Results 161 to 170 of about 39,150 (184)

Preservation of parotid function with uncomplicated conformal radiotherapy

Radiotherapy and Oncology, 2002
To evaluate (1) parotid function, (2) subjective xerostomia and (3) pattern of relapses after conformal parotid-sparing radiotherapy (RT) for head and neck cancer. (4) To study dose-response curves of parotid glands.From September 1999 to November 2000, 39 head and neck cancer patients requiring bilateral neck RT were treated with a fairly simple ...
Maes, Annelies, Weltens, Caroline, Flamen, Patrick, Lambin, Philippe, Bogaerts, Ria, Liu, Xuan, Baetens, Jan, Hermans, Robert, Van den Bogaert, Walter   +8 more
openaire   +3 more sources

Conformal Radiotherapy for Spinal Lesions

2008
In the spine, as elsewhere, conventional doses and treatment schedules in radiotherapy have been titrated to the clinical tolerance of normal tissues. Protracted treatment courses delivered over several weeks, “fractionated schedules,” are a radiobiological compromise employed to permit normal tissue repair between multiple small doses of radiation ...
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Treatment plan optimisation in conformal radiotherapy

Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Cat. No.00CH37143), 2002
The automated plan optimisation scheme optimises the beam-orientations and beam-weights for noncoplanar plans simultaneously. The required speed-up in the optimisation process was achieved through the use of random voxels in the beam-weight optimisation section and employing a simple dose model neglecting inhomogeneity correction.
S. Webb, V. Khoo, C. Rowbottom
openaire   +2 more sources

A distributed simulation framework for conformal radiotherapy

2008 IEEE International Symposium on Parallel and Distributed Processing, 2008
This paper describes the RTGrid distributed simulation framework for conformal radiotherapy. We introduce novel approaches through which several distributed computing technologies are made accessible to Monte Carlo simulations for radiotherapy dose calculations.
G. Yaikhom, J. P. Giddy, D. W. Walker, P. Downes, E. Spezi, D. G. Lewis   +5 more
openaire   +2 more sources

A maximum‐entropy method for the planning of conformal radiotherapy

Medical Physics, 2001
The maximum entropy method (MEM) is a powerful inverse analysis technique that is used in many fields of science and engineering to perform tasks such as image reconstruction and processing of nuclear magnetic resonance signals. Unlike other methods, MEM naturally incorporates a priori knowledge of the problem into the optimized cost function.
Xingen Wu, Yunping Zhu
openaire   +3 more sources

Quality Management in Conformal Radiotherapy

2000
Any quality management system in radiotherapy aims at three key issues, (i) state of the art treatment, (ii) accuracy of dose delivery and (iii) safety for the patient, staff and public. Furthermore, cost effectiveness and motivation of the entire staff is expected to emanate from an adequate and properly designed QMS.
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Conformal Radiotherapy for Carcinoma of the Prostate

1996
Although the optimum role for radiotherapy in the treatment of prostate cancer (CaP) remains controversial (e.g., Stamey et al. 1993; Kaplan et al. 1993; Bagshaw et al. 1994), there is general agreement as to what the goal of radiotherapy should be when it is used.
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Conformal Radiotherapy: Simulation and Contouring

2018
The difference between conventional radiotherapy and conformal radiotherapy lies in the use of planning CT to define tumour volume and design treatment portals wherein treatment positions are checked by CT scans, target volumes and OARs defined and beams positioned. After planning CT is done with patient immobilized in treatment position, the treatment
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Conformal and Intensity-Modulated Radiotherapy [PDF]

, 2007
P Mayles, Alan E. Nahum, J.C Rosenwald
openaire   +3 more sources

Comparison of dynamic conformal radiotherapy with micro-multileaf collimator vs arc non conformal radiotherapy vs static conformal radiotherapy

European Journal of Cancer, 2001
M. Fumagalli, L. Fariselli, M. Mapelli, I. Milanesi   +3 more
openaire   +2 more sources