{"id":1968,"date":"2021-01-27T22:05:56","date_gmt":"2021-01-27T22:05:56","guid":{"rendered":"http:\/\/heartfailurematters.local:8888\/tecnicas-de-medicina-nuclear\/"},"modified":"2022-01-24T16:35:06","modified_gmt":"2022-01-24T16:35:06","slug":"tecnicas-de-medicina-nuclear","status":"publish","type":"page","link":"https:\/\/www.heartfailurematters.org\/pt-pt\/o-que-e-a-insuficiencia-cardiaca\/tecnicas-de-medicina-nuclear\/","title":{"rendered":"T\u00e9cnicas de medicina nuclear"},"content":{"rendered":"<p><a class=\"addtooltip\" title=\"Exame que utiliza quantidades muito pequenas de subst\u00e2ncias radioativas para tornar vis\u00edveis o m\u00fasculo card\u00edaco, as c\u00e2maras e os vasos sangu\u00edneos.\"><strong>Ventriculografia de radionucl\u00eddeos<\/strong><\/a> (por vezes designada por MIBI) \u00e9 um exame que utiliza quantidades muito pequenas de materiais radioativos, conhecidos como marcadores, para tornar vis\u00edveis o cora\u00e7\u00e3o e os vasos sangu\u00edneos. Este exame avalia a fun\u00e7\u00e3o card\u00edaca.\u00a0<a class=\"addtooltip\" title=\"Exame que avalia o fluxo sangu\u00edneo para o m\u00fasculo card\u00edaco em repouso e durante uma prova de esfor\u00e7o. Normalmente, este procedimento implica a inje\u00e7\u00e3o de uma subst\u00e2ncia radioativa.\"><strong>Os exames de perfus\u00e3o<\/strong><\/a> mostrar\u00e3o o fluxo sangu\u00edneo no m\u00fasculo card\u00edaco e poder\u00e3o detetar \u00e1reas de fluxo sangu\u00edneo insuficiente (<a class=\"addtooltip\" title=\"Perda ou redu\u00e7\u00e3o do fluxo sangu\u00edneo (e por conseguinte, de oxig\u00e9nio) para os tecidos.\"><strong>isquemia<\/strong><\/a>). Em ambos os exames, s\u00e3o injetados marcadores na veia, que s\u00e3o controlados at\u00e9 ao cora\u00e7\u00e3o atrav\u00e9s de c\u00e2maras ou scanners especiais.<\/p>\n<p>Normalmente, o exame \u00e9 feito em repouso e possivelmente de novo com prova de esfor\u00e7o ou ap\u00f3s a toma de determinados medicamentos. Poder\u00e1 ser-lhe pedido para n\u00e3o ingira alimentos ou bebidas que contenham cafe\u00edna ou \u00e1lcool durante v\u00e1rias horas antes dos exames. Dever\u00e1 tomar os medicamentos di\u00e1rios, exceto se receber instru\u00e7\u00f5es em contr\u00e1rio.<\/p>\n<p>As t\u00e9cnicas de medicina nuclear comportam apenas um risco muito baixo de complica\u00e7\u00f5es, na medida em que a quantidade de radia\u00e7\u00e3o \u00e9 bastante baixa.<\/p>\n<table border=\"1\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"100%\"><img decoding=\"async\" class=\"alignnone size-full wp-image-6515\" src=\"https:\/\/cdn-endpoint-hfm.azureedge.net\/heartfailurematters\/2021\/02\/Patient-having-the-MUGA-scan.jpg\" alt=\"\" width=\"211\" height=\"206\" \/><\/td>\n<\/tr>\n<tr>\n<td width=\"100%\"><span class=\"caption\">\u00a9 Siemens<\/span><br \/>\n<span style=\"font-size: medium;\">Doente a ter um exame de MIBI<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"100%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"100%\"><img decoding=\"async\" class=\"alignnone size-full wp-image-6525\" src=\"https:\/\/cdn-endpoint-hfm.azureedge.net\/heartfailurematters\/2021\/02\/Example-of-a-MUGA-scan.jpg\" alt=\"\" width=\"211\" height=\"206\" \/><\/td>\n<\/tr>\n<tr>\n<td width=\"100%\"><span class=\"caption\">\u00a9 Texas Heart Institute<\/span><br \/>\nE<span style=\"font-size: medium;\">exemplo de um exame de MIBI<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/www.heartfailurematters.org\/pt-pt\/o-que-e-a-insuficiencia-cardiaca\/exames-comuns-para-detetar-a-insuficiencia-cardiaca\/\"> Voltar \u00e0 sec\u00e7\u00e3o Exames comuns para detetar a insufici\u00eancia card\u00edaca<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ventriculografia de radionucl\u00eddeos (por vezes designada por MIBI) \u00e9 um exame que utiliza quantidades muito pequenas de materiais radioativos, conhecidos como marcadores, para tornar vis\u00edveis o cora\u00e7\u00e3o e os vasos sangu\u00edneos. Este exame avalia a fun\u00e7\u00e3o card\u00edaca.\u00a0Os exames de perfus\u00e3o mostrar\u00e3o o fluxo sangu\u00edneo no m\u00fasculo card\u00edaco e poder\u00e3o detetar \u00e1reas de fluxo sangu\u00edneo insuficiente [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10699,"parent":1889,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-1968","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>T\u00e9cnicas de medicina nuclear para a insufici\u00eancia card\u00edaca<\/title>\n<meta name=\"description\" content=\"Ventriculografia com radionucl\u00eddeos \u00e9 um teste que usa quantidades m\u00ednimas de materiais radioativos (marcadores), para visualizar o cora\u00e7\u00e3o e vasos 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