The treatment of extensive scalp lesions using coplanar and non-coplanar photon IMRT: a single institution experience

The treatment of extensive scalp lesions using coplanar and non-coplanar photon IMRT: a single institution experience

BACKGROUND This clinical study compared four different cases of extensive scalp malignancies treated by intensity-modulated radiation therapy. The merits of coplanar and non-coplanar Step-and-shoot total scalp irradiation techniques were evaluated against the background of the literature. METHODS Four patients (angiosarcoma, n=2, cutaneous B-cell non-Hodgkin lymphoma, B-NHL, n=1, mycosis fung...

Non - Coplanar Magnetic Reconnection

Neighborhood search approaches to non-coplanar beam orientation optimization for total marrow irradiation using IMRT

We consider the beam orientation optimization (BOO) problem for total marrow irradiation (TMI) treatment planning using intensity modulated radiation therapy (IMRT). Currently, IMRT is not widely used in TMI treatment delivery; furthermore, the effect of using non-coplanar beam orientations is not known. We propose and implement several variations of a single neighborhood search algorithm that ...

Characteristics of non-coplanar IMRT in the presence of target-embedded organs at risk

BACKGROUND The aim is to analyze characteristics and to study the potentials of non-coplanar intensity modulated radiation therapy (IMRT) techniques. The planning study applies to generalized organ at risk (OAR) - planning target volume (PTV) geometries. METHODS The authors focus on OARs embedded in the PTV. The OAR shapes are spherically symmetric (A), cylindrical (B), and bended (C). Severa...

Beam Angle Optimization for Automated Coplanar IMRT Lung Plans

Beam Angle Optimization for Automated Coplanar IMRT Lung Plans by Kathryn Hedrick Medical Physics Graduate Program Duke University Date:_______________________ Approved: ___________________________ Q. Jackie Wu, Supervisor ___________________________ Jing Cai ___________________________ Anuj Kapadia An abstract of a thesis submitted in partial fulfillment of the requirements for the degree of M...