Studies in health technology and informatics
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The problem of defining a quality model to be used in the evaluation of the software components of a Health Care System (HCS) is addressed. The model, based on the ISO/IEC 9126 standard, has been interpreted to fit the requirements of some classes of applications representative of Health Care Systems, on the basis of the experience gained both in the field of medical Informatics and assessment of software products. The values resulting from weighing the quality characteristics according to their criticality outline a set of quality profiles that can be used both for evaluation and certification.
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Stud Health Technol Inform · Jan 1997
Clinical-HINTS: integrated intelligent ICU patient monitoring and information management system.
Clinical-HINTS (Health Intelligence System) is a horizontally integrated decision support system (DSS) designed to meet the requirements for intelligent real-time clinical information management in critical care medical environments and to lay the foundation for the development of the next generation of intelligent medical instrumentation. The system presented was developed to refine and complement the information yielded by clinical laboratory investigations, thereby benefiting the management of the intensive care unit (ICU) patient. More specifically, Clinical-HINTS was developed to provide computer-based assistance with the acquisition, organisation and display, storage and retrieval, communication and generation of real-time patient-specific clinical information in an ICU. ⋯ Current generic reasoning skills include perception and reactive cognition of patient status but exclude therapeutic action. The system monitors the patient by communicating with the available sources of data and uses generic reasoning skills to generate intelligent alarms, or HINTS, on various levels of interpretation of an observed dysfunction, even in the presence of complex disorders. The system's communication and information management capabilities are used to acquire physiological data, and to store them along with their interpretations and any interventions for the dynamic recognition of interrelated pathophysiological states or clinical events.
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Stud Health Technol Inform · Jan 1997
ReviewTeaching and assessing clinical skills using virtual reality.
The need to improve the teaching and assessing of students' procedural skills has been well 0 encounters, often with little or no supervision. Assessment of these skills has depended on rudimentary physical models, or standardized patients. The limitations of these methods also are well known. ⋯ Many variations in anatomy or other complications can be presented, and trainees can practice hundreds of times until their skills are perfected. This paper describes current activities in this area in the Dalhousie Faculty of Medicine and elsewhere. Various forms of Virtual Reality are described and their application to particular clinical areas are described.
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Stud Health Technol Inform · Jan 1997
Review Comparative StudyAssessment of trabecular structure using high resolution magnetic resonance imaging.
Although bone mineral density is one of the most important contributing factors to bone strength and risk of fracture, studies have shown that changes in bone quality and structure independent of bone mineral density, influence both bone strength and individual risk of fracture. The influence of these other factors is thought to explain at least partially the observed overlap in bone mineral measurements between patients with and without osteoporotic fractures, irrespective of measurement site or technique. Thus, several new emerging techniques have been aimed at quantifying trabecular bone structure in addition to bone density. ⋯ Quantitative measures of trabecular architecture derived from such images have been compared with those obtained from higher resolution 18 microns images, and with biomechanical properties. In vivo studies in the radius and calcaneus have been performed and differences between osteoporotic and normal subjects are distinguishable. Thus, MR imaging techniques coupled with computerized image analysis may potentially be very useful for studying osteoporosis and quantifying trabecular bone architecture and may provide information in addition to bone density.
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Stud Health Technol Inform · Jan 1997
Organising health systems for better care and performance by open information technology.
In this document the application of open information technology to assist in reforming healthcare systems of countries is being discussed. Present technologies demonstrated by HANSA in Western and Eastern Europe enable the integration of electronic patient records in existing systems, provide for flexibility and support the interoperability of different applications. However, computers and IT must not drive the required process of change. This is the responsibility of top management.