Verellen et al.
“High number of beam angles with moderate modulation seems to be more
efficient in terms of delivery time on the current generation of treatment units”
Level of
modulation
Number of
angles
3D-CRT
Dynamic
Arc
IMRT
Helical
Tomotherapy
Cone-beam
Rotational
IMRT
Delivery efficiency
Degrees of freedom
Tomotherapy
Axial slice
Verellen et al.
Treatment times : the trade-off