{"id":25755,"date":"2018-03-09T09:17:16","date_gmt":"2018-03-09T09:17:16","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-comparativo-entre-descriptores-mamograficos-y-ecograficos-para-la-evaluacion-de-lesiones-nodulares-solidas\/"},"modified":"2018-03-09T09:17:16","modified_gmt":"2018-03-09T09:17:16","slug":"analisis-comparativo-entre-descriptores-mamograficos-y-ecograficos-para-la-evaluacion-de-lesiones-nodulares-solidas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-comparativo-entre-descriptores-mamograficos-y-ecograficos-para-la-evaluacion-de-lesiones-nodulares-solidas\/","title":{"rendered":"Analisis comparativo entre descriptores mamogr\u00e1ficos y ecogr\u00e1ficos para la evaluaci\u00f3n de lesiones nodulares s\u00f3lidas"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Garc\u00eda Espona Miguel Angel <\/strong><\/h2>\n<p>La mamograf\u00eda es la t\u00e9cnica de imagen con mayor validez en el diagn\u00f3stico de las lesiones mamarias. La ultrasonograf\u00eda ayuda a diferenciar la naturaleza benigna o maligna de un tumor s\u00f3lido y puede incrementar la especificidad de las alteraciones detectadas cl\u00ednica o mamogr\u00e1ficamente.  realizamos un estudio doble ciego para tratar de comparar si los t\u00e9rminos utilizados para el diagn\u00f3stico de la patolog\u00eda mamaria empleado en mamograf\u00eda implantado por el colegio americano de radi\u00f3logos con el l\u00e9xico birads (breast imaging reporting and data system) podr\u00edan utilizarse tambi\u00e9n en ultrasonograf\u00eda, implicando con ello una disminuci\u00f3n en la variabilidad al asignar la valoraci\u00f3n pron\u00f3stica. Hasta la fecha no hay estudios publicados espec\u00edficos sobre este tema.  la muestra es de 100 n\u00f3dulos s\u00f3lidos mamarios, en mujeres mayores de 30 a\u00f1os, todos con correlaci\u00f3n anatomo-patol\u00f3gica (gold-standard). El 60% fueron lesiones malignas (con predominio del ca.Ductal infiltrante, seguido del ca.Lobular) y el 40% lesiones benignas (predominio de fibroadenomas y trastornos fibroqu\u00edsticos).  la mamograf\u00eda present\u00f3 una sensibilidad del 88,3%, una especificidad del 92,5%, un vpp de 94,6% y un vpn del 92,5%. La ultrasonograf\u00eda obtuvo una sensibilidad superior a la mamograf\u00eda, de hasta el 93,3%, si bien lo hace a expensas de disminuir moderadamente la especificidad (90%), obteniendo un vpp del 90% y un vpn del 93,3%.  la concordancia entre las t\u00e9cnicas de imagen para describir la forema (k=0,323) y los m\u00e1rgenes (k=0,340) fue discreta con un mayor grado de acuerdo para las categor\u00edas extremas del gradiente pron\u00f3stico. En la ecogenicidad y la densidad del tumor existe una baj\u00edsima concordancia (k=0,081), ya que no son par\u00e1metros comparables y para valorar la estructura interna del tumor tambi\u00e9n existi\u00f3 un grado de acuerdo escaso (k=0,15). Sin embargo para la valoraci\u00f3n pron\u00f3stica de la lesi\u00f3n, la concordancia entre las t\u00e9c<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Analisis comparativo entre descriptores mamogr\u00e1ficos y ecogr\u00e1ficos para la evaluaci\u00f3n de lesiones nodulares s\u00f3lidas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Analisis comparativo entre descriptores mamogr\u00e1ficos y ecogr\u00e1ficos para la evaluaci\u00f3n de lesiones nodulares s\u00f3lidas <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Garc\u00eda Espona Miguel Angel <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 25\/09\/2003<\/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>contreras Pelayo Rodr\u00edguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: blas Gil extremera <\/li>\n<li> Mart\u00ednez coronel Juan  Francisco (vocal)<\/li>\n<li>Jos\u00e9 Vicente rull (vocal)<\/li>\n<li>gerardo Moreno terribas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Garc\u00eda Espona Miguel Angel La mamograf\u00eda es la t\u00e9cnica de imagen con mayor validez en el diagn\u00f3stico [&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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