidney stones, 84.6% (22/26) of the ureteral stones, and 100% (20/20) of the bladder stones. The estimated concordance between the two imaging methods was 61% (88% sensitivity, 90% specificity) in the kidneys, 75% (95% sensitivity, 90% specificity) in the ureters, and 98% (99% sensitivity and specificity) in the bladder.  Conclusions: Ultrasonography is a reliable tool for early diagnosis in patients with clinical suspicion of urolithiasis, as long as it is performed by specialized personnel.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Urolithiasis]]></kwd>
<kwd lng="en"><![CDATA[Ultrasonography]]></kwd>
<kwd lng="en"><![CDATA[Computed tomography urography]]></kwd>
<kwd lng="es"><![CDATA[urolitiasis]]></kwd>
<kwd lng="es"><![CDATA[ultrasonografía]]></kwd>
<kwd lng="es"><![CDATA[urotomografía]]></kwd>
</kwd-group>
</article-meta>
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