P B Condit | PubMed Health

PubMed1995

Requirements for cardiac interchange media and the role of recordable CD.

Over the past two years, representatives of the American College of Cardiology (ACC) have collaborated with the x-ray equipment industry through the National Electrical Manufacturers Association (NEMA) to develop a digital standard for the exchange of x-ray angiographic images. These efforts have resulted in an extension of the Digital Imaging and Communications in Medicine (DICOM) Standard and the selection of recordable CD as the medium for interchange. This report, which is based on an INCIS '94 presentation in Mainz, Germany, is focused on the results of the medium selection. Included is a discussion of the distinction between archiving and interchange of digital image data, an outline of the medium selection criteria, a mapping of recordable CD against these criteria, and a discussion of the future of this medium. Finally, this report contains information about the ongoing ACC-NEMA activities.

Cardiac Catheterization↗

PubMedDate not supplied

Comparative imaging technologies in the cardiac catheterization laboratory.

Evaluation of digital technology in the cardiac cath lab has introduced a desire to extend these technologies into electronic storage capability. Cine film is the current standard for image archiving because it meets the most important requirements of superior resolution, long-term stability, universal viewing and single-patient unit record capabilities. The major limitations of film include serial viewing (versus random access) and its incompatibility with computer techniques, such as quantitative angiography. Manufacturers and vendors have introduced several archiving alternatives that address the limitations of film. These options currently require trade offs and/or compromises in image quality, longevity, cost and numerous other requirements. Investments in alternatives should be made after comprehensive review of the expected productivity gains, anticipated media, equipment and supporting service cost improvements and prospective technological enhancements. This article has introduced a number of the issues that should be considered in comparing archiving media. As technology evolves and standards are developed, this task will become easier. In the meantime, no system to date has been able to achieve the existing advantages of film while overcoming its limitations.

Analog-Digital Conversion↗