Increasing interest is drawn on hemodynamic parameters for classifying the risk of rupture as well as treatment planning of cerebral aneurysms. A proposed method to obtain quantities such as wall shear stress, pressure, and blood flow velocity is to numerically simulate the blood flow using computational fluid dynamics (CFD) methods. For the validation of those calculated quantities, virtually ...

OBJECTIVE To evaluate and point out the importance of prosthetic rehabilitation of upper extremity. METHODS A systematic literature search was performed to identify studies concerning prosthetic rehabilitation in upper extremity. The PRISMA Statement 2009 was used to establish the study and the methodological quality was assessed. RESULTS The literature search identified 620 studies. Of the...

Virtual Reality (VR) technology holds promise as a virtual prototyping tool for mechanical assembly; however, several developmental challenges still need to be addressed before virtual prototyping applications can successfully be integrated into the product realization process. This paper describes the development of SHARP (System for Haptic Assembly & Realistic Prototyping), a portable VR inte...

Incorporating the virtual reality technology into stroke rehabilitation has been proved to be effective in improving upper extremity function for stroke survivors. However, without haptic feedback, the recovery of pinch skill will not be sufficient for daily activities. Pinch skill is an important component for hand manipulation. Impaired pinch skill affects dexterity function after stroke. Thi...

A means of achieving real-time dosimetry for prostate brachytherapy using transrectal ultrasound (TRUS) and fluoroscopy has been developed. The approach is designed to fit into the current protocol used at the Vancouver Cancer Center (VCC) for prostate brachytherapy. The TRUS and fluoroscopic images are fused using a single fluoroscopic image of the TRUS probe. The tip of each needle, used to i...

Stroke is the leading cause of serious, longterm disability among American adults. Each year, nearly 400,000 people survive but suffer from neurological disability. Patients’ motivation and engagement during rehabilitation therapy is important because the amount, type and intensity of practice available to the patients during the recovery process is critical for the functional recovery after st...

To achieve realistic Augmented Reality (AR), shadows play an important role in creating a 3D impression of a scene. Casting virtual shadows on real and virtual objects is one of the topics of research being conducted in this area. In this paper, we propose a new method for creating complex AR indoor scenes using real time depth detection to exert virtual shadows on virtual and real environments...

Psychophysical functions for perceived roughness, relating ln (magnitude estimate of roughness) to ln (groove width), were obtained for blind and sighted participants in virtual reality using the PHANToM force feedback device. The stimuli were sinusoidal surfaces with groove widths between 0.675 mm and 20.700 mm. Group functions showed a similar nonlinearity to those obtained in physical realit...

The poster presents a PhD-project in which a virtual environment (VE) for mirror therapy will be developed and its applications explored. The development draws on recent findings in research on the concept of presence. Introduction: In recent years, systems have been proposed for neurorehabilitation that transfer the idea of mirror therapy [1] to virtual reality [2,3]. The visual illusion of a ...