Browsing by Author "Nikita, Konstantina S"
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- ItemA communication and information technology infrastructure for real time monitoring and management of type 1 diabetes patients.(2007-11-16) Skevofilakas, Marios; Mougiakakou, Stavroula G; Zarkogianni, Konstantia; Aslanoglou, Erika; Pavlopoulos, Sotiris A; Vazeou, Andriani; Bartsocas, Christos S; Nikita, Konstantina SThis paper is focused on the integration of state of the art technologies in the fields of telecommunications simulation algorithms and data mining in order to develop a Type 1 diabetes patient s semi to fully automated monitoring and management system The main components of the system are a glucose measurement device an insulin delivery system insulin injection or insulin pumps a mobile phone for the GPRS network and a PDA or laptop for the Internet In the medical environment appropriate infrastructure for storage analysis and visualizing of patients data has been implemented to facilitate treatment design by health care experts
- ItemNovel methodology to characterize electromagnetic exposure of the brain.(2011-01-03) Crespo-Valero, Pedro; Christopoulou, Maria; Zefferer, Marcel; Christ, Andreas; Achermann, Peter; Nikita, Konstantina S; Kuster, NielsDue to the greatly non uniform field distribution induced in brain tissues by radio frequency electromagnetic sources the exposure of anatomical and functional regions of the brain may be a key issue in interpreting laboratory findings and epidemiological studies concerning endpoints related to the central nervous system This paper introduces the Talairach atlas in characterization of the electromagnetic exposure of the brain A hierarchical labeling scheme is mapped onto high resolution human models This procedure is fully automatic and allows identification of over a thousand different sites all over the brain The electromagnetic absorption can then be extracted and interpreted in every region or combination of regions in the brain depending on the characterization goals The application examples show how this methodology enhances the dosimetry assessment of the brain based on results obtained by either finite difference time domain simulations or measurements delivered by test compliance dosimetry systems Applications include among others the detailed dosimetric analysis of the exposure of the brain during cell phone use improved design of exposure setups for human studies or medical diagnostic and therapeutic devices using electromagnetic fields or ultrasound
- ItemThe Promise of Mobile Technologies for the Health Care System in the Developing World: A Systematic Review.(0000-00-00) Karageorgos, Grigorios; Andreadis, Ioannis; Psychas, Konstantinos; Mourkousis, George; Kiourti, Asimina; Lazzi, Gianluca; Nikita, Konstantina SEvolution of mobile technologies and their rapid penetration to people s daily lives especially in the developing countries have highlighted mobile health or m health as a promising solution to improve health outcomes Several studies have been conducted that characterize the impact of m health solutions in resource limited settings and assess their potential to improve health care The aim of the present paper is twofold i present an overview of the background and significance of m health and ii summarize and discuss the existing evidence for the effectiveness of m health in the developing world A systematic search in the literature was performed in Pubmed Scopus as well as reference lists and a broad sample of 98 relevant articles was identified which were then categorized into five wider m health categories Although statistically significant conclusions cannot be drawn since the majority of studies relied on small scale trials and limited assessment of long term effects this paper provides a systematic and extensive analysis of the advantages disadvantages and challenges of m health in developing countries in an attempt to determine future research directions of m health interventions
- ItemReal-time collaborative environment for radiation treatment planning virtual simulation.(2003-01-24) Ntasis, Efthymios; Maniatis, Theofanis A; Nikita, Konstantina SA virtual simulation VS system is a software system that enables the delineation of anatomical structures and the placement of irradiation fields for the purpose of radiation treatment planning making use of patient s tomographic data instead of the real patient Since patient s tomographic data can be communicated between distinct radiotherapy departments collaborative work on VS connecting remote health care professionals becomes feasible In this paper an environment enabling real time collaboration on VS is presented The environment architecture is based on both offline and online communication of data under a secure framework and can be directly integrated into the infrastructure of a radiotherapy department The online collaboration relies on the simultaneous execution of all actions at both collaborating sites and prerequisites the offline communication of the data set on which the collaboration will be performed Analytical description of the custom made layered service which supports the offline communication is given along with a detailed presentation of the secure management of messages which enables the real time collaboration The technical evaluation of the environment highlights the effectiveness of the proposed methodology since real time secure collaboration on VS is achieved
