background: the recent developments in tissue doppler imaging (tdi) now more than ever permit the quantification of the myocardial function. in the current systems, tissue tracking or displacement curves are generated from color tissue doppler data through the instantaneous temporal integral of velocity-time curves. methods: the purpose of the present study was to assess regional myocardial dis...

background and aim: patients who receive hemodialysis need effective education in order to maintain their health. one of the effective methods for education is computer-assisted education. the aim of this study was to compare the impacts of computer-assisted multimedia education and traditional method on clinical parameters of patients receiving hemodialysis. methods: in this interventional stu...

objectives: the purpose of this study was to develop and test a new tool for radiographic densitometry by combining periapical films and aluminum step wedge. materials and methods: we reviewed 50 kodak e-speed intraoral films. an aluminum step wedge consisting of 16 steps was constructed. each step was 1mmx3mx10mm. the step wedge was exposed to varying exposure times, ranging from 0.05 second t...

This study aims to evaluate the 2-year post-operative clinical outcomes of patients undergoing total knee arthroplasty (TKA) with computer-assisted surgery (CAS) using the pinless BrainLAB® VectorVision® Knee 2.5 Navigation System versus standard CAS. A retrospective case-control study of 200 patients who underwent TKA with CAS from 2008 to 2012 was conducted. Patients in the pinless arm underw...

Computer-assisted orthopaedic surgery was born in the 1990s. Nowadays, computer-assisted orthopaedic surgery is used for transpedicular screw fixation and for total knee arthroplasty.Patient-specific instrumentation is one type of computer-assisted surgery based on volumetric images, such as computed tomography or magnetic resonance imaging.In this article, possible applications of patient-spec...

In the following we introduce a general semantic framework for system specification, based on the specification context between systems, system properties and system observations. The rationale of the chosen approach is discussed thoroughly in [4]. Technically, it draws implicitly on the mathematical properties of Galois schemes [3], structures based on Galois connections [5], which have alread...

The possible causal relationship between playing digital games and interest in computer science has been explored by researchers and outreach programs working on broadening participation in CS. This paper reviews empirical data from over 1,000 students at a technical university regarding their interest in CS and their frequency of game play. The data suggest that gaming is a significant, but sm...

Computer assisted surgery (CAS) was used to improve the positioning of implants during total knee arthroplasty (TKA). Most studies have reported that computer assisted navigation reduced the outliers of alignment and component malpositioning. However, additional sophisticated studies are necessary to determine if the improvement of alignment will improve long-term clinical results and increase ...

BACKGROUND A combination of two emerging technologies, computer-assisted navigation and minimally invasive surgery, in total knee arthroplasty has gained increasing interests from orthopedic surgeons around the world. To date, there has never been any midterm study for clinical and radiographic outcomes from using an electromagnetic computer-assisted navigation system. In this study, we aimed t...