نتایج جستجو برای: treatment planning system

تعداد نتایج: 3598653  

Journal: :International Journal of Radiation Oncology*Biology*Physics 2015

Journal: :Radiotherapy and Oncology 2021

IntroductionMany approaches for automated treatment planning (autoplanning) have been proposed and investigated. Autoplanning can enhance plan quality compared to ‘manual’ trial-and-error planning, decrease routine workload. A few implemented in commercial systems (TPSs). We performed a pre-clinical validation of new system (‘NovelATP’) that is based on fully-automated multi-criterial optimizat...

Journal: :iranian red crescent medical journal 0
sedigheh sina radiation research center, shiraz university, shiraz, ir iran reza faghihi radiation research center, shiraz university, shiraz, ir iran; department of nuclear engineering, shiraz university, shiraz, ir iran; radiation research center, shiraz university, shiraz, ir iran. tel: +98-7116473474, fax: +98-7116473474 ali soleimani meigooni department of nuclear engineering, shiraz university, shiraz, ir iran; comprehensive cancer center of nevada, las vegas, nevada, usa zahra siavashpour department of radiation medicine, shahid beheshti university, tehran, ir iran mohammad amin mosleh-shirazi center for research in medical physics and biomedical engineering, shiraz university of medical sciences, shiraz, ir iran; department of radiotherapy and oncology, shiraz university of medical sciences, shiraz, ir iran

conclusions according to the results, the old dosimetry formalisms, overestimate the dose especially towards the applicator’s tip. while the tg-43u1 based software perform the calculations more accurately. results for a typical arrangement of 10 active pellets in the applicator, the percentage difference between doses obtained by the new algorithm at 1cm distance from the tip of the applicator ...

Journal: :International journal of radiation oncology, biology, physics 2003
David M Shepard Lawrence S Chin Steven J DiBiase Shahid A Naqvi Jinho Lim Michael C Ferris

PURPOSE To evaluate an automated treatment planning system for gamma knife radiosurgery. This planning system was developed in our clinic and is now in routine clinical use. The system simultaneously optimizes the shot sizes, locations, and weights. It also guides the user in selecting the total number of radiation shots. METHODS AND MATERIALS We assessed the clinical significance of the auto...

2011
Daniel Opp Kenneth Forster Vladimir Feygelman

We present a systematic approach to commissioning of the compensator-based IMRT in Pinnacle treatment planning system for commercially manufactured brass compensators. Some model parameters for the beams modulated by the variable-thickness compensators can only be associated with a single compensator thickness. To intelligently choose that thickness for beam modeling, we empirically determined ...

2009
Carla Alves de Oliveira Maria do Carmo Lopes Armanda Matos

PURPOSE To describe the tests that have been performed in order to commission the Brachytherapy module, version 3.2, service pack 3.0, of the Oncentra MasterPlan treatment plan system (OB), from Nucletron. The results were benchmarked against those obtained with the Plato system, v 14.3.7, also from Nucletron, used in the clinical routine. MATERIAL AND METHODS Commissioning was performed taki...

2014
Kunal Malhotra

One of the many challenges in the field of medicine is to make the best decisions about optimal treatment plans for patients. Medical practitioners often have differing opinions about the best treatment among multiple available options. While standard protocols are in place for the first and second lines of treatment for most diseases and at most hospitals, a lot of variation exists in the trea...

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