Heart after heart attack. Gamma scanning used to assess a 74-year-old man's heart following a heart attack (myocardial infarction). 12 coloured gamma scans (upper left) show blood uptake by the heart muscle,ranging from adequate (red) to inadequate (blue). A graph (upper right) shows the ejection fraction (EF) of the heart (the amount of blood it is pumping) to be an adequate 55%. The four models along bottom (based on gamma scanning) show four different parameters of heart function. Ischaemia (reduced blood flow) has been diagnosed for some areas of this heart. Radioactive tracers were used to label the blood and track its uptake by heart muscle by detecting its emissions of gamma rays | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Zephyr |
Bildgröße: | 4724 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |