منابع مشابه
A more robust biologically based ranking criterion for treatment plans.
which has been adopted by several authors (2–4), has some undesirable properties. For example, changing the absolute value of the NTCP in two competing treatments plans by the same proportion can sometimes change the relative ranking of the plans. Langer et al. (1) point out that this is because, if Eq. 1 is used as the score for ranking plans, for a given value of TCP, a small fractional chang...
متن کاملImpact of time-related factors on biologically accurate radiotherapy treatment planning
BACKGROUND The incomplete repair (IR) model expresses the cell repair effect from radiation-induced damage over time, which is given little consideration in actual treatment planning. By incorporating the IR model into the normal tissue complication probability (NTCP), the accuracy and safety of treatment plan evaluations concerning the effect of repair can be improved. This study aims to evalu...
متن کاملApplications of the Biologically Effective Uniform Dose to Adaptive Tomotherapy and Four-dimensional Treatment Planning
The ultimate goal of radiation therapy is to efficiently deliver radiation in order to eradicate tumors, while adequately sparing nearby normal tissues. With the emergence of advanced technologies in radiation delivery, more and more conformal radiation delivery has been achieved in order to overcome challenges such as motion management between treatment fractions as well as during radiation de...
متن کاملMonte Carlo-based inverse treatment planning.
A Monte Carlo based inverse treatment planning system (MCI) has been developed which combines arguably the most accurate dose calculation method (Monte Carlo particle transport) with a 'guaranteed' optimization method (simulated annealing). A distribution of photons is specified in the tumour volume; they are transported using an adjoint calculation method to outside the patient surface to buil...
متن کاملAn Approach in Radiation Therapy Treatment Planning: A Fast, GPU-Based Monte Carlo Method
Introduction: An accurate and fast radiation dose calculation is essential for successful radiation radiotherapy. The aim of this study was to implement a new graphic processing unit (GPU) based radiation therapy treatment planning for accurate and fast dose calculation in radiotherapy centers. Materials and Methods: A program was written for parallel runnin...
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ژورنال
عنوان ژورنال: Acta Oncologica
سال: 1999
ISSN: 0284-186X,1651-226X
DOI: 10.1080/028418699432789