<?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>0188-9532</journal-id>
<journal-title><![CDATA[Revista mexicana de ingeniería biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. ing. bioméd]]></abbrev-journal-title>
<issn>0188-9532</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ingeniería Biomédica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-95322017000200492</article-id>
<article-id pub-id-type="doi">10.17488/rmib.38.2.5</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Método para medir densidad ósea a partir de conductividad eléctrica calculada por Tomografía de Impedancia Eléctrica]]></article-title>
<article-title xml:lang="en"><![CDATA[Method for measuring bone density through the electrical conductivity calculated by Electrical Impedance Tomography]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[San-Pablo-Juárez]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Sánchez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ireta-Moreno]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávalos-Zúñiga]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Barbosa]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato División de Ingenierías ]]></institution>
<addr-line><![CDATA[Irapuato-Salamanca Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<volume>38</volume>
<numero>2</numero>
<fpage>492</fpage>
<lpage>506</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-95322017000200492&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-95322017000200492&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-95322017000200492&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: En este trabajo se presenta un método para medir densidad ósea. El método consiste en la medición de conductividad eléctrica de material óseo por medio de Tomografía de Impedancia Eléctrica (TIE). Se hace uso de una celda de prueba con valores simulados de hueso aplicando corrientes y registrando voltajes, para después usar una reconstrucción por retroproyección y generar mapas de conductividad por medio de gráficas. Los datos obtenidos son analizados y a partir de ellos se obtiene una distribución de la medida de conductividad eléctrica del material óseo, que varía dependiendo del grado de porosidad que presenta en cada región. La ventaja de utilizar el método de tomografía de impedancia es que permite medir la conductividad efectiva del hueso porque se mide en todas las direcciones. Por lo tanto es posible determinar porosidad en material óseo usando mediciones de conductividad eléctrica por medio del método TIE propuesto, lo cual permite calcular un valor numérico de densidad ósea.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: In this paper a method to measure bone density was developed. The method consists in the measurement of electrical conductivity of bone by Electrical Impedance Tomography (EIT). A phantom with simulated data of bone is used, applying currents and recording voltages; then a backprojection reconstruction is used to generate maps with graphic conductivity values. The data obtained were analyzed and was obtained a distribution of electrical conduc tivity of bone, wich varies according to the bone porosity level in each region. A significant advantage of using this method is that is possible to measure electrical conductivity in several directions of the bone, obtaining an effective conductivity. Therefore it is possible to determine the porosity in the bone with measurements of electrical conductivity using the proposed EIT method, this allows to calculate a numerical value for bone density.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Densidad ósea]]></kwd>
<kwd lng="es"><![CDATA[conductividad eléctrica]]></kwd>
<kwd lng="es"><![CDATA[Tomografía de Impedancia Eléctrica]]></kwd>
<kwd lng="es"><![CDATA[Retroproyección Equipotencial]]></kwd>
<kwd lng="en"><![CDATA[Bone density]]></kwd>
<kwd lng="en"><![CDATA[electrical conductivity]]></kwd>
<kwd lng="en"><![CDATA[Electrical Impedance Tomography]]></kwd>
<kwd lng="en"><![CDATA[Sheffield Backprojection]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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