5.一般高分次放射治療(hyperfractionation radiotherapy)的劑量約是:
(A)0.2~0.5 Gy/fraction, twice a day
(B)0.5~0.7 Gy/fraction, twice a day
(C)0.8~0.9 Gy/fraction, twice a day
(D)1.2~1.3 Gy/fraction, twice a day
21 在插種近接治療(interstitial brachytherapy)技術中,那一個劑量系統的特色是有均勻的射源分布但不均
勻的劑量分布?
(A) Paterson-Parker system (B) Quimby system
(C) Memorial system (D) Paris system