Results 1 to 10 of about 75,672 (296)

Forward-planned intensity modulated radiation therapy using a cobalt source: A dosimetric study in breast cancer

Journal of Medical Physics, 2013
This analysis evaluates the feasibility and dosimetric results of a simplified intensity-modulated radiotherapy (IMRT) treatment using a cobalt-therapy unit for post-operative breast cancer. Fourteen patients were included.
Savino Cilla, Joseph Kigula-Mugambe, Cinzia Digesù, Gabriella Macchia, Solomon Bogale, Mariangela Massaccesi, David Dawotola, Francesco Deodato, Milly Buwenge, Luciana Caravatta, Angelo Piermattei, Vincenzo Valentini, Alessio G Morganti   +12 more
doaj   +1 more source

Dosimetric characteristics of a new linear accelerator under gated operation. [PDF]

, 2006
Respiratory gated radiotherapy may allow reduction of the treatment margins, thus sparing healthy tissue and/or allowing dose escalation to the tumor. However, current commissioning and quality assurance of linear accelerators do not include evaluation ...
Kriminski, Sergey, Li, Alex N, Solberg, Timothy D   +2 more
core   +1 more source

Multi-GPU implementation of a VMAT treatment plan optimization algorithm

, 2015
VMAT optimization is a computationally challenging problem due to its large data size, high degrees of freedom, and many hardware constraints. High-performance graphics processing units have been used to speed up the computations.
Folkerts, Michael, Jia, Xun, Jiang, Steve B., Peng, Fei, Tan, Jun, Tian, Zhen   +5 more
core   +1 more source

Comparison of simple and complex liver intensity modulated radiotherapy

Radiation Oncology, 2010
Background Intensity-modulated radiotherapy (IMRT) may allow improvement in plan quality for treatment of liver cancer, however increasing radiation modulation complexity can lead to increased uncertainties and requirements for quality assurance.
Eccles Cynthia L, Purdie Thomas G, Lee Mark T, Sharpe Michael B, Dawson Laura A   +4 more
doaj   +1 more source

A dose homogeneity and conformity evaluation between ViewRay and pinnacle-based linear accelerator IMRT treatment plans

Journal of Medical Physics, 2014
ViewRay, a novel technology providing soft-tissue imaging during radiotherapy is investigated for treatment planning capabilities assessing treatment plan dose homogeneity and conformity compared with linear accelerator plans.
Daniel L Saenz, Bhudatt R Paliwal, John E Bayouth   +2 more
doaj   +1 more source

An audit of setup reproducibility in radiotherapy of head and neck cancers

Journal of Radiation and Cancer Research, 2016
Background: The use of a customized immobilization thermoplastic mask is essential to compute clinical target volume (CTV) to planning target volume (PTV) margins.
Mranalini Verma, Abdul Aziz Sait, S K Senthil Kumar, K J Maria Das, Punita Lal, Shaleen Kumar   +5 more
doaj   +1 more source

CBCT-to-CT synthesis with a single neural network for head-and-neck, lung and breast cancer adaptive radiotherapy

, 2019
Purpose: CBCT-based adaptive radiotherapy requires daily images for accurate dose calculations. This study investigates the feasibility of applying a single convolutional network to facilitate CBCT-to-CT synthesis for head-and-neck, lung, and breast ...
Berg, Cornelis AT van den, Houweling, Anette C, Kotte, Alexis NTJ, Maspero, Matteo, Savenije, Mark HF, van Heijst, Tristan CF, Verhoeff, Joost JC   +6 more
core   +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?

South 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, Nisma Farooq, Sabari Kumar, C R Vijay, Kurian J Puthur, C Ramesh, Vishwanath Lokesh   +6 more
doaj   +1 more source

Performance Comparison of Knowledge-Based Dose Prediction Techniques Based on Limited Patient Data. [PDF]

, 2018
PurposeThe accuracy of dose prediction is essential for knowledge-based planning and automated planning techniques. We compare the dose prediction accuracy of 3 prediction methods including statistical voxel dose learning, spectral regression, and ...
Landers, Angelia, Neph, Ryan, Ruan, Dan, Scalzo, Fabien, Sheng, Ke   +4 more
core  

Algorithm and performance of a clinical IMRT beam-angle optimization system

, 2003
This paper describes the algorithm and examines the performance of an IMRT beam-angle optimization (BAO) system. In this algorithm successive sets of beam angles are selected from a set of predefined directions using a fast simulated annealing (FSA ...
Bortfeld T, Bortfeld T Stein J Preiser K, Braunstein M, Chuang K S, Crooks S M, Das S, David Djajaputra, Geman S, Jackson A, Kirkpatrick S, Llacer J, Mageras G S, Metropolis N, Oldham M, Pugachev A, Pugachev A B, Qiuwen Wu, Radhe Mohan, Rowbottom C G, Rowbottom C G, Rowbottom C G, Spirou S V, Stein J, Webb S, Webb S, Wu Q, Wu Q, Xiang Y, Xing L, Yan Wu   +29 more
core   +1 more source