Healthy heart muscle. Coloured multi-dimensional perfusion scintigram showing blood flow through the muscle of a healthy human heart. The heart is seen from several angles, such as a superior view (from top) and inferior view (from below). The red colour here shows areas of good blood flow around the heart. The white areas show the hollow chambers, whilst the blue/green areas are associated with low blood flow. This image was made by myocardial perfusion scintigraphy. The patient is injected with a radioactive tracer and an image of the heart taken with a gamma camera which detects gamma rays in the blood flow.
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