{"id":648,"date":"2014-09-25T09:31:28","date_gmt":"2014-09-25T14:31:28","guid":{"rendered":"http:\/\/test.pegasuslectures.com\/blog\/?p=648"},"modified":"2014-09-25T09:31:28","modified_gmt":"2014-09-25T14:31:28","slug":"quick-concepts-constructive-interference","status":"publish","type":"post","link":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/2014\/09\/25\/quick-concepts-constructive-interference\/","title":{"rendered":"Quick Concepts: Constructive Interference"},"content":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" class=\"alignleft wp-image-812\" src=\"https:\/\/test.pegasuslectures.com\/blog\/wp-content\/uploads\/2014\/09\/Harmonic_QC.png\" alt=\"Harmonic_QC\" width=\"308\" height=\"307\" srcset=\"https:\/\/www.pegasuslectures.com\/blog\/wp-content\/uploads\/2014\/09\/Harmonic_QC.png 408w, https:\/\/www.pegasuslectures.com\/blog\/wp-content\/uploads\/2014\/09\/Harmonic_QC-150x150.png 150w, https:\/\/www.pegasuslectures.com\/blog\/wp-content\/uploads\/2014\/09\/Harmonic_QC-300x298.png 300w\" sizes=\"(max-width: 308px) 100vw, 308px\" \/>One of the most powerful concepts used in medicine is that of constructive and destructive interference.\u00a0 People are often amazed at how many different aspects of ultrasound and medicine are based on these principles.<\/p>\n<p>For example, understanding partial and complete constructive\/destructive interference gives you important insight into understanding other important principles such as:<\/p>\n<p><strong>&#8211; Electronic steering and focusing<\/strong><br \/>\n<strong>&#8211; How \u2018narrow\u2019 beams are created<\/strong><br \/>\n<strong>&#8211; Grating lobes and \u2018speckle\u2019 patterns<\/strong><br \/>\n<strong>&#8211; Harmonic Imaging and Pulse\/Phase<\/strong><br \/>\n<strong>\u00a0 Inversion<\/strong><br \/>\n<strong>&#8211; Signal averaging techniques<\/strong><\/p>\n<p><!--more--><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/2TlSxxGkt3E?rel=0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><i>This subject matter is discussed more thoroughly in <a href=\"https:\/\/test.pegasuslectures.com\/faculty\/frank_miele.php\">Frank Miele\u2019s<\/a> <b><a href=\"http:\/\/test.pegasuslectures.com\/product_info.php\/products_id\/52543\">Ultrasound Physics and Instrumentation<\/a> <\/b>.\u00a0 Initially introduced in <strong>Chapter 2: Waves<\/strong> on pages 21-22.\u00a0 More specifically outlined in <strong>Chapter 8: Artifacts<\/strong> during discussions on grating lobes and \u201cspeckle\u201d pattern (pages 282, 286-287). Its application to Harmonic Imaging is outlined in pages 328-333 of <strong>Chapter 10: Contrast and Harmonics<\/strong>.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>One of the most powerful concepts used in medicine is that of constructive and destructive interference.\u00a0 People are often amazed at how many different aspects of ultrasound and medicine are based on these principles. For example, understanding partial and complete &hellip; <a href=\"https:\/\/www.pegasuslectures.com\/blog\/index.php\/2014\/09\/25\/quick-concepts-constructive-interference\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[33,20,2,26],"_links":{"self":[{"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/posts\/648"}],"collection":[{"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=648"}],"version-history":[{"count":24,"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/posts\/648\/revisions"}],"predecessor-version":[{"id":829,"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/posts\/648\/revisions\/829"}],"wp:attachment":[{"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pegasuslectures.com\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}