{"id":5305,"date":"2012-04-13T15:51:35","date_gmt":"2012-04-13T14:51:35","guid":{"rendered":"http:\/\/www.rontgen.com\/wp-doctor\/?p=5305"},"modified":"2012-07-18T14:49:02","modified_gmt":"2012-07-18T13:49:02","slug":"hur-ser-metall-ut-pa-rontgen","status":"publish","type":"post","link":"https:\/\/www.rontgen.com\/wp-doctor\/hur-ser-metall-ut-pa-rontgen","title":{"rendered":"Hur ser metall ut p\u00e5 r\u00f6ntgen"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border-width: 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\" \/>\u00a0Hur ser en metall ut vid en hj\u00e4rnr\u00f6ntgen \u00e4r den vit metallen eller svart?<\/p>\n<div id=\"attachment_5316\" style=\"width: 100px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2012\/04\/becken_hoftprotes_2.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5316\" class=\"size-thumbnail wp-image-5316\" title=\"H\u00f6ftprotes\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2012\/04\/becken_hoftprotes_2-150x150.jpg\" alt=\"H\u00f6ftprotes\" width=\"90\" height=\"90\" \/><\/a><p id=\"caption-attachment-5316\" class=\"wp-caption-text\">H\u00f6ftprotes<\/p><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border-width: 0px;\" title=\"Svar\" src=\"https:\/\/www.rontgen.com\/wp-doctor\/wp-content\/uploads\/2008\/12\/icon_mini_register.gif\" alt=\"\" width=\"12\" height=\"13\" \/>\u00a0Metall\u00a0i en r\u00f6ntgenbild kan avbildas b\u00e5de vitt som svart mot omgivande strukturer. Detta beror p\u00e5 hur man konfigurerat aktuell r\u00f6ntgenmodalitet att visa bilderna f\u00f6r en specifik unders\u00f6kning. Sedan kan man \u00e4ven\u00a0invertera digitala r\u00f6ntgenbilder oavsett den ursprungliga inst\u00e4llningen s\u00e5 man f\u00e5r ut optimal information ur bilden. S\u00e5 metall kan avbildas b\u00e5de vit som svart p\u00e5 bilden. De \u00e4ldre analoga r\u00f6ntgenfilmerna (plastfilm) som framkallades p\u00e5 kemisk v\u00e4g avbildade alltid t\u00e4ta strukturer vitt.<\/p>\n<p>Vad g\u00e4ller r\u00f6ntgenbilder av hj\u00e4rnan \u00e4r dessa antingen CT- eller MR-bilder. Om metall av n\u00e5got slag finns i skallen \u00e4r man v\u00e4ldigt restriktiv med MR s\u00e5 d\u00e5 \u00e4r CT den metod som oftast\u00a0g\u00e4ller. En CT-skalle avbildar hj\u00e4rnan som en gr\u00e5skalebild d\u00e4r t\u00e4tare partier (ben, etc.) avbildas ljusare \u00e4n omgivande mjukdelar som d\u00e5\u00a0avbildas m\u00f6rkare. Metall i bilden blir d\u00e5 helt vitt\u00a0men ger samtidigt mycket st\u00f6rningar i bilden.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"border-width: 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\" \/>K.T. rtgssk<br \/>\nR\u00f6ntgen Helsingborg<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0Hur ser en metall ut vid en hj\u00e4rnr\u00f6ntgen \u00e4r den vit metallen eller [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-5305","post","type-post","status-publish","format-standard","hentry","category-teknik"],"_links":{"self":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/5305","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=5305"}],"version-history":[{"count":0,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/posts\/5305\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/media?parent=5305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/categories?post=5305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rontgen.com\/wp-doctor\/wp-json\/wp\/v2\/tags?post=5305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}