title: On the equivalence of rotational and concentric therapy.
abstract: The aim of this work is to analyse the equivalence of two classes of radiation therapy. One class of therapy is characteristic of Gamma Knife type irradiations and is defined by pencil beam concentric irradiation converging on multiple centres throughout the patient's body. The other class of treatment is characteristic of accelerator based, beam intensity modulated type irradiation defined by a rotation of wide beams around a single centre. We focus our attention on deriving formulae that relate treatments in these two classes and characterize conditions under which they are valid.
authors.affiliation: Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis 46202, USA.
authors.forename: L
authors.initials: L
authors.lastname: Papiez
mesh_terms: D008962:Models, Theoretical; D011829:Radiation Dosage; D016634:Radiosurgery; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D013813:Therapy, Computer-Assisted