{"id":63718,"date":"2024-12-12T11:04:05","date_gmt":"2024-12-12T05:34:05","guid":{"rendered":"https:\/\/johnsonfrancis.org\/professional\/?p=63718"},"modified":"2024-12-12T11:04:07","modified_gmt":"2024-12-12T05:34:07","slug":"cardiology-mcq-harmonic-imaging","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/cardiology-mcq-harmonic-imaging\/","title":{"rendered":"Cardiology MCQ: Harmonic Imaging"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/kwU8Cb_MfoE?si=oJgW-uwTZU654KMm\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n<p class=\"wp-block-paragraph\">In harmonic imaging, if the frequency of ultrasound transmitted is 2.5 MHz, reception is on:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A. 4 MHz<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B. 5 MHz<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C. 6 MHz<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D. 7 MHz<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Correct answer: B. 5 MHz<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If the transmit and receive frequency are the same in echocardiography, the image quality may be poorer because of higher levels interference and artifacts. In harmonic imaging, reception is on the second harmonic frequency, like 5MHz for a 2.5 MHz transmitted signal, interference and artifacts are lesser, resulting in better image quality. Harmonic imaging is now the norm, compared to the fundamental frequency imaging which was used initially.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In harmonic imaging, if the frequency of ultrasound transmitted is 2.5 MHz, reception is on: A. 4 MHz B. 5 MHz C. 6 MHz D. 7 MHz Correct answer: B. 5 MHz If the transmit and receive frequency are the same in echocardiography, the image quality may be poorer because of higher levels interference and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":63719,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-63718","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cardiology MCQ: Harmonic Imaging - 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