Ultrasound scans showing the ejection fraction (EF) of the heart of a female patient. EF is a measure of how much of the blood in the heart's left lower chamber (ventricle) leaves it each time the heart contracts. An ejection fraction between 50 and 70 per cent is considered normal. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / RAJAAISYA |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |