{"id":2993,"date":"2009-09-16T08:42:48","date_gmt":"2009-09-16T08:42:48","guid":{"rendered":"http:\/\/cardiophile.org\/?p=2993"},"modified":"2009-09-16T08:42:48","modified_gmt":"2009-09-16T08:42:48","slug":"colour-doppler-echocardiography-in-tetralogy-of-fallot-in-parasternal-long-axis-view","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/colour-doppler-echocardiography-in-tetralogy-of-fallot-in-parasternal-long-axis-view\/","title":{"rendered":"Colour Doppler echocardiography in Tetralogy of Fallot in parasternal long axis view"},"content":{"rendered":"<h2><span style=\"color: #008000;\">Colour Doppler echocardiography in Tetralogy of Fallot in parasternal long axis view<\/span><\/h2>\n<h3><span style=\"color: #3366ff;\">Echocardiogram with video<\/span><\/h3>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/YyZqgzfwXZw?rel=0\" width=\"420\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<figure id=\"attachment_37440\" aria-describedby=\"caption-attachment-37440\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-37440\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2009\/09\/Tetralogy-of-Fallot-with-right-to-left-shunt-across-the-ventricular-septal-defect.png\" alt=\"Tetralogy of Fallot with right to left shunt across the ventricular septal defect\" width=\"1200\" height=\"1306\" \/><figcaption id=\"caption-attachment-37440\" class=\"wp-caption-text\">Tetralogy of Fallot with right to left shunt across the ventricular septal defect<\/figcaption><\/figure>\n<p>The blue colour is the flow of blood from right ventricle (RV) across the ventricular septal defect into the overriding aorta. This causes desaturation of aortic blood and cyanosis in Tetralogy of Fallot. The blood from the right ventricle preferentially enters the aorta which is overriding the ventricular septal defect (VSD) because the right ventricular outflow tract is narrowed in Tetralogy of Fallot as result of infundibular stenosis. The live colour Doppler video below shows the blue flow from RV to aorta across the VSD. Encoding in colour Doppler is blue for flow away from the transducer (located at the top of the sector) and red for flow towards the transducer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Colour Doppler echocardiography in Tetralogy of Fallot in parasternal long axis view with video. <\/p>\n","protected":false},"author":1,"featured_media":37440,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[25,8],"tags":[],"class_list":["post-2993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-echocardiogram-library-echocardiogram-library","category-echocardiogram-library"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Colour Doppler echo in Tetralogy of Fallot in PLAX view<\/title>\n<meta name=\"description\" content=\"Colour Doppler echocardiography in Tetralogy of Fallot in parasternal long axis view.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/professional\/colour-doppler-echocardiography-in-tetralogy-of-fallot-in-parasternal-long-axis-view\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Colour Doppler echo in Tetralogy of Fallot in PLAX view\" \/>\n<meta property=\"og:description\" content=\"Colour Doppler echocardiography in Tetralogy of Fallot in parasternal long axis view.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/professional\/colour-doppler-echocardiography-in-tetralogy-of-fallot-in-parasternal-long-axis-view\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Cardiovascular System and Disorders\" \/>\n<meta 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