{"id":1541,"date":"2010-03-01T10:17:35","date_gmt":"2010-03-01T09:17:35","guid":{"rendered":"http:\/\/www.rontgen.com\/wp-doctor\/?p=1541"},"modified":"2011-04-21T22:45:37","modified_gmt":"2011-04-21T21:45:37","slug":"petct","status":"publish","type":"post","link":"https:\/\/www.rontgen.com\/wp-doctor\/petct","title":{"rendered":"PET\/CT"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border: 0px;\" title=\"Fr\u00e5ga\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_faq.gif\" alt=\"Fr\u00e5ga\" width=\"12\" height=\"13\" \/> Hur g\u00e5r en PET\/CT-r\u00f6ntgen till? Ska om ett par veckor ner till Akademiska i Uppsala f\u00f6r unders\u00f6kning.<br \/>\nHar tidigare gjort b\u00e5de CT och MR och undrar om det \u00e4r stor skillnad? Det jag vet \u00e4r at det kommer att injicera glukos ist\u00e4llet f\u00f6r kontrast, men mer \u00e4n s\u00e5 vet jag inte. \u00c4r &#8221;tunneln&#8221; lika stor som vid MR? M\u00e5ste man fast inf\u00f6r unders\u00f6kningen?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border: 0px;\" title=\"Svar\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_register.gif\" alt=\"Svar\" width=\"12\" height=\"13\" \/> Vi har ingen PET\/CT s\u00e5 vi \u00e4r inga experter p\u00e5 denna teknik.<\/p>\n<p>Detta \u00e4r ju en kombination av Positron emission tomografi (PET), en form av gammakamera, och datortomografi (CT\/r\u00f6ntgen).<br \/>\nMan sprutar in ett radioaktiv \u00e4mne (sp\u00e5r\u00e4mne bundet med sockermolekyler) i blodet som tas upp i omr\u00e5den med h\u00f6g cellaktivitet\/\u00e4mnesoms\u00e4ttning. PET kameran registrerar d\u00e5 var dessa omr\u00e5den \u00e4r samt hur stor aktiviteten \u00e4r\u00a0i ev. f\u00f6r\u00e4ndringar. Samtidigt f\u00e5r man vanliga skiktr\u00f6ntgenbilder (CT).<br \/>\nMed denna kombination kan man se exakt lokalisation av ev. f\u00f6r\u00e4ndringar som annars, med enbart CT\/MR, kanske inte synts, hade tolkats som normala fynd eller som st\u00f6rning (r\u00f6relseartefakter, metall, etc.)\u00a0i bilderna.<\/p>\n<p>Patienten f\u00e5r f\u00f6rutom den radioaktiva substansen ofta \u00e4ven intraven\u00f6s jodkontrastmedel, som vid &#8221;vanlig&#8221; CT-unders\u00f6kning. Oftast beh\u00f6vs fasta innan unders\u00f6kningen f\u00f6r att s\u00e4nka glukosniv\u00e5n i blodet.<br \/>\nUnders\u00f6kningen tar ca. 15-30 minuter beroende p\u00e5 vilket\/vilka organ som ska unders\u00f6kas samt typ av maskin (ny eller gammal).<\/p>\n<p>PET\/CT maskinen ser ut som ett mellanting av CT och MR. &#8221;Tunneln&#8221; \u00e4r n\u00e5got kortare \u00e4n MR men n\u00e5got l\u00e4ngre \u00e4n CT\u00b4s. Diametern p\u00e5 \u00f6ppningen \u00e4r i stort densamma.<\/p>\n<p>Du kan l\u00e4sa mer p\u00e5\u00a0 <a title=\"Sk\u00e5nes Universitetssjukhus\" href=\"http:\/\/www.skane.se\/templates\/page.aspx?id=254114\" target=\"_blank\">Sk\u00e5nes Universitetssjukhus<\/a>.<\/p>\n<p><a href=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_profile.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border: 0px;\" title=\"Svarat av\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_profile.gif\" alt=\"Svarat av\" width=\"12\" height=\"13\" \/><\/a> K.T. rtgssk<br \/>\nR\u00f6ntgenavdelningen Helsingborgs lasarett<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hur g\u00e5r en PET\/CT-r\u00f6ntgen till? Ska om ett par veckor ner till Akademiska [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[142,141,28,24],"class_list":["post-1541","post","type-post","status-publish","format-standard","hentry","category-annat","tag-ct","tag-mr","tag-pet-ct","tag-undersokning"],"_links":{"self":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/1541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/comments?post=1541"}],"version-history":[{"count":0,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/1541\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/media?parent=1541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/categories?post=1541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/tags?post=1541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}