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Understanding ECG vs Echo-Cardiography: Which Cardiac Test Do You Need?

By Dr. Sankha Subhra Das (M.D., DTCD, MRCP, DNB (Cardiology)) • Published: Oct 10, 2026 • 4 min read Read
Understanding ECG vs Echo-Cardiography: Which Cardiac Test Do You Need?

Cardiovascular health screening forms the cornerstone of preventive healthcare. Patients frequently ask whether a standard Electrocardiogram (ECG) is sufficient or if an Echocardiogram (Echo) is necessary.

Electrocardiogram (ECG)

An ECG records the electrical signals of your heart to check for abnormal heart rhythms, past heart attacks, and electrical conduction delays. It is a quick 5-minute screening test.

Echocardiography (Colour Doppler USG)

An Echocardiogram uses ultrasound waves to produce live visual images of your heart’s chambers, valves, wall movement, and blood pumping efficiency (Ejection Fraction).

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