IMRT

VMAT SBRT an overview…

Technique

Effect

Comment

Minimum margin of 5mm necessary

PTV degraded up to 7%

VMAT/FFF

Li et al

<2%

VMAT

4DCT tracks. Larger eff

Riley et al

98.5% for large modulated plans met gamma 3%, 99.5% for low modulation

2-arc VMAT SBRT

not homogeneous

Ong et al

<1% for GTV

VMAT

mapping on 4DCT

Rao et al

Mostly OK, some outliers in single patients

VMAT

Simulation using CK-tracks

Zhao et al

<3%

DMLC

6 patients

Yang et al

GTV<3.8% average

VMAT

Ehrbar et al