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EPID in vivo dosimetry-commercial solutions
Product Name
How they work
Dosimetry Check
(Math Resolutions)
From EP images they calculate the fluence at a
plane before the patient.
This fluence is used instead that calculated by a
beam model to calculate the dose to patient
(dose engine)
EpiGrayTM
(DosiSoft) (IBA)
The EP image is converted to EP dose
(deconvolution by scatter from the portal and
patient), This “primary dose” is backprojected
into the patient (attenuation) and convolved with
a scatter kernel.
iViewDose
(Elekta)
The EP image is converted to EP dose
(deconvolution by scatter from the portal and
patient), This “primary dose” is backprojected
into the patient (attenuation) and convolved with
a scatter kernel.
PerFraction
(Sun Nuclear)
3D dose reconstruction
: Beam model +syntetic
MLC logfiles (from EP images)+ CBCT
2D transmission dose comparison
: Predicted
transmission dose (beam model+ dose
calculation algorithm) compared with the
transmission dose measured by the EPID.