50.3 MB (1.4 MB compressed)
4949 x 3555 pixels
41.9 x 30.0 cm ⏐ 16.5 x 11.8 in (300dpi)
DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Editorial use only.
Transoesophageal Doppler ultrasound. Anaesthetist taking readings from a transoesophageal Doppler ultrasound screen. This non-invasive technique is being used to monitor cardiac output during surgery. A drop in cardiac output can lead to a fatal drop in blood pressure and prevent sufficient oxygen delivery around the body.
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