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2D detectors [EPID]
Steciw
Med Phys (32) 2005
Renner
J Appl Clin Med Phys (6) 2005
van Elmpt
Med Phys (33) 2006
2 - Predict primary fluence from open images
❑
Measure
‘
open
’
EPID image (i.e. without
attenuating medium)
❑
Convert to dose at EPID level
❑
Deconvolve EPID dose with lateral scatter kernel
to estimate primary fluence
❑
Use primary fluence as input to calculate dose
distribution in patient/phantom
primary
fluence
dose
calculation
algorithm