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2009 JUN 15 ... fluence map by introducing the concept of sparsity of fluence maps and formulate the inverseplanning problem into a framework of compressing sensing. In this approach, the ... inverse planning problem into a framework of compressing sensing. In this approach, the treatment planning is modeled as a multiobjective optimization problem, with one objective on the ...
2009 APR 27 ... planning or image reconstruction in diffuse optical tomography require solving the inverse problem given a desired dose distribution or absorber distribution, respectively. A ... Canada report.
"However, applications such as photodynamic therapy treatment planning or image reconstruction in diffuse optical tomography require solving the ...
2009 NOV 17 ... to the target volume and dose constraints to critical structures were prescribed, the inverse treatment planning function determined the optimal treatment plan. A series of 279 patients with cerebral ...
2009 FEB 2 ... Bragg peaks (SOBPs). Proton plans were generated on an in-house Monte Carlo-based inverse-planning system. Fifteen prostate IMRT plans previously used for patient treatment have ...
2009 NOV 30 ... "Parameter optimization in the process of inverse treatment planning for intensity modulated radiation therapy (IMRT) is mainly conducted by human planners ...
2009 JAN 12 ... we present a treatmentplanning scheme for AMRT, which addresses the challenges in inverseplanning, leaf sequencing and dose calculation," wrote C. Wang and colleagues, ...
2009 JAN 12 ... Biology (Using total-variation regularization for intensity modulated radiation therapy inverseplanning with field-specific numbers of segments. Physics in Medicine and Biology, ... "Currently, there are two types of treatment planning algorithms for intensity modulated radiation therapy (IMRT). The beamlet-based ...
2009 JAN 19 ... deliveries to a CIRS anthropomorphic heterogeneous phantom with typical clinical inverseplanning and delivery settings. Point measurements with A1SL ion chambers and relative ... modulated radiation therapy that allows for image guided adaptive radiotherapy. Its treatment planning system (TPS) uses a convolution superposition algorithm for dose distribution ...
2009 APR 28 ... half-lives are influenced by the low limit of quantification of the bioassay method (inverse correlation) and by the blood sampling period (direct correlation)," wrote A. Marzo ... Germany.
Keywords: Switzerland, Life Sciences, Drug Development, Therapy, Treatment, Drug Discovery, Drug Discovery and Design.
This article was prepared by ... "In planning comparative bioavailability and bioequivalence trials, the half-life of the parent ...
2009 JAN 19 ... According to recent research published in the journal Medical Physics, "A new inverse treatment planning system (TPS) for external beam radiation therapy with high energy photons is ...
2009 NOV 16 ... in cases of changing geometry, tumor shrinkage or presence of metal implants. Inverse treatment planning for prostate cancer patients with bilateral hip replacements was performed based upon an ...
2009 JAN 26 ... uptake value) 3 and SUV 5. The resulting dose distribution is then planned using the inverse Monte Carlo treatment-planning system IKO. In a theoretical study, the dose range is ...
2009 FEB 16 ... optimal solutions constitute the Pareto front. The Pareto concept applies well to the inverseplanning process, which involves inherently contradictory objectives, high and uniform ... New investigation results, 'The feasibility of using Pareto fronts for comparison of treatment planning systems and delivery techniques,' are detailed in a study published in Acta ...
2009 JUN 8 ... arc therapy was planned using the arc modulation optimization algorithm inverseplanning module of ERGO++," scientists in Hongo, Japan report.
... "Dose verification of intensity-modulated arc therapy using an ERGO++ treatment planning system and Elekta internal multileaf collimators is described. Prostate ...
2009 MAR 9 ... agonists) alter alcohol consumption in animals and humans. Studies have also shown an inverse relationship between alcohol use and cerebrospinal fluid levels of serotonin ... to characterize regional brain serotonin synthesis in nondepressed chronic alcoholics at treatment entry in comparison to normal nonalcoholic controls using PET and the tracer ... with serotonergic abnormalities in brain regions that are known to be involved in planning, judgment, self-control, and emotional regulation."
Nishikawa and ...
2009 FEB 17 ... changes with varying ANB and profile angles were then examined. There was a tendency for inverse correlations between profile change and profile angle, and for positive correlations ... "The potential to improve facial esthetics is often the deciding factor in treatmentplanning of borderline orthodontic patients who can be treated with either orthognathic ...
2009 MAY 4 ... a fully automatic dynamic gamma knife radiosurgery treatmentplanning system, where the inverseplanning problem is solved as a traveling salesman problem combined with constrained ...
2008 DEC 1 ... uptake value) 3 and SUV 5. The resulting dose distribution is then planned using the inverse Monte Carlo treatment-planning system IKO. In a theoretical study, the dose range is ...
2008 DEC 22 ... toxicity by creating highly conformal dose distributions. However, the inverseplanning process can create a suboptimal plan despite meeting all constraints," ... a satisfactory plan while providing information regarding trade-offs between different treatment planning goals. In this exploratory study, we examine the feasibility and utility of MCO ...
2008 DEC 29 ... State University.
The researchers concluded: "These advances include inverseplanning, handling the effects of motion and uncertainty, biological planning, and ... A report, 'The role of medical physicists and the AAPM in the development of treatment planning and optimization,' is newly published data in Medical Physics. "Developments ...
