Results 31 to 40 of about 74,804 (273)

The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle radiotherapy [PDF]

open access: yes, 2007
A new variant of the pencil-beam (PB) algorithm for dose distribution calculation for radiotherapy with protons and heavier ions, the grid-dose spreading (GDS) algorithm, is proposed.
Ahnesjö   +29 more
core   +3 more sources

External beam accelerated partial breast irradiation: dosimetric assessment of conformal and three different intensity modulated techniques

open access: yesRadiology and Oncology, 2019
The aim of the study was to evaluate and compare four different external beam radiotherapy techniques of accelerated partial breast irradiation (APBI) considering target coverage, dose to organs at risk and overall plan quality.
Stelczer Gábor   +4 more
doaj   +1 more source

Monitor units are not predictive of neutron dose for high-energy IMRT

open access: yesRadiation Oncology, 2012
Background Due to the substantial increase in beam-on time of high energy intensity-modulated radiotherapy (>10 MV) techniques to deliver the same target dose compared to conventional treatment techniques, an increased dose of scatter radiation ...
Hälg Roger A   +4 more
doaj   +1 more source

Commissioning and Evaluation of an Electronic Portal Imaging Device-Based In-Vivo Dosimetry Software. [PDF]

open access: yes, 2018
This study reports on our experience with the in-vivo dose verification software, EPIgray® (DOSIsoft, Cachan, France). After the initial commissioning process, clinical experiments on phantom treatments were evaluated to assess the level of accuracy of ...
Cheung, Joey   +4 more
core   +2 more sources

Development and operation of a pixel segmented liquid-filled linear array for radiotherapy quality assurance

open access: yes, 2004
A liquid isooctane (C$_{8}$H$_{18}$) filled ionization linear array for radiotherapy quality assurance has been designed, built and tested. The detector consists of 128 pixels, each of them with an area of 1.7 mm $\times$ 1.7 mm and a gap of 0.5 mm.
A Iglesias   +20 more
core   +1 more source

A systematic review of methods to immobilise breast tissue during adjuvant breast irradiation [PDF]

open access: yes, 2013
Greater use of 3D conformal, Intensity Modulated Radiotherapy (IMRT) and external beam partial breast irradiation following local excision (LE) for breast cancer has necessitated a review of the effectiveness of immobilisation methods to stabilise breast
Barrett-Lennard   +48 more
core   +1 more source

Whole breast and regional nodal irradiation in prone versus supine position in left sided breast cancer [PDF]

open access: yes, 2017
Background: Prone whole breast irradiation (WBI) leads to reduced heart and lung doses in breast cancer patients receiving adjuvant radiotherapy. In this feasibility trial, we investigated the prone position for whole breast + lymph node irradiation (WB +
A Berrington de Gonzalez   +56 more
core   +2 more sources

Intensity modulated radiotherapy (IMRT) in bilateral retinoblastoma

open access: yesRadiology and Oncology, 2010
External beam radiotherapy (EBRT) for retinoblastoma has traditionally been done with conventional radiotherapy techniques which resulted high doses to the surrounding normal tissues.A 20 month-old girl with group D bilateral retinoblastoma underwent intensity modulated radiotherapy (IMRT) to both eyes after failing chemoreduction and focal therapies ...
Atalar, Banu   +3 more
openaire   +4 more sources

Intensity modulated radiotherapy for elderly bladder cancer patients

open access: yesRadiation Oncology, 2011
Background To review our experience and evaluate treatment planning using intensity-modulated radiotherapy (IMRT) and helical tomotherapy (HT) for the treatment of elderly patients with bladder cancer. Methods From November 2006 through November 2009, we
Chong Ngot-Swan   +11 more
doaj   +1 more source

Current advances in radiotherapy for soft tissue sarcomas

open access: yesNowotwory, 2020
Radiotherapy (RT) is a part of the routine treatment of locally advanced or high-grade soft-tissue sarcomas (STS). However, RT has changed significantly over the last 20 years. Modern RT techniques have extended its potential application in STS treatment.
Mateusz J. Spałek, Aneta M. Borkowska
doaj   +1 more source

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