Coloured Gamma Scan of heart after heart attack

Coloured Gamma Scan of heart after heart attack

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Credit: CNRI/SCIENCE PHOTO LIBRARY

Caption: 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.

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Keywords: cardiac, cardiac infarct, cardiac muscle, condition, disease, disorder, gamma, gamma scan, healthcare, heart, heart attack, infarct, infarction, medical, medicine, muscle, myocardial, myocardial infarction, scintigram

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