MODEL RELEASED. Heart ultrasound scan. Elderly male patient undergoing an ultrasound scan of the heart (echocardiography). The scanner (centre) is linked to a hand-held probe which is held against the patient's skin. The probe contains a crystal that is made to vibrate and emit a high frequency sound pulse. The probe also acts as a receiver,detecting the echo of each pulse as it is reflected from the body's internal structures,in this case the heart. An image "slice" through the organ is thus created,and viewed on a screen (upper frame). Heart defects such as congenital heart disease and disorders of the heart valves can be detected in this way | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CC Studio |
Bildgröße: | 2919 px × 2926 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |