نتایج جستجو برای: camera based epid
تعداد نتایج: 2968489 فیلتر نتایج به سال:
This study aimed to investigate direct and indirect correlations of methodologies bone quality analysis from brown egg layers, at final the production cycle. Twelve femurs Dekalb Brown laying hens, euthanized 85-week-old, were assessed evaluate breaking strength (BS), Seedor index (SI), mineral matter (MM), calcium (Ca) phosphorus (P) contents, besides cortical (CorD), medullar (MedD) epiphysis...
Download creatic cancer (PC) is a highly lethal disease with complex etiology involving both environmental netic factors. Although cigarette smoking is known to explain 25% of cases, data from recent studies sugat obesity and long-term type II diabetes are twomajor modifiable risk factors for PC. Furthermore, obed diabetes seem to affect the clinical outcome of patients with PC. Understanding t...
Nowadays, the subject of vision metrology network design is local enhancement of the existing network. In the other words, it has changed from first to third order design concept. To improve the network, locally, some new camera stations should be added to the network in drawback areas. The accuracy of weak points is enhanced by the new images, if the related vision constraints are satisfied si...
background: to correct patient positioning errors (setup errors) during prostate cancer treatment using epid and fiducial gold markers, to improve the accuracy of the dose delivery in these patients. materials and methods: fifteen patients with localized prostate carcinoma after implantation of fiducial gold markers in their prostate gland underwent the five-field imrt planning technique. the p...
OBJECTIVES AND AIM The objective of this study was to determine the origin of an arched back in cows during vaginal examination. Moreover, we tested whether the duration of an arched back and avoidance reactions during vaginal examination can be decreased by epidural anaesthesia or analgesic treatment. MATERIAL AND METHODS Behaviour during cleaning of the perivaginal region and during vaginal...
The problem of determining the in vivo dosimetry for patients undergoing radiation treatment has been an area of interest since the development of the field. More recent methods of measurement employ Electronic Portal Image Devices (EPID), or dosimeter arrays, for entrance or exit fluence determination. The more recent methods of in vivo dosimetry make use of detector arrays and reconstruction ...
The objective of this study was to assess the response to location-based services (LBS) by three key demographic groups within the United Kingdom (UK). This study took the form of a survey of relevant demographics, attitudes and consumer behaviour undertaken via a webbased survey. Results are based on over 1200 respondents, filtered and segmented into three demographic groups who are typically ...
Although portal dosimetry is used to provide quality assurance (QA) for intensity-modulated radiation therapy (IMRT) treatment plans, trends in agreement between the portal dose prediction (PDP) and the measured dose have not been clarified. In this work, we evaluated three scalar parameters of agreement for 152 treatment plans (1152 treatment fields): maximum gamma (gamma max), average gamma (...
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