A medical test using ultrasound waves to create images of the heart's structure and function, allowing doctors to see how well it's pumping.
From Greek 'echo' (reflection of sound) + 'cardio' (heart) + '-gram' (recording/image), literally 'heart sound recording.'
Echocardiograms are like ultrasound's superhero application—they can detect heart defects in fetuses before birth, assess damage after heart attacks, and help athletes with mysterious chest pains, all without radiation!
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