Results 101 to 110 of about 154,094 (278)

Implementation of Aperture-Based Complexity Metrics of MLC Opening based on the IMRT Technique for Central Nervous System (CNS) and Breast cases [PDF]

open access: yesIranian Journal of Medical Physics
Introduction: Complexity metrics have been suggested to characterize treatment plans based on machine parameters such as multileaf collimator (MLC) position.
Meirisa Ambalinggi   +5 more
doaj   +1 more source

Viability of Non-Coplanar VMAT for Liver SBRT as Compared to Coplanar VMAT and Beam Orientation Optimized 4π IMRT. [PDF]

open access: yes, 2016
PurposeThe 4π static non-coplanar radiotherapy delivery technique has demonstrated better normal tissue sparing and dose conformity than the clinically used volumetric modulated arc therapy (VMAT).
Cao, Minsong   +7 more
core   +1 more source

The Changing Therapeutic Role of Chemo-radiotherapy for Loco-regionally Advanced Nasopharyngeal Carcinoma from Two/Three-Dimensional Radiotherapy to Intensity-Modulated Radiotherapy: A Network Meta-Analysis

open access: yesTheranostics, 2017
Purpose: We used randomized trials of radiotherapy (RT) with or without chemotherapy in non-metastatic nasopharyngeal carcinoma to investigate the survival benefit of chemoradiotherapy regimens between two/three-dimensional radiotherapy (2D/3D RT) and ...
R. You   +13 more
semanticscholar   +1 more source

Evaluation of Hybrid Arc and Volumetric-Modulated Arc Therapy Treatment Plans for Fractionated Stereotactic Intracranial Radiotherapy. [PDF]

open access: yes, 2018
PURPOSE: The study was aimed to compare hybrid arc and volumetric-modulated arc therapy treatment plans for fractionated stereotactic radiotherapy of brain tumors. METHODS: Treatment plans of 22 patients were studied.
Gunn, Vickie   +5 more
core   +1 more source

Fraction-variant beam orientation optimization for non-coplanar IMRT

open access: yes, 2017
Conventional beam orientation optimization (BOO) algorithms for IMRT assume that the same set of beam angles is used for all treatment fractions. In this paper we present a BOO formulation based on group sparsity that simultaneously optimizes non ...
Nguyen, Dan   +4 more
core   +1 more source

Intensity-modulated Radiotherapy for Pituitary Somatotroph Adenomas

open access: yesThe Journal of Clinical Endocrinology & Metabolism, 2020
Abstract Objective To summarize our experience in the treatment of pituitary somatotroph adenomas by fractionated intensity-modulated radiotherapy (IMRT), describe the treatment outcomes, and determine predictors. Methods and Materials
Xin Lian   +10 more
openaire   +3 more sources

DARS: a phase III randomised multicentre study of dysphagia- optimised intensity- modulated radiotherapy (Do-IMRT) versus standard intensity- modulated radiotherapy (S-IMRT) in head and neck cancer

open access: yesBMC Cancer, 2016
Persistent dysphagia following primary chemoradiation (CRT) for head and neck cancers can have a devastating impact on patients’ quality of life. Single arm studies have shown that the dosimetric sparing of critical swallowing structures such as the ...
I. Petkar   +16 more
semanticscholar   +1 more source

Breast-conserving radiotherapy with simultaneous integrated boost; field-in-field three-dimensional conformal radiotherapy versus inverse intensity-modulated radiotherapy – A dosimetric comparison: Do we need intensity-modulated radiotherapy?

open access: yesSouth Asian Journal of Cancer, 2018
Background and Purpose: To examine the feasibility of improving breast-conserving radiotherapy with simultaneous integrated boost (SIB) and analyzing the efficiency of forward versus inverse intensity-modulated radiotherapy (IMRT) techniques in providing
Bindhu Joseph   +6 more
doaj   +1 more source

Baseline T cell dysfunction by single cell network profiling in metastatic breast cancer patients. [PDF]

open access: yes, 2019
BackgroundWe previously reported the results of a multicentric prospective randomized trial of chemo-refractory metastatic breast cancer patients testing the efficacy of two doses of TGFβ blockade during radiotherapy.
Demaria, Sandra   +10 more
core   +1 more source

A GPU-based multi-criteria optimization algorithm for HDR brachytherapy

open access: yes, 2019
Currently in HDR brachytherapy planning, a manual fine-tuning of an objective function is necessary to obtain case-specific valid plans. This study intends to facilitate this process by proposing a patient-specific inverse planning algorithm for HDR ...
Beaulieu, Luc   +5 more
core   +2 more sources

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