منابع مشابه
Beam Selection in Radiotherapy Design
The optimal design of a radiotherapy treatment depends on the collection of directions from which radiation is focused on the patient. These directions are manually selected by a physician and are typically based on the physician’s previous experiences. Once the angles are chosen, there are numerous optimization models that decide a fluency pattern (exposure times) that best treats a patient. S...
متن کاملComparing Beam Selection Strategies in Radiotherapy Treatment Design: The Influence of Dose Point Resolution
The design of a radiotherapy treatment includes the selection of beam angles (geometry problem), the computation of a fluence pattern for each selected beam angle (intensity problem), and finding a sequence of configurations of a multilef collimator to deliver the treatment (realization problem). While many mathematical optimization models and algorithms have been proposed for the intensity pro...
متن کاملThe Influence of Dose Grid Resolution on Beam Selection Strategies in Radiotherapy Treatment Design
The design of a radiotherapy treatment includes the selection of beam angles (geometry problem), the computation of a fluence pattern for each selected beam angle (intensity problem), and finding a sequence of configurations of a multilef collimator to deliver the treatment (realization problem). While many mathematical optimization models and algorithms have been proposed for the intensity pro...
متن کاملIon Beam Radiotherapy
............................................................................................................... 3 43 PREFACE .................................................................................................................... 4 44 MAIN POINTS ............................................................................................................ 6 45 GLOSSARY ..................
متن کاملConsent to external-beam radiotherapy.
Canadian law, and the physician's code of ethics, requires that informed consent be obtained before any medical act is performed. However, there are no rules about how consent is to be obtained and by whom, and how that consent is to be documented.In April 2008, we asked the heads of all Canadian radiation oncology departments to tell us whether their centre uses a written consent form for exte...
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 2008
ISSN: 0024-3795
DOI: 10.1016/j.laa.2007.05.039