Browsing by Author "Nikiforidis, G"
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- ItemClinical-oriented collaboration over the Web during interventional radiology procedures.(2006-08-31) Gortzis, Lefteris G; Karnabatidis, D; Siablis, D; Nikiforidis, GMultidisciplinary 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 developed a Web based cost effective structure able to support real time mentoring image manipulation and education services beyond the boundaries of the single institution and potentially allow sub specialists to participate in opinion and decision making in more complex cases Supported services based on a Motion Joint Photographic Experts Group MJPEG coder decoder CODEC can be easily accessible by authorized collaborators within a user friendly interface by using a typical Web browser Ten interventional radiologists two vascular surgeons and two medical physicists participated in 33 fully collaborative cases during a 13 month period from January 2004 to February 2005 In addition fifteen 90 minute open seminars and finally 75 expert s module activations and 255 learner s module activations were performed during the evaluation period Collaborative procedures are able to enhance outcomes performance especially in more complex cases where the simultaneous presence of a remote expert interventionist and a medical physicist or a surgeon is required Further research is needed to promote integration of additional data sources and services
- ItemOptimizing the interventional cardiology facility: services integration in routine workflow.(2007-05-11) Gortzis, Lefteris; Kalogeropoulos, A; Alexopoulos, D; Nikiforidis, GIntegration 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
- ItemPortable biomedical devices: a critical issue during telecare services design.(2008-07-08) Gortzis, L G; Bakettas, I; Makropoulos, C; Graschew, G; Nikiforidis, GThe 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
- ItemTracing and cataloguing knowledge in an e-health cardiology environment.(2008-03-10) Gortzis, L G; Nikiforidis, GIn an e health cardiology environment the current knowledge engineering systems can support two knowledge processes the knowledge tracing and the knowledge cataloguing We have developed an n tier system capable of supporting these processes by enabling human collaboration in each phase along with a prototype scalable knowledge engineering tactic A knowledge graph is used as a dynamic information structure Biosignal data values of HR QRS and ST variables from 86 patients were used two general practitioners defined and updated the patients clinical management protocols and feedback was inserted retrospectively Several calibration tests were also performed The system succeeded in formulating three knowledge catalogues per patient namely the patient in life the patient in time and the patient in action For each patient the clinically accepted normal limits of each variable were predicted with an accuracy of approximately 95 The patients risk levels were identified accurately and in turn the errors were reduced The data and the expert oriented feedback were also time stamped correctly and synchronized under a common time framework Knowledge processes optimization necessitates human collaboration and scalable knowledge engineering tactics Experts should be responsible for resenting or rejecting a process if it downgrades the provided healthcare quality