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Biomedical subjects

D L Maloney

Publications and source records attributed to D L Maloney.

8 recordsLinked to original sources
PubMed1993

Mechanisms for exchange of image data to support distant medical consultation.

The VA has developed an integrated infrastructure to support the exchange of medical data, including images and text report data, between medical centers. This capability is expected to support teleconsulting and meet a variety of existing medical staffing and consultation needs. Consultation from distant locations requires at least the same complete integrated patient record available to onsite physicians. Several mechanisms are being explored to support distant medical consultation. Multimedia extensions to the VA's electronic mail system have been developed to allow images and other data objects to be included in electronic mail messages. Another approach that has been prototyped is to extend existing local imaging networks to produce more widely distributed imaging systems. These approaches will be described and discussed.

Computer Communication Networks↗
PubMed1992

Exchange of Veterans Affairs medical data using national and local networks.

Remote data exchange is extremely useful to a number of medical applications. It requires an infrastructure including systems, network and software tools. With such an infrastructure, existing local applications can be extended to serve national needs. There are many approaches to providing remote data exchange. Selection of an approach for an application requires balancing of various factors, including the need for rapid interactive access to data and ad hoc queries, the adequacy of access to predefined data sets, the need for an integrated view of the data, the ability to provide adequate security protection, the amount of data required, and the time frame in which data is required. The applications described here demonstrate new ways that the VA is reaping benefits from its infrastructure and its compatible integrated hospital information systems located at its facilities. The needs that have been met are also needs of private hospitals. However, in many cases the infrastructure to allow data exchange is not present. The VA's experiences may serve to establish the benefits that can be obtained by all hospitals.

CD-ROM↗
PubMed1992

An integrated multidepartmental hospital imaging system: usage of data across specialties.

Development of automated medical information systems requires knowledge about the utilization of the system; both for design and as feedback during the development process. One of the significant advantages of computer systems is that they can provide an automatic log of system utilization. This paper reports the first study of utilization data collected automatically in an integrated image environment. System monitoring indicates that images are routinely used in clinical care and clinical conferences. Selected images are shown repeatedly for teaching, demonstration, and reference at locations throughout the hospital. Images are viewed both by the collecting service when producing procedure reports and consultations, as well as by the treating physicians from other hospital services. Medical departments have developed image collection policies to meet their internal needs and the needs of treating physicians.

Hospital Information Systems↗
PubMed1992

VA's Integrated Imaging System on three platforms.

The DHCP Integrated Imaging System provides users with integrated patient data including text, image and graphics data. This system has been transferred from its original two screen DOS-based MUMPS platform to an X window workstation and a Microsoft Windows-based workstation. There are differences between these various platforms that impact on software design and on software development strategy. Data structures and conventions were used to isolate hardware, operating system, imaging software, and user-interface differences between platforms in the implementation of functionality for text and image display and interaction. The use of an object-oriented approach greatly increased system portability.

Computer Graphics↗
PubMed1991

Integrating medical images into hospital information systems.

The effective delivery of health care has become increasingly dependent on a wide range of medical data that includes a variety of images. Manual and computer-based medical records ordinarily do not contain image data, leaving the physician to deal with a fragmented patient record widely scattered throughout the hospital. The Department of Veterans Affairs is currently installing a prototype hospital information system workstation network to demonstrate the feasibility of providing image management and communications functionality as an integral part of an existing hospital information system. The core of this system is a data base management system adapted to handle images as a new data type. A general model for this network-based integration is discussed and various alternative architectures are examined.

Database Management Systems↗
PubMed1991

Providing an integrated clinical data view in a hospital information system that manages multimedia data.

The VA's hospital information system, the Decentralized Hospital Computer Program (DHCP), is an integrated system based on a powerful set of software tools with shared data accessible from any of its application modules. It includes many functionally specific application subsystems such as laboratory, pharmacy, radiology, and dietetics. Physicians need applications that cross these application boundaries to provide useful and convenient patient data. One of these multi-specialty applications, the DHCP Imaging System, integrates multimedia data to provide clinicians with comprehensive patient-oriented information. User requirements for cross-disciplinary image access can be studied to define needs for similar text data access. Integration approaches must be evaluated both for their ability to deliver patient-oriented text data rapidly and their ability to integrate multimedia data objects. Several potential integration approaches are described as they relate to the DHCP Imaging System.

Computer Communication Networks↗