Dosimetry in translation total body irradiation technique: a computer treatment planning approach and an experimental study concerning lung sparing.

Purpose: To describe and evaluate a method that uses a 3-dimensional (3D) treatment planning system (TPS) to determine the relative dose to the lung, and to study the beam filtration required for lung sparing in translation total body irradiation (TBI). Special dosimetric problems related to moving couch were also considered.

Materials And Methods: The irradiation technique employed in our hospital is that of patient translation.