Results 31 to 40 of about 11,712 (165)

Optimal planning strategy among various arc arrangements for prostate stereotactic body radiotherapy with volumetric modulated arc therapy technique

Radiology and Oncology, 2017
The aim of this study was to determine the optimal strategy among various arc arrangements in prostate plans of stereotactic body radiotherapy with volumetric modulated arc therapy (SBRT-VMAT).
Kang Sang Won, Chung Jin Beom, Kim Jae Sung, Kim In Ah, Eom Keun Yong, Song Changhoon, Lee Jeong Woo, Kim Jin Young, Suh Tae Suk   +8 more
doaj   +1 more source

Volumetric modulated arc therapy based total body irradiation: Workflow and clinical experience with an indexed rotational immobilization system

Physics and Imaging in Radiation Oncology, 2017
An indexed rotational immobilization system was developed for supine total body irradiation (TBI). Treatment plans had multi-isocentric volumetric modulated arc therapy (VMAT) beams to the upper body and parallel-opposed fields to the lower body, with a ...
Luo Ouyang, Michael Folkerts, You Zhang, Brian Hrycushko, Richard Lamphier, Pam Lee, Eric Chambers, Ezequiel Ramirez, Robert Reynolds, Yulong Yan, Steve B. Jiang, Robert Timmerman, Neil Desai, Ramzi Abdulrahman, Xuejun Gu   +14 more
doaj   +1 more source

A dosimetric comparison of volumetric modulated arc therapy with three-dimensional conformal radiotherapy in the treatment of cervical cancer

South African Journal of Oncology, 2021
Background: External beam radiotherapy (EBRT) is essential in the management of locally advanced cervical cancer (LACC). Volumetric modulated arc therapy (VMAT) is thought to achieve higher conformity to the planned target volume (PTV) and better sparing
Visham Bhagaloo, Nazreen Bhim, Alistair Hunter, Nazia Fakie   +3 more
doaj   +1 more source

Ultrafast treatment plan optimization for volumetric modulated arc therapy (VMAT) [PDF]

Medical Physics, 2010
Purpose:To develop a novel aperture‐based algorithm for volumetric modulated arc therapy (VMAT) treatment plan optimization with high quality and high efficiency.Methods:The VMAT optimization problem is formulated as a large‐scale convex programming problem solved by a column generation approach.
Men, Chunhua, Romeijn, H. Edwin, Jia, Xun, Jiang, Steve B.   +3 more
openaire   +4 more sources

Stereotactic Body Radiotherapy for Lung Lesions using Multiple Phase 3D-CT Based on the Analysis of Radiobiological Parameters [PDF]

Iranian Journal of Medical Physics, 2019
Introduction: Planning target volume (PTV) is generated from internal treatment volume (ITV) using four-dimensional computed tomography (4D-CT) for enhanced therapeutic gain in the stereotactic body radiotherapy for lung lesions (SBRT-Lung).
Arun Chairmadurai, Harish Goel, Sandeep Jain, Pawan Kumar   +3 more
doaj   +1 more source

A dosimetric comparison of 3D conformal vs intensity modulated vs volumetric arc radiation therapy for muscle invasive bladder cancer

Radiation Oncology, 2012
Background To compare 3 Dimensional Conformal radiotherapy (3D-CRT) with Intensity Modulated Radiotherapy (IMRT) with Volumetric-Modulated Arc Therapy (VMAT) for bladder cancer.
Foroudi Farshad, Wilson Lesley, Bressel Mathias, Haworth Annette, Hornby Colin, Pham Daniel, Cramb Jim, Gill Suki, Tai Keen, Kron Tomas   +9 more
doaj   +1 more source

Performance evaluation of gated volumetric modulated arc therapy [PDF]

Internatuinal Journal of Radiation Research, 2016
Background : Aim of this study is to evaluate the accuracy of the gated volumetric modulated arc therapy (VMAT/RapidArc) using 2D planar dosimetry, DynaLog files and COMPASS 3D dosimetry system. Materials and Methods : Pre-treatment quality assurance of 10 gated VMAT plans was verified using 2D array and COMPASS 3D dosimetry system.
S. Thirumalai Swamy, C. Anu Radha, G. Arun, M. Kathirvel, V. Subramanian   +4 more
openaire   +1 more source

Evaluation of dosimetric effect caused by slowing with multi-leaf collimator (MLC) leaves for volumetric modulated arc therapy (VMAT)

Radiology and Oncology, 2016
This study is to report 1) the sensitivity of intensity modulated radiation therapy (IMRT) QA method for clinical volumetric modulated arc therapy (VMAT) plans with multi-leaf collimator (MLC) leaf errors that will not trigger MLC interlock during beam ...
Xu Zhengzheng, Wang Iris Z., Kumaraswamy Lalith K., Podgorsak Matthew B.   +3 more
doaj   +1 more source

Evaluation of hippocampus-sparing VMAT versus conventional VMAT in locally advanced nasopharyngeal carcinoma: a dosimetric and biological analysis

Frontiers in Oncology
Background and purposeRadiation-induced hippocampal damage poses a risk of cognitive decline following radiotherapy. Existing international guidelines for nasopharyngeal carcinoma (NPC) radiotherapy provide insufficient specific guidance on hippocampus ...
Zhi Wei Liu, Zhang Rui Liang, Wei Wei Wu, Lei Tan, Song Huan Lin   +4 more
doaj   +1 more source

Tangent-based volumetric modulated arc therapy for advanced left breast cancer

Radiation Oncology, 2018
Purpose To introduce the benefits of tangent-based volumetric modulated arc therapy (TVMAT), an innovative radiotherapy planning technique, compared with traditional volumetric modulated arc therapy (VMAT) for advanced left breast cancer needing nodal ...
Pei-Chieh Yu, Ching-Jung Wu, Hsin-Hua Nien, Louis Tak Lui, Suzun Shaw, Yu-Lun Tsai   +5 more
doaj   +1 more source