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INTENSITY MODULATED RADIATION

THERAPY

VMAT (Volumetric Modulated Arc Therapy*)

on LINAC

During RT :

Speed and angles of rotation arm change

Dose rate varies

Leafs in motion

TOMOTHERAP

Y

(2002)

IMRT with fixed beams

on LINAC

Linac arm is motionless

Leafs are moving during the RT

Dose rate is constant

Delivery of RT is coupled to a

continue table motion