Modulation of the beam intensity with wax filter compensators

Abstract

In order to achieve homogenous dose distribution in target volume several approaches are possible. We are discussing the possibility of field intensity modulation with wax filter compensators and comparing the technique with other techniques. The case report of the head and neck region radiotherapy with the use of 2D wax filter compensator is presented. The 3D wax filter compensators technique is further discussed as a substitute to the step and shoot IMRT or to the sliding window IMRT technique. The advantages and disadvantages of the wax filter compensators are put side by side. The case of meduloblastoma treatment is outlined as the case where whit applying 3D wax filter compensators the benefit would be the greatest.