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2D detectors [EPID]
McNutt
Med Phys (23) 1996
Pasma
IJROBP (45) 1999
Van Esch
Radiother Oncol (60) 2001
D
EPID_meas
= D
EPID_calc
?
1 – Forward from transit images
❑
Measure transit EPID dose (D
EPID_meas
)
❑
Extend patient CT data to EPID level and
calculate TPS EPID dose (D
EPID_calc
)
❑
Compare measured with calculated EPID
dose