context-aware system, called ViCare, interprets the elderly activities
based on data captured by several sensors placed in their environment
and decides what health or other services should be
provided. Zhang et al. [28] proposed a solution for WBSNs to preserve
integrity, safety, and privacy of medical data over the network.
The authors present a key agreement scheme in which
neighbor nodes of wireless body sensor networks (WBSNs) share
a common key generated by ECG signals. Efficient management
of medical multimedia data from various heterogeneous sources
is addressed in [29]. Furthermore, a prototype for knowledge editing
service (KES) is presented in [30]. This solution enables clinicians
through an ICT platform to insert new knowledge for
multisource data management in remote health monitoring. In
[31], a cross layer design for a Wi-Max in order to deliver ultrasound
video data through mobile devices is presented. Finally, a
virtual reality-based surgical simulator for the mandibular angle
reduction on a CUD-based platform is presented in [32]. This simulator
provides stimulus and sensations for surgeons controlling
instruments under different surgical situations and environments.
These recent advances on e-Health services provide and improve
patient care. However, the use of ICT solutions in healthcare services
creates new potential health hazards [33].
A long road is still a head in many countries that continue
adopting typical and old healthcare models based on the early
20th century. Nevertheless, the proportion of hospital income that
is invested in ICT has doubled in recent years. Since the 1980s,
investments in healthcare technologies and its growth have been
a key factor, among others, for increasing healthcare spending
among countries [34]. Currently, this spending growth is declining
and technology is becoming an important factor to decrease
healthcare costs. However, a new paradigm rises. Both patients
and healthcare professionals are everyday embracing mobile technologies
and mobile healthcare services. These services are having
a great impact on healthcare industry and truly revolutionizing the
healthcare delivery [35].