Abstract
Cutting Field IMRT (CFIMRT) is a radiation technology which was developed for distributing the dose of IMRT in combination with an already established radiation method. Because a microscopic irradiation field such as IMRT is not used, its reproducibility and scope of usage are considerably enhanced, facilitating optimal therapeutic planning with the aid of templates so far proposed in various fields. Furthermore, CFIMRT has the merit of flexibility, thus absorbing the potential difference in instruments used in various institutions, and so can be used even in a facility with no MLC. In particular, its clinical application to the head and neck region where the target capacity and critical organs are anatomically close and in complicated juxtaposition with each other is highly expected in many institutions.
