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DATORTOMOGRAFI

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Stråldosbegrepp för<br />

datortomografi (4)<br />

CTDIw = viktat CTDI100 , ett medelvärde på<br />

stråldosen i den bestrålade sektionen<br />

= 1/3 x CTDIc + 2/3 x CTDIp Anges ofta i datablad som mGy/100 mAs<br />

Typiska värden:<br />

– Bål 6-10 mGy/100 mAs<br />

– Skalle 12-15 mGy/100 mAs

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