Fraction-variant beam orientation optimization for non-coplanar IMRT

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

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 ...

متن کامل

Fast non-coplanar beam orientation optimization based on group sparsity

Objective: The selection of beam orientations, which is a key step in radiation treatment planning, is particularly challenging for non-coplanar radiotherapy systems due to the large number of candidate beams. In this paper, we report progress on the group sparsity approach to beam orientation optimization, wherein beam angles are selected by solving a large scale fluence map optimization probl...

متن کامل

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...

متن کامل

TU-G-BRB-01: Continuous Path Optimization for Non-Coplanar Variant SAD IMRT Delivery Using C-Arm Machines.

PURPOSE To develop and investigate a continuous path optimization methodology to traverse prescribed non-coplanar IMRT beams with variant SADs, by orchestrating the couch and gantry movement with zero-collision, minimal patient motion consequence and machine travel time. METHODS We convert the given collision zone definition and the prescribed beam location/angles to a tumor-centric coordinat...

متن کامل

Viability of Noncoplanar VMAT for liver SBRT compared with coplanar VMAT and beam orientation optimized 4π IMRT

PURPOSE The 4π static non-coplanar radiotherapy delivery technique has demonstrated better normal tissue sparing and dose conformity than the clinically used volumetric modulated arc therapy (VMAT). It is unclear whether this is a fundamental limitation of VMAT delivery or the coplanar nature of its typical clinical plans. The dosimetry and the limits of normal tissue toxicity constrained dose ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physics in Medicine & Biology

سال: 2018

ISSN: 1361-6560

DOI: 10.1088/1361-6560/aaa94f