This image is not available for purchase in your country.

Heart disease

Heart disease

M172/0442

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

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

Caption

Heart disease. Electrocardiogram (ECG) showing the heartbeat during atrial fibrillation in an 80- year-old man. An ECG records the pumping of the heart's chambers, tracing electrical waves (brown) that are the output from 12 external electrodes (I-III, V1-V6 and aVR, aVL and aVF). In atrial fibrillation, the heart muscle fibres of the atria (two of the heart chambers) fail to contract in a co-ordinated way, leading to a rapid, irregular beat. This case may have been caused by myocardial ischaemia, inadequate blood flow to the heart muscle due to blocked blood vessels. Abnormalities in this ECG include changes (e.g. trough in trace V4) in the T wave after the main heartbeat peak.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}