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At least 1,081 records · Page 60Linked to original sources
PubMed1998

Vital signs services for secure telemedicine applications.

Telemedicine using teleconference provides only a part of the picture. The remote patient's electronic medical record and vital signs may often be essential for proper diagnosis and treatment. While there are commercial solutions for telemonitoring, they do not address issues such as security and interoperability leveraging the growing public communications infrastructure. On the other hand there are performance considerations due to the quality of service over available communications media that can hinder real-time operation. The objective of this research effort is to develop secure tele-monitoring facilities that enable healthcare providers to collaborate over public communication networks; to securely convey their patient's vital signs to a remote specialist; and to enable "near real-time" examination of those vital sign data. It is our belief that such applications can help overcome barriers to quality healthcare in the scattered populations of rural areas enabling telemedicine to be a part of the practice of medicine. The authors, who are developing secure telemedicine applications, describe their approach in developing secure vital signs services.

Blood Pressure↗
PubMed2005

Secure authentication system that generates seed from biometric information.

As biometric recognition techniques are gradually improved, the stability of biometric authentication systems are enhanced. Although bioinformation has properties that make it resistant to fraud, biometric authentication systems are not immune to hacking. We show a secure biometric authentication system (1) to guarantee the integrity of biometric information by mixing data by use of a biometric key and (2) to raise recognition rates by use of bimodal biometrics.

Algorithms↗
PubMedDate not supplied

A generic methodology for health care data security.

The aim is to outline the framework of a generic methodology for specifying countermeasures in health care environments. The method is specifically aimed at the enhancement of security in existing health care systems, and a key element is the use of predetermined 'profiles' by which these may be classified. Example scenarios are presented to illustrate how the concept could be applied in practice. The paper is based upon work that was initially carried out as part of the Commission of European Communities SEISMED (Secure Environment for Information Systems in MEDicine) project, the aim of which is to provide security recommendations for European health care establishments (HCEs).

Computer Security↗
PubMed2004

Security middleware infrastructure for DICOM images in health information systems.

In health care, it is mandatory to maintain the privacy and confidentiality of medical data. To achieve this, a fine-grained access control and an access log for accessing medical images are two important aspects that need to be considered in health care systems. Fine-grained access control provides access to medical data only to authorized persons based on priority, location, and content. A log captures each attempt to access medical data. This article describes an overall middleware infrastructure required for secure access to Digital Imaging and Communication in Medicine (DICOM) images, with an emphasis on access control and log maintenance. We introduce a hybrid access control model that combines the properties of two existing models. A trust relationship between hospitals is used to make the hybrid access control model scalable across hospitals. We also discuss events that have to be logged and where the log has to be maintained. A prototype of security middleware infrastructure is implemented.

Access to Information↗
PubMed2006

Fingerprint multicast in secure video streaming.

Digital fingerprinting is an emerging technology to protect multimedia content from illegal redistribution, where each distributed copy is labeled with unique identification information. In video streaming, huge amount of data have to be transmitted to a large number of users under stringent latency constraints, so the bandwidth-efficient distribution of uniquely fingerprinted copies is crucial. This paper investigates the secure multicast of anticollusion fingerprinted video in streaming applications and analyzes their performance. We first propose a general fingerprint multicast scheme that can be used with most spread spectrum embedding-based multimedia fingerprinting systems. To further improve the bandwidth efficiency, we explore the special structure of the fingerprint design and propose a joint fingerprint design and distribution scheme. From our simulations, the two proposed schemes can reduce the bandwidth requirement by 48% to 87%, depending on the number of users, the characteristics of video sequences, and the network and computation constraints. We also show that under the constraint that all colluders have the same probability of detection, the embedded fingerprints in the two schemes have approximately the same collusion resistance. Finally, we propose a fingerprint drift compensation scheme to improve the quality of the reconstructed sequences at the decoder's side without introducing extra communication overhead.

Algorithms↗
PubMed1999

Healthconnect: clinical grade patient-physician communication.

A critical mass of Internet users is leading to a wide diffusion of electronic communications within medical practice. Unless implemented with substantial forethought, these new technological linkages could disturb delicate balances in the doctor-patient relationship, threaten the privacy of medical information, widen social disparity in health outcomes, and even function as barriers to access. The American Medical Informatics Association (AMIA) recently published recommendations to guide computer-based communications between clinicians and patients. This paper describes the motivations for and the design of HealthConnect, a web-based patient-doctor communications tool currently in use at Children's Hospital, Boston. Structural and process-oriented features of HealthConnect, as they relate to promotion of adherence with the Guidelines, are discussed.

Communication↗
PubMed1999

Experiences with a new security standard for healthcare information systems.

This article describes the results of the implementation and demonstration of the Standard CEN ENV 12924 (Security Categorisation and Protection of Health Care Information Systems), that was performed as part of the ISIS/MEDSEC project of the EU. The categorisation scheme given in the standard was followed through for almost all information systems or sub-systems in the Leiden University Medical Centre. The status of the security measures was evaluated for ten systems; further implementation plans were then drawn up for these systems, and partly effectuated. Findings are reported, both on the present security level, and on the applicability of the standard (which in general was found to be very positive). In the course of this work, use was made of a database support tool, developed in an earlier EU project (SEISMED).

Computer Security↗
PubMed2000

[Internet communication in radiology].

UNLABELLED: E-mail is an Internet service that can be used for sending messages and binary files between individuals as well as for participating in discussion groups. For sending and receiving these types of messages, the users must use either a dedicated e-mail client or one of the several mailing facilities of the World Wide Web. The news-groups enable like-minded people to discuss subjects on a group-wide basis, but access is generally not limited, and the participants cannot be selected. CONCLUSION: The objective of this paper is to give radiologists an introduction to using e-mail, mailing lists and news-groups, the three most important communication services of the Internet. The function of these services is explained, and the advantages of implementing them in a radiology practice are discussed. Potential problems and concerns including security matters are highlighted, and ways in which they can be resolved are suggested.

Communication↗
PubMed2001

Implementing HIPAA: a manager's blueprint.

The Health Insurance Portability and Accountability Act of 1996 will prove to be one of the most far-reaching health care reform laws of our generation. Virtually every sector of health care will need to reengineer its systems to protect its patient information infrastructure, and combat waste and abuse. The benefits will justify the efforts and costs if the result is a system in which patient medical information is protected, and information will begin to flow between payers and providers in a seamless, standardized and secure fashion. This article studies various strategies and approaches that management may use to maximize compliance efforts.

Computer Security↗
PubMed1996

Preserving confidentiality and security of patient health care information.

The lack of a uniform legal or regulatory scheme that applies to the protection of privacy in health care information and marketplace pressures placed on health care providers for access to patient data require physicians, hospitals, and other health care providers to establish and maintain security measures to protect against unauthorized access to patient records and vigilantly safeguard against improper disclosure.

Computer Security↗