- ItemSecure environment for real-time tele-collaboration on virtual simulation of radiation treatment planning.(2003-02-18) Ntasis, Efthymios; Maniatis, Theofanis A; Nikita, Konstantina SA secure framework is described for real time tele collaboration on Virtual Simulation procedure of Radiation Treatment Planning An integrated approach is followed clustering the security issues faced by the system into organizational issues security issues over the LAN and security issues over the LAN to LAN connection The design and the implementation of the security services are performed according to the identified security requirements along with the need for real time communication between the collaborating health care professionals A detailed description of the implementation is given presenting a solution which can directly be tailored to other tele collaboration services in the field of health care The pilot study of the proposed security components proves the feasibility of the secure environment and the consistency with the high performance demands of the application
- ItemSMARTDIAB: a communication and information technology approach for the intelligent monitoring, management and follow-up of type 1 diabetes patients.(2010-07-27) Mougiakakou, Stavroula G; Bartsocas, Christos S; Bozas, Evangelos; Chaniotakis, Nikos; Iliopoulou, Dimitra; Kouris, Ioannis; Pavlopoulos, Sotiris; Prountzou, Aikaterini; Skevofilakas, Marios; Tsoukalis, Alexandre; Varotsis, Kostas; Vazeou, Andrianni; Zarkogianni, Konstantia; Nikita, Konstantina SSMARTDIAB is a platform designed to support the monitoring management and treatment of patients with type 1 diabetes mellitus T1DM by combining state of the art approaches in the fields of database DB technologies communications simulation algorithms and data mining SMARTDIAB consists mainly of two units 1 the patient unit PU and 2 the patient management unit PMU which communicate with each other for data exchange The PMU can be accessed by the PU through the internet using devices such as PCs laptops with direct internet access or mobile phones via a Wi Fi General Packet Radio Service access network The PU consists of an insulin pump for subcutaneous insulin infusion to the patient and a continuous glucose measurement system The aforementioned devices running a user friendly application gather patient s related information and transmit it to the PMU The PMU consists of a diabetes data management system DDMS a decision support system DSS that provides risk assessment for long term diabetes complications and an insulin infusion advisory system IIAS which reside on a Web server The DDMS can be accessed from both medical personnel and patients with appropriate security access rights and front end interfaces The DDMS apart from being used for data storage retrieval provides also advanced tools for the intelligent processing of the patient s data supporting the physician in decision making regarding the patient s treatment The IIAS is used to close the loop between the insulin pump and the continuous glucose monitoring system by providing the pump with the appropriate insulin infusion rate in order to keep the patient s glucose levels within predefined limits The pilot version of the SMARTDIAB has already been implemented while the platform s evaluation in clinical environment is being in progress
- ItemTelematics enabled virtual simulation system for radiation treatment planning.(2005-11-09) Ntasis, Efthymios; Gletsos, Miltos; Mouravliansky, Nikos A; Zacharaki, Evangelia I; Vasios, Christos E; Golemati, Spyretta; Maniatis, Theofanis A; Nikita, Konstantina SIn this paper GALENOS a Telematics Enabled Virtual Simulation System for Radiation Treatment Planning RTP is described The design architecture of GALENOS is in accordance with the dual aim of virtual simulation of RTP i e to allow a delineation of target volume and critical organs and b placement of irradiation fields An important feature of GALENOS is the possibility for on line tele collaboration between health care professionals under a secure framework The advantages of GALENOS include elimination of patient transfers between departments and health care institutions as well as availability of patient data at sites different than those of his her physical presence