https://www.heart.org/en/health-topics/heart-attack/diagnosing-a-heart-attack/echocardiogram
Echocardiogram (Echo) | American Heart Association
An echocardiogram (echo) is a test that uses high frequency sound waves (ultrasound) to make pictures of your heart.
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https://www.medicalnewstoday.com/articles/326727
What is an echocardiogram? Uses, procedure, and results
Apr 24, 2025 - An echocardiogram is an ultrasound image of the heart. It can help doctors diagnose a range of heart problems. Read more.
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https://www.lung.org/lung-health-diseases/lung-procedures-and-tests/echocardiogram
What is an Echocardiogram (Echo)? | American Lung Association
Your health care provider may order an echocardiogram to look at your heart’s structure and determine how well your heart is functioning.
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