I just had a Echo cardiogram done today and as I was watching my heart beat, I started to wonder how the machine manages to get the image of my heart. I also wondered how does the imaging not get interrupted by the bone in front of it?
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Are you referring to an echo, or just the EKG? Because they work differently. Electrocardiograms just detect the electric pulses that trigger your heart beat. The only thing the stickers are providing is the line readout. The image of the heart comes from the wand, which uses sonar. The reason the rib cage doesn’t stop it is because it’s actually kind of does. That’s why they have to push into you to go between them. And it’s also not using sound to draw the heart like real sonar does. Rather it listened to the heart and maps it based on where the sound comes from. Basically a more sensitive stethoscope.
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