Results 281 to 290 of about 34,245 (334)

How Much Daily Image-guided Volumetric Modulated Arc Therapy Is Useful for Proctitis Prevention With Respect to Static Intensity Modulated Radiotherapy Supported by Topical Medications Among Localized Prostate Cancer Patients?

Anticancer Research, 2021
Background/Aim: To evaluate if topical support therapy during static-intensity modulated radiotherapy (sIMRT) course is able to equal the characteristic minimum risk for radiation proctitis of Image-guided volumetric modulated arc therapy (IG-VMAT ...
G. Ferini, A. Tripoli, Laura Molino, A. Cacciola, S. Lillo, S. Parisi, V. Umina, S. Illari, V. Marchese, Irene Rita Cravagno, G. Borzì, V. Valenti   +11 more
semanticscholar   +1 more source

Commissioning of Volumetric Modulated Arc Therapy (VMAT)

International Journal of Radiation Oncology*Biology*Physics, 2009
Volumetric modulated arc therapy (VMAT) involves the simultaneous use of dynamic multileaf collimator (DMLC) techniques and gantry arcing; appropriate quality assurance is therefore required. This article describes the development and implementation of procedures for commissioning VMAT on a commercial linear accelerator (Elekta PreciseBeam VMAT with ...
James L, Bedford, Alan P, Warrington
openaire   +2 more sources

Intensity-modulated radiotherapy, coplanar volumetric-modulated arc, therapy, and noncoplanar volumetric-modulated arc therapy in, glioblastoma: A dosimetric comparison

Clinical Neurology and Neurosurgery, 2019
Advanced techniques such as volumetric-modulated arc therapy (VMAT) may reduce radiation damage and improve the quality of life for patients.We performed a study comparing dose distributions to the planning target volumes(PTVs) and other organs at risk (OARs) of intensity-modulated radiotherapy (IMRT),coplanar VMAT (coVMAT), and non-coplanar VMAT ...
Yong Hou, Yan Zhang, Zhen Liu, Lili Yv, Kun Liu, Xiufang Tian, Yajuan Lv   +6 more
openaire   +2 more sources

Radiation Pneumonitis After Volumetric Modulated Arc Therapy for Non-small Cell Lung Cancer

Anticancer Research, 2021
Background/Aim: To evaluate the incidence and grade of radiation pneumonitis after volumetric modulated arc therapy (VMAT) performed for the treatment of non-small cell cancer (NSCLC).
Masayuki Fujiwara, H. Doi, M. Igeta, Hitomi Suzuki, K. Kitajima, M. Tanooka, Toshihisa Ishida, Tsukasa Wakayama, T. Yokoi, K. Kuribayashi, T. Kijima, M. Hashimoto, N. Kondo, S. Matsumoto, S. Hasegawa, N. Kamikonya, K. Yamakado   +16 more
semanticscholar   +1 more source

MO-A-211-01: Volumetric Modulated Arc Therapy

Medical Physics, 2012
Volumetric Modulated Arc Therapy (VMAT) is a rotational approach to the delivery of intensity modulated radiation therapy (IMRT) that can be delivered on a conventional linear accelerator. VMAT combines the dosimetric advantages of rotational delivery with the dose painting capabilities of IMRT.
D, Shepard, R, Popple
openaire   +2 more sources

Couch modelling for volumetric modulated arc therapy (VMAT)

Australasian Physical & Engineering Sciences in Medicine, 2017
The aim of this work was to investigate the impact of the accuracy of a certain couch model on the overall accuracy of the dose calculation. For this purpose two models of the Varian Exact Couch (Varian Medical Systems, Palo Alto, CA, USA) for use in the planning of volumetric modulated arc therapy (VMAT) were created in Monaco 5.1 (Elekta, Stockholm ...
Te-yu Chyou, Friedlieb Lorenz
openaire   +2 more sources

Simultaneous trajectory generation and volumetric modulated arc therapy optimization

Medical Physics, 2020
PurposeTrajectory‐based treatment planning involves the combination of a gantry‐couch trajectory with volumetric modulated arc therapy (VMAT) treatment plan optimization. This work presents the implementation of an optimization methodology that generates a trajectory simultaneous with treatment plan optimization (simTr‐VMAT).MethodsThe optimization ...
Joel, Mullins, Marc-André, Renaud, Monica, Serban, Jan, Seuntjens   +3 more
openaire   +2 more sources

An comparison of acute toxicities and patient‐reported outcomes between intensity‐modulated proton therapy and volumetric‐modulated arc therapy after ipsilateral radiation for head and neck cancers

Head and Neck, 2021
Intensity‐modulated proton therapy (IMPT) demonstrates superior dose distribution over volumetric‐modulated arc therapy (VMAT) for sparing organs‐at‐risk (OARs) in ipsilateral radiotherapy.
E. Jeans, S. Shiraishi, G. Manzar, L. Morris, A. Amundson, L. Mcgee, J. Rwigema, M. Neben-Wittich, D. Routman, D. Ma, Samir H. Patel, R. Foote, S. Lester   +12 more
semanticscholar   +1 more source

Dosimetric comparison of hybrid volumetric-modulated arc therapy, volumetric-modulated arc therapy, and intensity-modulated radiation therapy for left-sided early breast cancer

Medical Dosimetry, 2015
To compare the dosimetric performance of 3 different treatment techniques: hybrid volumetric-modulated arc therapy (hybrid-VMAT), pure-VMAT, and fixed-field intensity-modulated radiation therapy (F-IMRT) for whole-breast irradiation of left-sided early breast cancer.
Jia-Fu, Lin, Dah-Cherng, Yeh, Hui-Ling, Yeh, Chen-Fa, Chang, Jin-Ching, Lin   +4 more
openaire   +2 more sources

Treatment planning for volumetric modulated arc therapy

Medical Physics, 2009
Purpose: Volumetric modulated arc therapy (VMAT) is a specific type of intensity‐modulated radiation therapy (IMRT) in which the gantry speed, multileaf collimator (MLC) leaf position, and dose rate vary continuously during delivery. A treatment planning system for VMAT is presented.Methods: Arc control points are created uniformly throughout one or ...
openaire   +2 more sources