Showing papers by "Andreas Triantafyllidis published in 2014"

Development and usability of a personalized sensor-based system for pervasive healthcare.

Abstract: Although a plethora of remote health monitoring systems have been proposed for chronic conditions, the challenge posed by the changing patient needs and the requirement for personalization in health monitoring to move beyond proprietary, difficult to extend, and unsustainable solutions still pertains. In this direction, we describe a mobile health system based on a smartphone, portable/wearable sensors for measuring the patient's physiological parameters, and back-end platforms for the health professionals to monitor the patient condition and configure monitoring plans in an individualized manner. A prototype system was developed based on a Service-oriented Architecture and integrating commercially available sensing devices. An experimental study has been conducted with 53 patients in order to investigate the usability of the proposed system. The patients were able to perform the majority of the target tasks successfully (Success Rate = 77%), while the perceived usability using the System Usability Scale (SUS) was found to be above average (SUS score = 73%), indicating that the patients overall perceived the system as both easy to use and useful.

Supporting heart failure patients through personalized mobile health monitoring

Abstract: Heart failure is a common chronic condition requiring frequent attention and ongoing provision of healthcare services. In this context we present a personalized mobile-based home monitoring system aiming to support heart failure patients in daily self-monitoring of their condition. An Internet-linked tablet computer and various portable and wearable sensing devices are employed in order to monitor the patient's physiological parameters and enable healthcare professionals to review patient's status remotely. The proposed system supports the activation/deactivation of system functional components by healthcare professionals during run-time operation, the unobtrusive remote upgrade of the mobile system through a private application distribution channel, and the automatic recording of user interactions, in order to meet the patient's ongoing individualized preferences and healthcare needs. Preliminary results from an observational cohort study indicate that heart failure patients find the proposed system acceptable and consider it useful for self-monitoring their condition.