Results 11 to 20 of about 14,294 (186)
Life, 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
exaly +3 more sources
Frontiers in OncologyPurposeCreate a comprehensive automated solution for pediatric and adult VMAT-CSI including contouring, planning, and plan check to reduce planning time and improve plan quality.MethodsSeventy-seven previously treated CSI patients (age, 2-67 years) were used for creation of an auto-contouring model to segment 25 organs at risk (OARs).
Yuliia Lozko +2 more
exaly +4 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]
Iranian 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
Multicriteria VMAT optimization [PDF]
Medical 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 180 equi-spaced beams. This allows the planner to navigate the ideal dose distribution Pareto surface
Craft, David +5 more
openaire +4 more sources
Modern Radiotherapy for a Medieval Malady: An Analysis of Treatment Toxicities for Locally Advanced Head and Neck Cancers [PDF]
Middle 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
Modified VMAT Plans for Locally Advanced Centrally Located Non-Small Cell Lung Cancer (NSCLC)
Life, 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
Planning study of flattening filter free beams for volumetric modulated arc therapy in squamous cell carcinoma of the scalp. [PDF]
PLoS 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
Radiation 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
Technology in Cancer Research & Treatment, 2021 Purpose: A novel in-house technology “Non-Uniform VMAT (NU-VMAT)” was developed for automated cardiac dose reduction and treatment planning optimization in the left breast radiotherapy.
Jianjian Qiu PhD +3 more
doaj +1 more source
Dosimetric effects of sectional adjustments of collimator angles on volumetric modulated arc therapy for irregularly-shaped targets. [PDF]
PLoS ONE, 2017 To calculate an optimal collimator angle at each of sectional arcs in a full-arc volumetric modulated arc therapy (VMAT) plan and evaluate dosimetric quality of these VMAT plans comparing full-arc VMAT plans with a fixed collimator angle.Seventeen ...
Beom Seok Ahn +5 more
doaj +1 more source