نتایج جستجو برای: bn20
تعداد نتایج: 47 فیلتر نتایج به سال:
PURPOSE To assess treatment toxicity and patients' survival/quality of life (QoL) after volumetric modulated arc therapy (VMAT) with simultaneous in-field boost (SIB) for cancer patients with 1 - 4 brain metastases (BM) treated with or without surgery. METHODS AND MATERIALS Between March and December 2010, 29 BM patients (total volume BM, < 40 cm3) aged < 80 years, KPS ≥ 70, RPA < III were in...
PURPOSE To report the dosimetric results and impact of volumetric arc therapy (VMAT) on temporary alopecia and hair-loss related quality of life (QOL) in whole brain radiotherapy (WBRT). METHODS The potential of VMAT-WBRT to reduce the dose to the hair follicles was assessed. A human cadaver was treated with both VMAT-WBRT and conventional opposed field (OF) WBRT, while the subcutaneously abs...
Since exact probabilistic inference is intractable in general for large multiply connected belief nets, approximate methods are required. A promising approach is to use heuristic search among hypotheses (instantiations of the network) to find the most probable ones, as in the TopN algorithm. Search is based on the relative probabilities of hypotheses which are efficient to compute. Given upper ...
A BN2O network is a Bayesian network having the structure of a bipartite graph with all edges directed from one part (the top level) toward the other (the bottom level) and where all conditional probability tables are noisy-or gates. In order to perform efficient inference, graphical transformations of these networks are performed. The efficiency of inference is proportional to the total table ...
EDWARD C. DICKINSON1, RICHARD SCHODDE2, SVEN KULLANDER3, PIERRE ANDRÉ CROCHET4, ANDY ELLIOTT5& GUY M. KIRWAN6 1Flat 3, Bolsover Court, 19 Bolsover Road, Eastbourne, BN20 7JG, U.K. E-mail: [email protected] 2Australian Biological Resources Study, G.P.O. Box 787, Canberra City, ACT, Australia 2601. E-mail: [email protected] 3Department of Zoology, Swedish Museum of Natural History, P. O....
مقدمه: سنجش کیفیت زندگی مرتبط با سلامت در بیماران مبتلا به تومور مغری به علت عدم درمان قطعی از اهمیت ویژه ای برخوردار است. هدف مطالعه حاضر بررسی کیفیت زندگی بیماران مبتلا به تومور مغزی و شناخت عوامل تاثیر گذار بر آن بود. مواد و روش ها: در این پژوهش توصیفی-تحلیلی 194 بیمار مبتلا به تومور مغزی از بیمارستان شریعتی تهران مورد بررسی قرار گرفتند. بیماران واجد شرایط پس از آگاهی از مطالعه و اهداف آن، پ...
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