{"id":81586,"date":"2018-05-18T12:27:42","date_gmt":"2018-05-18T12:27:42","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/pet-rmn-si-ct\/"},"modified":"2018-05-18T12:27:42","modified_gmt":"2018-05-18T12:27:42","slug":"pet-rmn-si-ct","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/","title":{"rendered":"PET, RMN \u0219i CT"},"content":{"rendered":"<p>\u00ce: Care este diferen\u021ba dintre scan\u0103rile PET, RMN \u0219i CT? Sunt trei metode care realizeaz\u0103 acela\u0219i scop sau exist\u0103 o diferen\u021b\u0103 \u00eentre ele?<\/p>\n<p>&nbsp;<\/p>\n<p>A: Stimate utilizator, PET, imagistica prin rezonan\u021b\u0103 magnetic\u0103 (RMN) \u0219i CT sunt toate metode de diagnosticare a imaginii, care sunt utilizate pentru studierea diferitelor boli. In mod specific, emisia de PET (tomografie cu pozitroni) este o tehnica de medicina nucleara care foloseste materiale radioactive pentru a vedea procesele metabolice ale pacientului in organism. Marcajele utilizate pentru PET sunt de diferite tipuri, dar fiecare are caracteristici care le permit s\u0103 vad\u0103 anumite func\u021bii specifice ale corpului uman sau ale diferitelor \u021besuturi. De exemplu, FDG (fluorodeoxiglucoz\u0103) marcat\u0103 cu fluor 18 (radioactiv) serve\u0219te pentru a observa metabolismul glucozei, astfel imaginea PET cu FDG ne furnizeaz\u0103 o hart\u0103 a distribu\u021biei trasorului \u00eempreun\u0103 cu activitatea metabolic\u0103 a diferitelor \u021besuturi. PET este o metod\u0103 func\u021bional\u0103 pentru observarea func\u021biei \u021besuturilor \u0219i organelor.<\/p>\n<p>Scanarea CT sau tomografia computerizat\u0103 fac o alt\u0103 utilizare a radia\u021biilor. Se utilizeaz\u0103 practic un fascicul de electroni pentru a produce radia\u021bii (fotoni X) care provin dincolo de corpul pacientului pentru a vedea densitatea \u021besuturilor \u0219i a organelor lor. Deci, spre deosebire de PET, \u00een care pacientul supus radioactivit\u0103\u021bii, radia\u021bia din CT provine din exterior. Atunci c\u00e2nd radia\u021bia traverseaz\u0103 caroseria uman\u0103 aflat\u0103 \u00een examinare (de exemplu, \u00een timpul unei scan\u0103ri CT toracice), sunt generate imagini fotografice. Principiul este la fel ca o scanare cu raze X, cu toate acestea, imaginile CT ob\u021binute sunt la 360 \u00b0 \u00een jurul corpului (de aici termenul de &#8220;tomografie&#8221;). Fiecare sec\u021biune transversal\u0103 are un indice diferit de atenuare a radia\u021biei transmise din exterior, astfel \u00eenc\u00e2t &#8220;fotografia&#8221; ob\u021binut\u0103 arat\u0103 o reconstruc\u021bie substan\u021bial\u0103 a morfologiei \u021besuturilor \u0219i organelor \u00een cauz\u0103. \u00cen ansamblu, CT este o metod\u0103 morfologic\u0103. Abilitatea de a injecta substan\u021be intravenos sau oral (medii de contrast), care modific\u0103 atenuarea districtele \u00een care sunt amplasate, permit o mai mare precizie a scan\u0103rii CT, diferen\u021biind p\u0103r\u021bi ale \u021besuturilor de vasculare.RMN sau Rezonan\u021b\u0103 magnetic\u0103, este un test care utilizeaz\u0103 un c\u00e2mp electromagnetic pentru a produce diverse r\u0103spunsuri sau imagini ale structurilor din interiorul corpului. R\u0103spunsul la diferi\u021bi stimuli este diferit pentru fiecare tip de compozi\u021bie de \u021besut \u0219i astfel ne permite s\u0103 realiz\u0103m o reconstruc\u021bie chiar \u0219i \u00een aceste cazuri care implic\u0103 morfologia \u0219i func\u021bia organelor \u0219i a \u021besutului corporal. Sunt utiliza\u021bi agen\u021bi de contrast, care prezint\u0103 \u00een mod diferit caracteristici &#8220;magnetice&#8221; \u0219i permit o mai mare precizie a scan\u0103rii IRM, diferen\u021biind p\u0103r\u021bi ale \u021besuturilor de vasculare.