Rotation Effects on the Target-Volume Margin Determination

Qinghui Zhang; Weijun Xiong; M. Chan; Y. Song; C. Burman

doi:10.1016/j.ejmp.2014.10.076

paper

Rotation Effects on the Target-Volume Margin Determination

arXiv:1411.4326 · doi:10.1016/j.ejmp.2014.10.076

Abstract

Rotational setup errors are usually neglected in most clinical centers. An analytical formula is developed to determine the extra margin between clinical target volume (CTV) and planning target volume (PTV) to account for setup errors. The proposed formula corrects for both translational and rotational setup errors and then incorporated into margin determination for PTV.