Results 41 to 50 of about 12,932 (162)

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

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

Intensity modulated radiation therapy versus volumetric intensity modulated arc therapy [PDF]

Journal of Medical Radiation Sciences, 2013
The advanced developments in external beam radiation therapy (EBRT) over the past few decades have improved dose conformity to the target while minimizing dose to the surrounding organs at risk (OAR). Intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) are two commonly used EBRT techniques to treat cancer.
openaire   +2 more sources

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

Dose verification for respiratory-gated volumetric modulated arc therapy [PDF]

Physics in Medicine and Biology, 2011
A novel commercial medical linac system (TrueBeam™, Varian Medical Systems, Palo Alto, CA) allows respiratory-gated volumetric modulated arc therapy (VMAT), a new modality for treating moving tumors with high precision and improved accuracy by allowing for regular motion associated with a patient's breathing during VMAT delivery.
Jianguo, Qian, Lei, Xing, Wu, Liu, Gary, Luxton   +3 more
openaire   +2 more sources

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

Automatic interactive optimization for volumetric modulated arc therapy planning [PDF]

Radiation Oncology, 2015
Intensity modulated radiotherapy treatment planning for sites with many different organs-at-risk (OAR) is complex and labor-intensive, making it hard to obtain consistent plan quality. With the aim of addressing this, we developed a program (automatic interactive optimizer, AIO) designed to automate the manual interactive process for the Eclipse ...
Tol, J.P., Dahele, M.R., Peltola, J., Nord, J., Slotman, B.J., Verbakel, W.F.A.R.   +5 more
openaire   +3 more sources

Noninvasive treatment of two deeply invasive cutaneous squamous cell carcinomas of the midface located close to the orbits with intensity‐modulated arc therapy: A case report

Clinical Case Reports, 2022
Definitive radiotherapy is a curative and noninvasive treatment modality for cutaneous squamous cell carcinomas of the midface when surgery has an impact on function and cosmetics.
Isabella Gruber, Karin Weidner, Oliver Koelbl   +2 more
doaj   +1 more source

Edge area metric complexity scoring of volumetric modulated arc therapy plans

Physics and Imaging in Radiation Oncology, 2021
Background and purpose: Aperture-based complexity metrics have been suggested as a method to score complexity of volumetric modulated arc therapy (VMAT) plans.
Julia Götstedt, Anna Bäck
doaj   +1 more source