<\/p>\n<p>&nbsp;<\/p>\n<p>Ceea ce ofer\u0103 aceste trei metode din punct de vedere diagnostic este foarte diferit: PET observ\u0103 func\u021bia \u021besuturilor, CT define\u0219te aspectul \u021besuturilor, iar RMN-ul are ambele, de\u0219i r\u0103m\u00e2ne o metod\u0103 morfologic\u0103. Evident, utilizarea unei metode fa\u021b\u0103 de celelalte depinde de boala \u00een cauz\u0103 \u0219i de istoricul medical al pacientului. Toate cele bune.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1795],"class_list":["post-81586","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-intrebari-frecvente"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PET, RMN \u0219i CT - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PET, RMN \u0219i CT - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"\u00ce: Care este diferen\u021ba dintre scan\u0103rile PET, RMN \u0219i CT? Sunt trei metode care realizeaz\u0103 acela\u0219i scop sau exist\u0103 o diferen\u021b\u0103 \u00eentre ele? &nbsp; A: Stimate utilizator, PET, imagistica prin rezonan\u021b\u0103 magnetic\u0103 (RMN) \u0219i CT sunt toate metode de diagnosticare a imaginii, care sunt utilizate pentru studierea diferitelor boli. In mod specific, emisia de PET [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/\" \/>\n<meta property=\"og:site_name\" content=\"Humanitas.net\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/HumanitasInternational\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@humanitasmilano\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/\",\"name\":\"PET, RMN \u0219i CT - Humanitas.net\",\"isPartOf\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#website\"},\"datePublished\":\"2018-05-18T12:27:42+00:00\",\"dateModified\":\"2018-05-18T12:27:42+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/#breadcrumb\"},\"inLanguage\":\"ro-RO\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/pet-rmn-si-ct\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Enciclopedia\",\"item\":\"https:\/\/humanitas-net.humweb.webiz.team\/enciclopedia\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PET, RMN \u0219i CT\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#website\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/\",\"name\":\"Humanitas.net\",\"description\":\"Humanitas Hospital\",\"publisher\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/humanitas-net.humweb.webiz.team\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ro-RO\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#organization\",\"name\":\"Humanitas\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ro-RO\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/wp-content\/uploads\/2025\/01\/new-humanitas-logo-1.svg\",\"contentUrl\":\"https:\/\/humanitas-net.humweb.webiz.team\/wp-content\/uploads\/2025\/01\/new-humanitas-logo-1.svg\",\"width\":1,\"height\":1,\"caption\":\"Humanitas\"},\"image\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/HumanitasInternational\/\",\"https:\/\/x.com\/humanitasmilano\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"PET, RMN \u0219i CT - Humanitas.net","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"ro_RO","og_type":"article","og_title":"PET, RMN \u0219i CT - Humanitas.net","og_description":"\u00ce: Care este diferen\u021ba dintre scan\u0103rile PET, RMN \u0219i CT? Sunt trei metode care realizeaz\u0103 acela\u0219i scop sau exist\u0103 o diferen\u021b\u0103 \u00eentre ele? &nbsp; A: Stimate utilizator, PET, imagistica prin rezonan\u021b\u0103 magnetic\u0103 (RMN) \u0219i CT sunt toate metode de diagnosticare a imaginii, care sunt utilizate pentru studierea diferitelor boli. 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