Designing the user interface of a virtual needle insertion trainer

Abstract

In interventional radiology, inserting a needle to perform a biopsy requires a high haptic sensitivity. The traditional learning methods based on observation of skilled clinicians and training on real patients are questionable. Virtual Reality (VR) surgical simulators have previously been shown to be efficient for training. However, there is a lack of guidelines to ensure the fidelity of these simulators. In this paper, an iterative design approach is used to design and evaluate the user interface for a VR needle insertion trainer. Two experimental studies were conducted to evaluate some aspects of the system user interface. Results permit to validate some design choices and suggest future design directions to improve the interface and environment fidelity of the system.

Design and Testing of Two Haptic Devices Based on Reconfigurable 2R Joints

“…The obtained grade can be used in statistical tests. Among the most widespread tests in studies of haptic devices are the analysis of variance (ANOVA) [35][36][37], the Mann-Whitney U test [38][39][40][41] and the Friedman test [42,43].…”

Impact of immersion on the performance of haptic virtual reality for inferior alveolar nerve anesthesia training.

“…The literature provides evidence that the projected hand, when synchronized with the real hand, is beneficial in motor tasks. For example, in the biopsy procedure Benyahia et al (2015) and Nguyen, Lakhal e Chellali (2015) showed that the non-animated virtual hand increased the participant's feeling of accuracy when manipulating the virtual syringe. The authors also argued that the virtual hand increases the depth perception providing additional spatial cues to the trainers in the virtual environment.…”