Results 1 to 10 of about 29,650 (200)

Multicriteria VMAT optimization [PDF]

open access: yesMedical physics, 2011
Purpose: To make the planning of volumetric modulated arc therapy (VMAT) faster and to explore the tradeoffs between planning objectives and delivery efficiency. Methods: A convex multicriteria dose optimization problem is solved for an angular grid of
Bedford   +37 more
core   +4 more sources

HyperArc VMAT planning for single and multiple brain metastases stereotactic radiosurgery: a new treatment planning approach

open access: yesRadiation Oncology, 2018
Purpose The HyperArc VMAT (HA-VMAT) planning approach was newly developed to fulfill the demands of dose delivery for brain metastases stereotactic radiosurgery.
Shingo Ohira   +2 more
exaly   +3 more sources

Optimal partial-arcs in VMAT treatment planning [PDF]

open access: yesPhysics in Medicine and Biology, 2012
Purpose: To improve the delivery efficiency of VMAT by extending the recently published VMAT treatment planning algorithm vmerge to automatically generate optimal partial-arc plans.
Bortfeld T   +11 more
core   +3 more sources

Dosimetric Comparative Study between Single and Dual Isocenter Stereotactic Body Radiotherapy Plans in Treatment of Multiple Lesions Non-Small Cell Lung Cancer Patients [PDF]

open access: yesIranian Journal of Medical Physics, 2023
Introduction: stereotactic body radiotherapy (SBRT) is the most proper treatment for multi lesions non-small cell lung cancer (NSCLC) for enhanced good coverage and minimizing dose to organs at risk (OARs).
Mona Ibraheim   +5 more
doaj   +1 more source

Multi-Planar VMAT Plans for High-Grade Glioma and Glioblastoma Targeting the Hypothalamic-Pituitary Axis Sparing

open access: yesLife, 2022
Background: This study aimed to identify the better arc configuration of volumetric modulated arc therapy (VMAT) for high-grade glioma and glioblastoma, focusing on a dose reduction to the hypothalamic–pituitary axis through an analysis of dose ...
Eva Y. W. Cheung   +5 more
doaj   +1 more source

Modified VMAT Plans for Locally Advanced Centrally Located Non-Small Cell Lung Cancer (NSCLC)

open access: yesLife, 2021
Objectives: This study aimed to find the optimal radiotherapy VMAT plans, that achieved high conformity and homogeneity to the planned target volume (PTV), and minimize the dose to nearby organs at risk including the non-PTV lung, heart and oesophagus ...
Eva Y. W. Cheung   +9 more
doaj   +1 more source

Modern Radiotherapy for a Medieval Malady: An Analysis of Treatment Toxicities for Locally Advanced Head and Neck Cancers [PDF]

open access: yesMiddle East Journal of Cancer, 2021
Background: Concurrent chemo-radiation has proven to be beneficial in a majority of patients with locally advanced head and neck cancers. Despite modern techniques of radiation delivery, the trade-off is acute and entails late toxicities for a ...
Fathima Almas   +6 more
doaj   +1 more source

Impact of Multi-criteria Optimization on 6-MV Flattening Filter-Free Volumetric Modulated Arc Therapy for Craniospinal Irradiation [PDF]

open access: yesIranian Journal of Medical Physics, 2020
Introduction: Volumetric modulated arc therapy (VMAT) is an advanced technique used for radiotherapy treatment using different optimization modes. The present study aimed to evaluate Multi-criteria Optimization (MCO) influence on VMAT for Craniospinal ...
Mohandass P   +8 more
doaj   +1 more source

Planning study of flattening filter free beams for volumetric modulated arc therapy in squamous cell carcinoma of the scalp. [PDF]

open access: yesPLoS ONE, 2014
Flattening filter free (FFF) beams show the potential for a higher dose rate and lower peripheral dose. We investigated the planning study of FFF beams with their role for volumetric modulated arc therapy (VMAT) in squamous cell carcinoma of the scalp ...
Youqun Lai   +4 more
doaj   +1 more source

Fully automated volumetric modulated arc therapy planning for locally advanced rectal cancer: feasibility and efficiency

open access: yesRadiation Oncology, 2023
Background Volumetric modulated arc therapy (VMAT) for locally advanced rectal cancer (LARC) has emerged as a promising technique, but the planning process can be time-consuming and dependent on planner expertise.
Kouta Hirotaki   +6 more
doaj   +1 more source

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