PPT 슬라이드

Cumulated activity(A) :

• area under the curve when activity is plotted as a function of time

• A = 1.443* A0* te

(A0: initial activity, te : effective half-life)

Dose to the blood in rad(Db) :

• Db = 10,000*Ab + 8.16*Aw/M

(Ab: cumulated activity in blood, Aw: cumulated activity in whole body, M: patient’s body mass)

Dose to a lesion site(Dl) :

• Dl = 9800*Al*(1 + 2f)/m

(Al: cumulated activity in the lesion in mCi-d, f: absorbed fraction for penetrating radiation, m: the mass of the lesion in g)

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