{"id":2390,"date":"2010-09-20T11:57:49","date_gmt":"2010-09-20T10:57:49","guid":{"rendered":"http:\/\/www.rontgen.com\/wp-doctor\/?p=2390"},"modified":"2010-09-28T23:36:14","modified_gmt":"2010-09-28T22:36:14","slug":"kontrastmedel-2","status":"publish","type":"post","link":"https:\/\/www.rontgen.com\/wp-doctor\/kontrastmedel-2","title":{"rendered":"Kontrastmedel"},"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=\"\" width=\"12\" height=\"13\" \/>\u00a0Vid vilka unders\u00f6kningar anv\u00e4nds kontrastmedel, och vad \u00e4r kontrastmedel f\u00f6r n\u00e5got? Vad inneh\u00e5ller det, vad g\u00f6r kontrastmedelt?<\/p>\n<div id=\"attachment_2404\" style=\"width: 100px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/09\/utan_ivk.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2404\" class=\"size-thumbnail wp-image-2404  \" title=\"CT utan kontrast\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/09\/utan_ivk-150x150.jpg\" alt=\"\" width=\"90\" height=\"90\" \/><\/a><p id=\"caption-attachment-2404\" class=\"wp-caption-text\">CT utan kontrast<\/p><\/div>\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=\"\" width=\"12\" height=\"13\" \/>\u00a0Det finns tv\u00e5 stora grupper kontrastmedel, vattenl\u00f6sliga och ej vattenl\u00f6sliga.<br \/>\nDen vattenl\u00f6sliga varianten, som kroppen g\u00f6r sig av med via urinen,\u00a0sprutas oftast in i blodet. Den &#8221;vanliga&#8221; vattenl\u00f6sliga kontrastmedlet\u00a0inneh\u00e5ller bla.\u00a0jod som \u00e4r ett &#8221;t\u00e4tt \u00e4mne&#8221;. N\u00e4r detta t\u00e4ta \u00e4mne flyter eller har tagits upp av n\u00e5got organ bromsas r\u00f6ntgenstr\u00e5len upp h\u00e4r. Detta g\u00f6r att man f\u00e5r st\u00f6rre kontrastskillnader i bilden \u00e4n man f\u00e5r utan eller omkring\u00a0det omr\u00e5de med kontrastmedel. Denna kontrastsort anv\u00e4nds vid bla. datortomografi. Tex. tum\u00f6rer\u00a0har oftast v\u00e4ldigt\u00a0mycket nya\u00a0blodk\u00e4rl och &#8221;laddar&#8221; d\u00e5 upp av kontrastmedel vilket g\u00f6r att de oftast d\u00e5 kan ses p\u00e5 bilderna.<br \/>\nKontrastmedel f\u00f6r MR \u00e4r \u00e4ven detta vattenl\u00f6sligt och inneh\u00e5ller \u00e4mnen (exv. Gadoliniumf\u00f6reningar) som p\u00e5verkar den magnetiska responsen.<\/p>\n<div id=\"attachment_2405\" style=\"width: 100px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/09\/med_ivk.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2405\" class=\"size-thumbnail wp-image-2405  \" title=\"CT med kontrast\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/09\/med_ivk-150x150.jpg\" alt=\"\" width=\"90\" height=\"90\" \/><\/a><p id=\"caption-attachment-2405\" class=\"wp-caption-text\">CT med kontrast<\/p><\/div>\n<p>Kontrastmedel f\u00f6r ultraljud (vattenl\u00f6sligt)\u00a0inneh\u00e5ller &#8221;miljoner&#8221;\u00a0mikroskopiska luftbubblor. Luft fungerar som kontrast i ultraljudsbilden.<br \/>\nBariumsulfat \u00e4r en jordmetall och \u00e4r n\u00e4stintill helt ol\u00f6sligt i vatten. Barium\u00a0f\u00e5r endast anv\u00e4ndas inom mage och tarm. Denna kontrast antingen dricker man eller f\u00e5r det insprutat i mags\u00e4cken\/tarmen via n\u00e5gon typ av sond\/pip. Barium g\u00f6r kroppen sig av med via avf\u00f6ringen.<\/p>\n<p>Sammanfattningsvis \u00e4r kontrastmedel till f\u00f6r att \u00e4ndra kontrastskillnaderna i bilderna. Dvs. skilnnaderna mellan vit och svart som p\u00e5 r\u00f6ntgenbilden \u00e4r en bild uppbyggt av en mycket\u00a0omfattande gr\u00e5skala.<\/p>\n<p><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=\"\" width=\"12\" height=\"13\" \/>\u00a0K.T. rtgssk<br \/>\nR\u00f6ntgenavdelningen Helsingborgs lasarett<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0Vid vilka unders\u00f6kningar anv\u00e4nds kontrastmedel, och vad \u00e4r kontrastmedel f\u00f6r n\u00e5got? Vad inneh\u00e5ller [&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":[38,145],"class_list":["post-2390","post","type-post","status-publish","format-standard","hentry","category-annat","tag-kontrast","tag-teknik"],"_links":{"self":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/2390","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=2390"}],"version-history":[{"count":0,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/2390\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/media?parent=2390"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/categories?post=2390"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/tags?post=2390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}