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Heart disease

Heart disease

M172/0416

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Credit

DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY

Caption

Heart disease. Distorted electrocardiogram (ECG) traces, representing the irregular heartbeat of a diseased heart in atrial fibrillation. This disorder produces a chaotic, rapid heartbeat. An ECG measures the pumping of the heart's chambers using 12 electrodes placed on the exterior of the body. The heartbeat is recorded as a series of electrical waves (red), one from each electrode. If parts of the heart are functioning abnormally, the ECG reveals which areas are affected and the nature of the condition.

Release details

Model release not required. Property release not required.

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