Lefteris G. Gortzis

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Telehealth is the exchange of health information and the provision of health care services through electronic information and communications technology, where participants are separated by geographic, time, social and cultural barriers. The shift of telemedicine from desktop platforms to wireless and mobile technologies is likely to have a significant(More)
In medicine a clinical entity is usually represented by different synonymous keywords, meaning that physicians are dealing with a rapidly changing, unstructured and qualitatively heterogeneous data sharing environment while trying to pick up the needed data of decision making. In recent years, ontologies have been adopted in many scientific communities as a(More)
BACKGROUND The performance of separate Intensive Care Unit (ICU) status scoring systems vis-à-vis prediction of outcome is not satisfactory. Computer-based predictive modeling techniques may yield good results but their performance has seldom been extensively compared to that of other mature or emerging predictive models. The objective of the present study(More)
This study proposes a prototype framework (THEMIS) for estimating algebraically the success (S) of the electronic health collaborative services (e-HCS) and examines two hypotheses: first, that the S estimation of an e-HCS, developed by a third-party vendor, demands a 'shrunk formative model' and second that causal relationships between the involved(More)
The selection of a new healthcare information system (HIS) has always been a daunting process for clinicians, health care providers and policy makers. The objective of this study is to present the lessons learned and the main findings from several relevant case studies to support this process. Data were collected by retrospectively reviewing the summative(More)
Multidisciplinary collaboration is a key requirement in several contemporary interventional radiology procedures (IRPs). We proposed a hybrid system (NetAngio) to enable "on the fly" heterogeneous collaboration to support IRP providing intraoperating essential services, and investigate its feasibility and effectiveness in a referral medical center. We have(More)
OBJECTIVES The selection of a portable biomedical device (PBD) is a key issue regarding telecare service design. The objective of this study is to investigate the accuracy parameters of a PBD under different settings and levels. METHODS AND MATERIALS By using a commercial PBD, trials were performed in a referral cardiology center and on the Olympia(More)
OBJECTIVES Integration of administrative and clinical data, imaging, and expert services, although challenging,is a key requirement in contemporary interventional cardiology facilities (ICF). We propose a workflow-oriented hybrid system to support the ICF and investigate its feasibility and effectiveness ina referral medical center. METHODS We have(More)
The most crucial factor when dealing with heart attack incidents is the fast and accurate diagnosis and pre-hospital service of the patient. Considering the need of handling time efficiently, emphasis is paid on the interval time management starting from the moment the incident is recognized up to the time the patient is in an emergency unit. In order to(More)