<?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>0120-3347</journal-id>
<journal-title><![CDATA[Colombian Journal of Anestesiology]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. anestesiol.]]></abbrev-journal-title>
<issn>0120-3347</issn>
<publisher>
<publisher-name><![CDATA[SCARE-Sociedad Colombiana de Anestesiología y Reanimación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-33472021000300202</article-id>
<article-id pub-id-type="doi">10.5554/22562087.e968</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Preferred display size and visual distance for ultrasound-guided radial artery cannulation]]></article-title>
<article-title xml:lang="es"><![CDATA[Tamaño preferido de la imagen en pantalla y distancia visual para la canalización de la arteria radial guiada por ecografía]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hoshi]]></surname>
<given-names><![CDATA[Takuo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Ibaraki Clinicai Education and Training Center Department of Anesthesiology and Criticai Care Medicine ]]></institution>
<addr-line><![CDATA[Ibaraki ]]></addr-line>
<country>Japan</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>49</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-33472021000300202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-33472021000300202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-33472021000300202&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: In-line positioning of an ultrasound image provides higher success rates and less time to completion for radial arterial cannulation. But preferable size and distance of ultrasound display has not been previously discussed.  Objective: To assess the ideal visual distance and display size when using a smart phone or tablet as the ultrasound image display.  Methods: Four smart phones or tablets were used as ultrasound displays in six different configurations in a simulated radial artery puncture. In a questionnaire, 116 anaesthesiologists working in Ibaraki Prefecture, Japan, were asked which of the six configurations was preferable for radial artery cannulation.  Results: Sixty anaesthesiologists answered the questionnaire. About half (53%) preferred the smaller display (4- or 5.5-inch) fixed at a distance of 30 to 40 cm, and most of the rest (44%) preferred the larger display (7.9- or 9.7-inch) placed posterior to the probe with a visual distance of 45 to 60 cm.  Conclusions: Among the anaesthesiologists, the preferable size and visual distance for ultrasound-guided radial artery cannulation varied using a smart phone or tablet for in-line display.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: El posicionamiento en línea con una imagen ecográfica permite mayores tasas de éxito y reduce el tiempo para realizar la canalización de la arteria radial. Sin embargo, no se ha hablado sobre cuál es el tamaño y la distancia preferibles para la imagen en pantalla.  Objetivo: Evaluar la distancia visual y el tamaño de la imagen en pantalla cuando se utiliza un teléfono inteligente o una tableta para visualizar la imagen ecográfica.  Métodos: Se utilizaron cuatro teléfonos inteligentes o tabletas como pantalla para visualizar las imágenes ecográficas en seis configuraciones distintas, en una simulación de la canalización de la arteria radial. Mediante un cuestionario se preguntó a 116 anestesiólogos que trabajan para la Prefectura de Ibaraki, Japón, cuál de las seis configuraciones era preferible para la canalización de la arteria radial.  Resultados: Sesenta anestesiólogos respondieron el cuestionario. Aproximadamente la mitad (53%) prefirieron la imagen más pequeña (4 o 5,5 pulgadas), fija a una distancia de 30 a 40 cm, y la mayoría de los otros (44%) prefirieron la imagen más grande (7,9- o 9,7 pulgadas), colocada en la parte posterior al transductor, con una distancia visual de 45 a 60 cm.  Conclusiones: Entre los anestesiólogos, el tamaño preferido y la distancia visual para la canalización de la arteria radial guiada por ecografía, varió utilizando un teléfono inteligente o una tableta para su visualización en línea.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ultrasound guidance]]></kwd>
<kwd lng="en"><![CDATA[radial artery cannulation]]></kwd>
<kwd lng="en"><![CDATA[visual distance]]></kwd>
<kwd lng="en"><![CDATA[display size]]></kwd>
<kwd lng="en"><![CDATA[In-line positioning]]></kwd>
<kwd lng="es"><![CDATA[Guía por ecografía]]></kwd>
<kwd lng="es"><![CDATA[canalización de la arteria radial]]></kwd>
<kwd lng="es"><![CDATA[distancia visual]]></kwd>
<kwd lng="es"><![CDATA[tamaño de la imagen en pantalla]]></kwd>
<kwd lng="es"><![CDATA[posicionamiento en línea]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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