1.0All About Heart And Blood Vesselshttps://johnsonfrancis.org/generalJohnson Francishttps://johnsonfrancis.org/general/author/jf/rich600338<blockquote class="wp-embedded-content" data-secret="1ddF0KOx7H"><a href="https://johnsonfrancis.org/general/what-is-an-echocardiogram/">What is an echocardiogram?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://johnsonfrancis.org/general/what-is-an-echocardiogram/embed/#?secret=1ddF0KOx7H" width="600" height="338" title="“What is an echocardiogram?” — All About Heart And Blood Vessels" data-secret="1ddF0KOx7H" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://johnsonfrancis.org/general/wp-includes/js/wp-embed.min.js </script> https://johnsonfrancis.org/general/wp-content/uploads/2021/11/What-is-an-echocardiogram.jpg1204675What is an echocardiogram? Echocardiogram is an ultrasound imaging of the heart. Ultrasound is high frequency sound wave which is not audible to the human ear. The machine sends out ultrasound beams intermittently to the heart and listens for the echo. Computer synthesised images are then produced from the echoes received from various parts of […]