Heart after heart attack. Coloured Gamma Scan of a human heart (seen in transverse section) which has suffered myocardial infarction or heart attack. During a heart attack,heart muscle is starved of oxygen and necrosis (tissue death) occurs in places. Red/green areas show healthy active myocardial tissue which in a normal heart is continuous in a semi-circle around the left ventricle. Due to myocardial infarction the normal areas are separated,with scar tissue occurring in the dark blue region. Gamma scanning (scinti- graphy) involves introducing a radioactive tracer into the blood,which is taken up by the heart and detected by a gamma camera | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CNRI |
Bildgröße: | 4975 px × 3426 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |