{"id":30132,"date":"2018-03-09T09:23:37","date_gmt":"2018-03-09T09:23:37","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/measurements-and-calculations-of-the-radiation-dose-in-patients-undergoing-computed-tomography-procedures\/"},"modified":"2018-03-09T09:23:37","modified_gmt":"2018-03-09T09:23:37","slug":"measurements-and-calculations-of-the-radiation-dose-in-patients-undergoing-computed-tomography-procedures","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/measurements-and-calculations-of-the-radiation-dose-in-patients-undergoing-computed-tomography-procedures\/","title":{"rendered":"Measurements and calculations of the radiation dose in patients undergoing computed tomography procedures"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Avil\u00e9s Lucas M. Paz <\/strong><\/h2>\n<p>La necesidad de disponer de par\u00e1metros individuales de dosis a pacientes que reflejen la variaci\u00f3n en composici\u00f3n, tama\u00f1o, y posicion del paciente durante un examen de tomograf\u00eda computarizada (tc) ha motivado nuestro trabajo. Hasta ahora, se han calculado las dosis en \u00f3rganos independientemente del tama\u00f1o y de la posici\u00f3n del paciente.  sin embargo, las dosis individuales en cada paciente pueden ser significativamente mayores que los valores medios de los disponemos en estos momentos. Muchas publicaciones han reconocido recientemente la necesidad de estimar valores de dosis m\u00e1s realistas adem\u00e1s de la importancia de adaptar los par\u00e1metros del estudio a las caracter\u00edsticas espec\u00edficas de cada paciente. El kerma en aire en la superficie de entrada es un par\u00e1metro que puede medirse o calcularse en pacientes individuales. Adem\u00e1s puede usarse para auditar la dosis a pacientes y para estimar el riesgo de radiaci\u00f3n en algunos procedimientos espec\u00edficos de tc tales como los fluoroscopia o perfusi\u00f3n en tc que est\u00e1n cobrando importancia en estos \u00faltimos a\u00f1os.  el efecto del tama\u00f1o y la posici\u00f3n del pacientes sobre el kerma en aire en la superficie de entrada, el valor de pico del kerma en aire en la superficie de entrada y la energ\u00eda impartida ha sido investigado en maniqu\u00edes y pacientes sometidos a estudios de tc con modelos te\u00f3ricos y medidas experimentales. en esta tesis, hemos demostrado que el producto kerma en aire-longitud es pr\u00e1cticamente independiente del tama\u00f1o del paciente (para pacientes adultos) pero decrece a medida que la superficie anterior de medida se mueve verticalmente alej\u00e1ndose del isocentro. La contribuci\u00f3n principal a esta variaci\u00f3n proviene del filtro de forma del haz. Se han desarrollado nuevos modelos compuacionales (uno anal\u00edtico y otro basdo en el m\u00e9todo de monte carlo para el transporte de fotones en un medio material) que han permitido predecir el comportamiento del producto kerma en a<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Measurements and calculations of the radiation dose in patients undergoing computed tomography procedures<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Measurements and calculations of the radiation dose in patients undergoing computed tomography procedures <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Avil\u00e9s Lucas M. Paz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/05\/2004<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Roger Dance David<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Jaque rechea <\/li>\n<li>luciano Gonz\u00e1lez Garc\u00eda (vocal)<\/li>\n<li> Guibelarde del castillo eduardo (vocal)<\/li>\n<li>roberto Gonz\u00e1lez amado (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Avil\u00e9s Lucas M. Paz La necesidad de disponer de par\u00e1metros individuales de dosis a pacientes que reflejen [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[84849,15127,84851,24599,41877,84850],"class_list":["post-30132","post","type-post","status-publish","format-standard","hentry","category-sin-categoria","tag-aviles-lucas-m-paz","tag-francisco-jaque-rechea","tag-guibelarde-del-castillo-eduardo","tag-luciano-gonzalez-garcia","tag-roberto-gonzalez-amado","tag-roger-dance-david"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/30132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=30132"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/30132\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=30132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=30132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=30132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}