AROI-ESTRO GYN Teaching Course
Mid Line Block
Normalization • For corner shielding, normalization at the isocentre • For Midline block- at a reference point
TPS modelling – Accurate modeling in TPS – Central axis is blocked
Central axis blocked
100
80
60
Dose(%)
40
20
0
-17
-7
3
13
Distance(cm)
Measured_crline Measured_inline
TPS_crline TPS_inline
Swamidas et al, ACPSEM 2009
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