نتایج جستجو برای: treatment qa and pre

تعداد نتایج: 17087008  

Journal: :Medical physics 1998
B Fraass K Doppke M Hunt G Kutcher G Starkschall R Stern J Van Dyke

In recent years, the sophistication and complexity of clinical treatment planning and treatment planning systems has increased significantly, particularly including three-dimensional (3D) treatment planning systems, and the use of conformal treatment planning and delivery techniques. This has led to the need for a comprehensive set of quality assurance (QA) guidelines that can be applied to cli...

2015
Gueorgui Gueorguiev Christopher Cotter Julie Catherine Turcotte Bruce Crawford Gregory Sharp Mufeed Mah'D

This work aims at three goals: first, to define a set of statistical parameters and plan structures for a 3D pretreatment thoracic and prostate intensity-modulated radiation therapy (IMRT) quality assurance (QA) protocol; secondly, to test if the 3D QA protocol is able to detect certain clinical errors; and third, to compare the 3D QA method with QA performed with single ion chamber and 2D gamm...

پایان نامه :0 1374

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد علوم دارویی - پژوهشکده علوم 1392

purpose a metabolic abnormality such as obesity is a major obstacle in the maintenance of the human health system and causes various chronic diseases including type 2 diabetes, hypertension, cardiovascular diseases, as well as various cancers. this study was designed to summarize the recent scientific knowledge regarding the anti-obesity role of curcumin (diferuloylmethane), which is isolated f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده حقوق 1389

abstract the third millennium has started, but the world is facing with serious challenges in achieving international security and peace. various human rights violations have lead the states to find means to protect human rights. also article 55 of the united nations charter introduces the respect to human rights and fundamental freedom as the most suitable ways to realize peace and security. ...

Journal: :iranian journal of medical physics 0
mahbobeh nazarnejad science and research branch, islamic azad university, tehran, iran

introduction dosimetric accuracy is a major issue in the quality assurance (qa) program for treatment planning systems (tps). an important contribution to this process has been a proper dosimetry method to guarantee the accuracy of delivered dose to the tumor. in brachytherapy (bt) of gynecological (gyn) cancer it is usual to insert a combination of tandem and ovoid applicators with a complicat...

2008
Adrian Iftene Ionut Pistol Diana Trandabat

This year marked UAIC 1 ’s third consecutive participation at the QA@CLEF competition, with continually improving results. The most significant changes to our system with regards to last year is the partial transition to a real-time QA system, consequences being the simplification or elimination of principal time-consuming tasks such as linguistic pre-processing. A brief description of our syst...

2017
Georg Wiese Dirk Weissenborn Mariana L. Neves

This paper describes our submission to the 2017 BioASQ challenge. We participated in Task B, Phase B which is concerned with biomedical question answering (QA). We focus on factoid and list question, using an extractive QA model, that is, we restrict our system to output substrings of the provided text snippets. At the core of our system, we use FastQA, a state-ofthe-art neural QA system. We ex...

Journal: :international journal of health policy and management 2015
asgar aghaei hashjin dionne kringos hamid ravaghi jila manoochehri hassan abolghasem gorji

background iran has a widespread diagnostics and clinical support services (dcss) network that plays a crucial role in providing diagnostic and clinical support services to both inpatient and outpatient care. however, very little is known on the application of quality assurance (qa) policies in dcss units. this study explores the extent of application of eleven qa strategies in dcss units withi...

2007
Ana Cristina Mendes Luísa Coheur Nuno J. Mamede Ricardo Ribeiro Fernando Batista David Martins de Matos

This paper presents QA@LF, the question-answering system developed at LF, INESC-ID. QA@LF follows different strategies according with the question type, and relies strongly on named entity recognition and on the pre-detection of linguistic patterns. Each question type is mapped into a single strategy; however, if no answer is found, the system proceeds and tries to find an answer using one of t...

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