Results 331 to 340 of about 154,558 (375)

Intensity-Modulated Radiotherapy

The Cancer Journal, 2002
Intensity-modulated radiotherapy represents a recent advancement in conformal radiotherapy. It employs specialized computer-driven technology to generate dose distributions that conform to tumor targets with extremely high precision. Treatment planning is based on inverse planning algorithms and iterative computer-driven optimization to generate ...
C. Clifton Ling, Chandra Burman, Zvi Fuks, Laura Happersett, Spiridon V. Spirou, Andrew Jackson, Chen-Shou Chui, Steven A. Leibel, Gikas S. Mageras, Suzanne L. Wolden, Howard Amols, Kaled M. Alektiar, Margie Hunt, Thomas LoSasso, Kenneth E. Rosenzweig, Ellen D. Yorke, Michael J. Zelefsky, L Hong   +17 more
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Intensity modulation methods for proton radiotherapy [PDF]

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.
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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, Thomas Bortfeld, T Halabi
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The Implementation of Intensity-modulated Radiotherapy in the UK

Clinical Oncology, 2010
Radiotherapy in the UK lags behind that in much of Europe in terms of both the low proportion of cancer patients gaining access to treatment and the long waiting times [1] and [2]. The technical quality of radiotherapy is also a cause for concern.
Ranald I Mackay, T. Cooper, D.S. Routsis, Neil G. Burnet, John Staffurth, M.V. Williams   +5 more
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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.
A. Poynter, C D Scrase, H.V. James
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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 Hoess, Bernhard Rhein, Stefanie Milker-Zabel, Angelika Zabel, Michael Wannenmacher, P. Haering, Simeon Nill, Wolfgang Harms, Wolfgang Schlegel, Juergen Debus   +10 more
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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.
Ann Yuriko Minn, Daniel T. Chang, Jeffrey A. Norton, J.A. Abelson, Pamela L. Kunz, George A. Fisher, Albert C. Koong, Melody P. Chung, Brendan C. Visser, George A. Poultsides, James D. Murphy, James M. Ford   +11 more
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Intensity-Modulated Radiotherapy

2012
Intensity-modulated radiotherapy (IMRT) is a radiation delivery technique that allows “dose sculpting” to improve target coverage while sparing normal tissues. In an IMRT plan, the number of photons delivered (or “fluence”) varies within a field. Such variability can be used to avoid normal structures with lower radiation tolerance than the cancer and ...
Devon J. Godfrey, W. Robert Lee, Bridget F. Koontz   +2 more
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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.
Yiming Feng, Tao Wang, Yuehua Li, Yang Ke, Gang Peng, Gang Wu   +5 more
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Intensity-modulated Radiotherapy in the Treatment of Prostate Cancer

Clinical Oncology, 2012
Intensity-modulated radiotherapy (IMRT) is an advancement in radiotherapy that uses intensity-modulated beams, which can provide multiple intensity levels for any single beam direction and any single source position, allowing shaped distributions and dose gradients with narrower margins than previously possible.
R.B. Rumble, J Chen, Glenn Bauman, Andrew Loblaw, Padraig Warde   +4 more
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