Q. How is an ECG different from other cardiac tests?
Doctor Answer is medically reviewed by SecondMedic medical review team.
An Electrocardiogram (ECG) is a vital cardiac test, but it differs from other heart tests in several ways.
ECG vs. Stress Test:
An ECG measures your heart's electrical activity at rest. In contrast, a stress test assesses how your heart performs under physical stress, typically on a treadmill. It helps diagnose conditions like coronary artery disease.
ECG vs. Echocardiogram:
An Echocardiogram uses sound waves (ultrasound) to create images of your heart's structure and function. While ECG focuses on electrical activity, an Echocardiogram provides detailed visual information about the heart's pumping and valve function.
ECG vs. Cardiac Catheterization:
Cardiac Catheterization involves threading a catheter into your heart to check blood flow and pressures. It's an invasive procedure used to diagnose and treat heart conditions, while an ECG is non-invasive.
ECG vs. Holter Monitor:
A Holter monitor records your heart's electrical activity over 24-48 hours, providing a continuous assessment. ECG, on the other hand, is a snapshot of your heart's activity at a specific moment.
ECG vs. MRI or CT Scan:
Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) scans offer detailed images of the heart and surrounding structures. They're more comprehensive than ECG and are often used for complex cases.
In summary, ECG primarily examines electrical activity, providing a quick snapshot of your heart's rhythm and detecting irregularities at rest. Other cardiac tests, like stress tests, echocardiograms, catheterization, Holter monitors, and imaging scans, offer more in-depth insights into heart structure, function, and blood flow, making them suitable for various diagnostic purposes. Your doctor will choose the most appropriate test based on your specific symptoms and medical history.
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