Results 251 to 260 of about 75,672 (296)

Intensity-Modulated Radiotherapy for Pancreatic Adenocarcinoma

International Journal of Radiation Oncology*Biology*Physics, 2012
To report the outcomes and toxicities in patients treated with intensity-modulated radiotherapy (IMRT) for pancreatic adenocarcinoma.Forty-seven patients with pancreatic adenocarcinoma were treated with IMRT between 2003 and 2008. Of these 47 patients, 29 were treated adjuvantly and 18 definitively.
Jonathan A, Abelson, James D, Murphy, Ann Yuriko, Minn, Melody, Chung, George A, Fisher, James M, Ford, Pamela, Kunz, Jeffrey A, Norton, Brendan C, Visser, George A, Poultsides, Albert C, Koong, Daniel T, Chang   +11 more
openaire   +2 more sources

Practical experience with intensity-modulated radiotherapy

The British Journal of Radiology, 2004
At the Ipswich Hospital implementation of intensity-modulated radiotherapy (IMRT) commenced in February 2001 based on an established 3D conformal radiotherapy (3D CRT) service. This paper describes our experiences as we commissioned a fully-integrated IMRT planning and delivery system, and established IMRT within the department.
H V, James, C D, Scrase, A J, Poynter
openaire   +2 more sources

Intensity-modulated radiotherapy for sinonasal teratocarcinosarcoma

Journal of Huazhong University of Science and Technology [Medical Sciences], 2011
Surgical excision and postoperative radiotherapy are widely accepted therapeutic modalities for sinonasal teratocarcinosarcoma (SNTCS). Previous studies have shown that intensity-modulated radiation therapy (IMRT) is safe and effective for the treatment of some sinonasal malignancies.
Gang, Peng, Yang, Ke, Tao, Wang, Yiming, Feng, Yuehua, Li, Gang, Wu   +5 more
openaire   +2 more sources

Rectal Radiotherapy — Intensity-modulated Radiotherapy Delivery, Delineation and Doses

Clinical Oncology, 2016
The use of intensity-modulated radiotherapy in rectal cancer is attractive in that it may reduce acute and late toxicities and potentially facilitate dose escalation. Intensity-modulated radiotherapy probably has a role in selected patients, but further investigation is required to identify the parameters for selection.
S, Teoh, R, Muirhead
openaire   +2 more sources

Intensity modulation methods for proton radiotherapy

Physics in Medicine and Biology, 1999
The characteristic Bragg peak of protons or heavy ions provides a good localization of dose in three dimensions. Through their ability to deliver laterally and distally shaped homogenous fields, protons have been shown to be a precise and practical method for delivering highly conformal radiotherapy.
openaire   +2 more sources

Gradients and intensity modulated radiotherapy

Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Cat. No.00CH37143), 2002
A consequence of the advent of intensity modulated radiation therapy (IMRT) is the presence of large dose gradients surrounding the tumor, and the regions at risk (RAR's) near the tumor. Unlike standard radiotherapy, these gradients are not the chance result of a few beam choices, but rather they are strategically placed by the optimization software. A
J.M. Kapatoes, G. Olivera, P. Reckwerdt, H. Keller, J. Balog, T.R. Mackie   +5 more
openaire   +1 more source

Quality assurance of intensity-modulated radiotherapy

Seminars in Radiation Oncology, 2002
Intensity-modulated radiation therapy (IMRT) requires the use of inverse treatment planning and nonuniform fluence beams delivered by a series of complex radiation portals. The quality assurance procedures for conventional three-dimensional conformal radiation therapy (3D-CRT) have been developed and are in worldwide clinical use, but the more complex ...
openaire   +2 more sources

Exploration of tradeoffs in intensity-modulated radiotherapy

Physics in Medicine and Biology, 2005
The purpose of this study is to calculate Pareto surfaces in multi-criteria radiation treatment planning and to analyse the dependency of the Pareto surfaces on the objective functions used for the volumes of interest. We develop a linear approach that allows us to calculate truly Pareto optimal treatment plans, and we apply it to explore the tradeoff ...
David, Craft, Tarek, Halabi, Thomas, Bortfeld   +2 more
openaire   +2 more sources

Hardware-sensitive optimization for intensity modulated radiotherapy

Physics in Medicine and Biology, 2000
The multileaf collimator (MLC) hardware constraints are usually neglected in the process of intensity-modulated beam optimization. Consequently, it is not always possible to deliver planned beam modulation using dynamic MLC. Beam optimization is significantly diminished if the results must be approximated due to limitations imposed by the delivery ...
P S, Cho, R J, Marks
openaire   +2 more sources

Intensity-modulated radiotherapy of the female breast

Medical Dosimetry, 2002
Current methods for intensity-modulated radiotherapy (IMRT) in breast cancer use forward planning based on equivalent radiological path length to design intensity modulated tangential beams. Compared to conventional tangential techniques, dose reduction of organs at risk is limited using these techniques.
Christoph, Thilmann, Angelika, Zabel, Simeon, Nill, Bernhard, Rhein, Angelika, Hoess, Peter, Haering, Stefanie, Milke-Zabel, Wolfgang, Harms, Wolfgang, Schlegel, Michael, Wannenmacher, Juergen, Debus   +10 more
openaire   +2 more sources