Results 31 to 40 of about 8,303,866 (364)
Statistical process control to monitor use of a web‐based autoplanning tool
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens+5 more
wiley +1 more source
Impact of flexible noise control (FNC) image processing parameters on portable chest radiography
Abstract There is a lack of understanding in the performance of flexible noise control (FNC) processing, which is used in digital radiography on a scanner vendor and has four parameters each involving multiple options. The aim of this study was to investigate the impact of FNC on portable chest imaging. An anthropomorphic chest phantom was imaged using
Krystal M. Kirby+6 more
wiley +1 more source
Abstract Purpose To evaluate the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking (MTT) using dual‐energy (DE) imaging. Methods A Varian TrueBeam linear accelerator was used to acquire a series of alternating 60 and 120 kVp images (over a 180° arc) using fast kV switching, on ...
Mandeep Kaur+9 more
wiley +1 more source
Digital radiography image quality evaluation using various phantoms and software
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas+4 more
wiley +1 more source
Effects of BRCA1 and BRCA2 gene mutations on female fertility among Chinese women: A systematic review and meta-analysis [PDF]
Purpose: It is still inconsistent whether the mutations of BRCAs could reduce the female fertility by increasing the prevalence of breast and ovarian cancer. So we focus on the effects of BRCAs mutations onthe female fertility among Chinese women in this
Ma Ruichen, Ma Yuhua, Zhao Jing
doaj +1 more source
Ex-nihilo II: Examination Syllabi and the Sequencing of Cosmology Education [PDF]
Cosmology education has become an integral part of modern physics courses. Directed by National Curricula, major UK examination boards have developed syllabi that contain explicit statements about the model of the Big Bang and the strong observational evidence that supports it. This work examines the similarities and differences in these specifications,
arxiv +1 more source
A Novel, Trauma-Informed Physical Examination Curriculum for First-Year Medical Students
Introduction Trauma is prevalent in the general population in various forms and has lasting effects on health. Physicians routinely examine patients who have experienced trauma, although most providers lack training in trauma-informed care, a well ...
Sadie Elisseou+2 more
semanticscholar +1 more source
Abstract This study aims to investigate the effects of the position correction of size‐specific dose estimates (SSDE) on patient dose estimation in cone beam computed tomography (CBCT). The relationship between the phantom position and absorbed dose in the right breast was studied using optically stimulated luminescence dosimeters and a simulated human
Hiroyuki Ueno+3 more
wiley +1 more source
Comparison of Diagnostic Accuracy of Physical Examination and MRI in the Most Common Knee Injuries
Purpose: This study evaluated the diagnostic accuracy of physical examination and magnetic resonance imaging (MRI) in knee injuries. Methods: Ninety-six patients at a regional hospital were included in the study.
P. Krakowski+5 more
semanticscholar +1 more source
Abstract The present study was conducted as part of a comprehensive work to establish National Diagnostic Reference Levels (NDRLs) in Sri Lanka for the first time. DRLs can be used as an effective optimization tool for identifying unusually high or low patient doses during X‐ray examinations.
Sachith Welarathna+3 more
wiley +1 more source