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Origin’s of PSQA
Burman et al. (1997) one of the 1
st
to recommend PSQA
A number of guidelines subsequently recommended PSQA
measurement (AAPM 2003)
Ibbott et al. (2009) reported on results of an RPC dosimetry audit
that greater variation in dosimetric accuracy between centres for
IMRT compared to 3DCRT
Early literature - IMRT plans possess a lot of segments and place
higher demands on MLC modelling and calibration
At the beginning – a consensus to measure