{"id":3067,"date":"2010-12-27T16:01:44","date_gmt":"2010-12-27T15:01:44","guid":{"rendered":"http:\/\/www.rontgen.com\/wp-doctor\/?p=3067"},"modified":"2026-01-05T01:00:47","modified_gmt":"2026-01-05T00:00:47","slug":"kontrastens-vag-till-levern","status":"publish","type":"post","link":"https:\/\/www.rontgen.com\/wp-doctor\/kontrastens-vag-till-levern","title":{"rendered":"Kontrastens v\u00e4g till levern"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border: 0pt none;\" title=\"Fr\u00e5ga\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_faq.gif\" alt=\"\" width=\"12\" height=\"13\" \/> Har en fr\u00e5ga om kontrast. Vilken v\u00e4g tar kontrasten som ges n\u00e4r man ska unders\u00f6ka lungorna med lungemboli och vilken v\u00e4g ska den g\u00e5 f\u00f6r att n\u00e5 levern?<\/p>\n<div id=\"attachment_3103\" style=\"width: 100px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/12\/angio_lever_1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3103\" class=\"size-thumbnail wp-image-3103\" title=\"angio_lever_1\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/12\/angio_lever_1-150x150.jpg\" alt=\"Angiografi\" width=\"90\" height=\"90\" srcset=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/12\/angio_lever_1-150x150.jpg 150w, https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/12\/angio_lever_1-300x300.jpg 300w, https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2010\/12\/angio_lever_1.jpg 500w\" sizes=\"auto, (max-width: 90px) 100vw, 90px\" \/><\/a><p id=\"caption-attachment-3103\" class=\"wp-caption-text\">Leverart\u00e4rer<\/p><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border: 0pt none;\" title=\"Svar\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_register.gif\" alt=\"\" width=\"12\" height=\"13\" \/> Vid lungemboli unders\u00f6ker man lungart\u00e4rerna med kontrastmedel. Det \u00e4r dessa blodk\u00e4rl som f\u00f6r blod fr\u00e5n hj\u00e4rtat ut i lungorna d\u00e4r proppar kan s\u00e4tta sig.<br \/>\nUnders\u00f6kningen \u00e4r optimerad s\u00e5 att vid bildtagningen ska det finnas st\u00f6rst kontrastm\u00e4ngd i just lungart\u00e4rerna. Andra organs &#8221;kontrastfyllnad&#8221; \u00e4r d\u00e5 oftast av underordnad betydelse.<br \/>\nKontrasten kommer till lungorna fr\u00e5n hj\u00e4rtats h\u00f6gra del <span style=\"font-size: 10pt;\">(kammare)<\/span>. Efter att blodet varit ute i lungv\u00e4vnaden g\u00e5r sedan kontrasten tillbaka via lungvenerna till hj\u00e4rtats v\u00e4nstra f\u00f6rmak.<\/p>\n<p>Fr\u00e5n hj\u00e4rtat v\u00e4nstra kammare f\u00f6ljer kontrasten sedan med blodfl\u00f6det ut i stora kroppspuls\u00e5dern <span style=\"font-size: 10pt;\">(aorta)<\/span> till \u00f6vriga kroppen.<br \/>\nFr\u00e5n aorta i niv\u00e5 strax nedom diafragman g\u00e5r kontrastblandad blod ut till levern, mags\u00e4cken och bukspottk\u00f6rteln via bukin\u00e4lvsart\u00e4ren <span style=\"font-size: 10pt;\">(truncus coeliacus)<\/span> och sedan till leverart\u00e4ren <span style=\"font-size: 10pt;\">(a.hepatica)<\/span>. Hit tar det ca. 20-30 sekunder fr\u00e5n det att kontrasten sprutas in via en n\u00e5l i armen.<br \/>\nEtt annan s\u00e4tt f\u00f6r kontrast <span style=\"font-size: 10pt;\">(och blod)<\/span> att n\u00e5 levern \u00e4r via den sk. port\u00e5dern. Denna f\u00f6r ven\u00f6st blod fr\u00e5n mags\u00e4cken, tarmar, bukspottk\u00f6rteln och mj\u00e4lten till levern men \u00e4ven med \u00e4mnen fr\u00e5n absorberade f\u00f6do\u00e4mnen i tarmarna.<br \/>\nTills det att kontrasten kommer till port\u00e5dern tar det ca. 50-60 sekunder.<br \/>\nEfter passerat levern g\u00e5r blod tillbaka till nedre h\u00e5lvenen, via levervenen, upp till hj\u00e4rtat f\u00f6r ett nytt kretslopp.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border: 0pt none;\" title=\"Svarat av\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_profile.gif\" alt=\"\" width=\"12\" height=\"13\" \/> K.T. rtgssk<br \/>\nR\u00f6ntgenavdelningen Helsingborgs lasarett<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Har en fr\u00e5ga om kontrast. Vilken v\u00e4g tar kontrasten som ges n\u00e4r man [&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":[38,24],"class_list":["post-3067","post","type-post","status-publish","format-standard","hentry","category-annat","tag-kontrast","tag-undersokning"],"_links":{"self":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/3067","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=3067"}],"version-history":[{"count":0,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/3067\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/media?parent=3067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/categories?post=3067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/tags?post=3067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}