IMRT 2018

Transit dosimetry

• Transit-dose measurement with the electronic portal imaging device (EPID) • 2D: model to convert gray scale image to portal dose • 3D: Reconstruction of patient dose in 3D using CBCT • In-vivo dosimetry using only the equipment integrated on the linac, using the treatment field itself • Commercial solutions being developed • Generates a huge amount of data to be analysed • Do we know how to address discrepancies?

Nijsten MedPhys 2007

06/06/2018