Intelligent prefetch strategies for historical images in a large PACS

Dennis L. Wilson; Donald V. Smith M.D.; Brian Rice

doi:10.1117/12.174294

15 May 1994 Intelligent prefetch strategies for historical images in a large PACS

Dennis L. Wilson, Donald V. Smith M.D., Brian Rice

Proceedings Volume 2165, Medical Imaging 1994: PACS: Design and Evaluation; (1994) https://doi.org/10.1117/12.174294
Event: Medical Imaging 1994, 1994, Newport Beach, CA, United States

Abstract

One of the primary advantages of a Picture Archive and Communications System is the availability of historical images. The historical images may be prefetched from the archive the night before a patient visit based on a pull list or may be prefetched after the patient has registered for a radiological exam while the exam is being performed. A set of rules has been devised for prefetch of selected images. Further, a Madigan Army Medical Center statistics of the number of images that are prefetched and used with a new exam are examined. Madigan has more than 300,000 historical images on line for an aid in the diagnosis of new exams. The percent of patients with historical exams is examined as a function of the age of the historical exam. The result of the study is a sample of the number of images that will be prefetched and the distribution of the images over image types and time for a large set of exams.

Citation Download Citation

Dennis L. Wilson, Donald V. Smith M.D., and Brian Rice "Intelligent prefetch strategies for historical images in a large PACS", Proc. SPIE 2165, Medical Imaging 1994: PACS: Design and Evaluation, (15 May 1994); https://doi.org/10.1117/12.174294

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