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Quatified myocardial tracer uptake as shown above is often compared with normal data base, and areas with lower than normal uptake are identified and indicated using color-coding. Normal databases for men and women are used.
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The extent of the abnormality expressed as % of the total myocardium.
The severity of the abnormality (how low is the tracer uptake with the abnormality) is usually expressed
as the sum of SD below the lower limit of normal.
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