{"id":114204,"date":"2018-03-11T10:42:05","date_gmt":"2018-03-11T10:42:05","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/validacion-de-la-cuantificacion-de-la-concentracion-hepatica-de-hierro-mediante-resonancia-magnetica-nuclear-de-1-tesla\/"},"modified":"2018-03-11T10:42:05","modified_gmt":"2018-03-11T10:42:05","slug":"validacion-de-la-cuantificacion-de-la-concentracion-hepatica-de-hierro-mediante-resonancia-magnetica-nuclear-de-1-tesla","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/salud-publica\/validacion-de-la-cuantificacion-de-la-concentracion-hepatica-de-hierro-mediante-resonancia-magnetica-nuclear-de-1-tesla\/","title":{"rendered":"Validaci\u00f3n de la cuantificaci\u00f3n de la concentraci\u00f3n hep\u00e1tica de hierro mediante resonancia magn\u00e9tica nuclear de 1-tesla"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Agustin Castiella Eguzquiza <\/strong><\/h2>\n<p>Introducci\u00f3n: la medici\u00f3n de la concentraci\u00f3n de hierro hep\u00e1tica (chh) por rm es una t\u00e9cnica no invasiva de gran utilidad en el diagn\u00f3stico de los pacientes con sospecha de sobrecarga f\u00e9rrica en h\u00edgado.Objetivo:validar la eficacia de la rm 1 tesla en la determinaci\u00f3n de la (chh) en pacientes con sospecha de sobrecarga f\u00e9rrica. Validar su capacidad para diagnosticar o descartar la presencia de una chh sugestiva de hemocromatosis.Pacientes y m\u00e9todos:estudio observacional, transversal, con inclusi\u00f3n prospectiva de pacientes consecutivos. De 2002 a 2010 hemos obtenido la chh estimada mediante rm 1 tesla (m\u00e9todo gandon) y de rm 1,5 tesla (m\u00e9todo al\u00fastiza), y mediante bh, en 56 pacientes consecutivos (58rm:35\/23).Resultados:grupo rm 1 tesla: de acuerdo con chh en bh, 15 pacientes clasificados como normales (<36\u00c2\u00b5mol\/g)-la rm valor\u00f3 correctamente 7; sobreestim\u00f3 8-; 15 grupo hemosiderosis (36-80 \u00c2\u00b5mol\/g)-rm valor\u00f3 correctamente 5, sobreestim\u00f3 10-; 5 grupo hemocromatosis (>80 \u00c2\u00b5mol\/g)-valor\u00f3 correctamente las 5-. Existi\u00f3 una correlaci\u00f3n entre la determinaci\u00f3n de la chh por bh y rm 1 tesla con r=0.619. Existieron diferencias estad\u00edsticamente significativas (p<0.05) entre chh media por biopsia (53.43\/de45.67\/ic95%37.74 a 69.12) y por rm 1 tesla (76.14\/de47.31\/ic95% 60.46 a 92.97), con sobrevaloraci\u00f3n por parte de la rm. Grupo rm 1,5 tesla: de acuerdo con chh en bh, normal en 14, hemosiderosis en 6 y hemocromatosis en 3. La rm valor\u00f3 correctamente 6 y sobreestim\u00f3 8 en grupo normal; grupo hemosiderosis, 3 correctamente, 3 sobrevalorados; grupo hemocromatosis, valor\u00f3 correctamente los 3. La correlaci\u00f3n entre chh por bh y rm 1,5 tesla fue de r=0.815. La chh media obtenida por bh (69,34\/de152.1\/ic95% 3.57 a 135.1 ) y rm 1,5 tesla (70.43\/de 57.63\/ic95% 45.51 a 95.36) no demostraron diferencias significativas (p>0.05).Conclusiones: la determinaci\u00f3n de chh por rm 1 tesla (m\u00e9todo gandon) es \u00fatil para diagnosticar o descartar hemocromatosis y para diagnosticar chh normal. Existe una importante tendencia a la sobreestimaci\u00f3n en pacientes sin y con sobrecarga f\u00e9rrica en la chh obtenida por rm 1 tesla. La determinaci\u00f3n de chh por rm 1,5 tesla (m\u00e9todo al\u00fastiza) es superior a la de rm 1 tesla, aunque tambi\u00e9n existe una tendencia a sobreestimar. La chh media obtenida por bh o rm 1,5 tesla no tuvieron diferencias significativas. En cambio si existieron entre bh y rm 1 tesla.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Validaci\u00f3n de la cuantificaci\u00f3n de la concentraci\u00f3n hep\u00e1tica de hierro mediante resonancia magn\u00e9tica nuclear de 1-tesla<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Validaci\u00f3n de la cuantificaci\u00f3n de la concentraci\u00f3n hep\u00e1tica de hierro mediante resonancia magn\u00e9tica nuclear de 1-tesla <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Agustin Castiella Eguzquiza <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 28\/05\/2013<\/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>Jos\u00e9 Ramon Saenz Dominguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: emilio Perez trallero <\/li>\n<li>mercedes Sota busselo (vocal)<\/li>\n<li>raul Jes\u00fas Andrade bellido (vocal)<\/li>\n<li>m isabel Lucena gonzalez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Agustin Castiella Eguzquiza Introducci\u00f3n: la medici\u00f3n de la concentraci\u00f3n de hierro hep\u00e1tica (chh) por rm es una [&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 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