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Proceedings Paper

Multiresolution storage in a PACS archive
Author(s): Fred M. Behlen; Kenneth R. Hoffmann; Heber MacMahon; Troy R. Folkner
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Paper Abstract

Many retrievals of images from a PACS archive do not require the full spatial resolution at which the images were originally acquired. Savings in retrieval times could be realized if images were retrieved at the lower resolution required for each display need. A PACS archive was constructed wherein images are stored and may be retrieved at lower than the originally-acquired resolution. Incoming images from the modality devices are minified by successive factors of two, down to 128 X 128. A DICOM extended private attribute was defined which enabled the reduced resolution images to be retrieved with a modified DICOM move requests. The reduced resolution images can be received by a standard DICOM workstation without the need for special workstation software. Multi-resolution storage requires approximately 30 percent more space. This additional media cost is deemed acceptable for this archive, in which data are stored on low cost magnetic tape.

Paper Details

Date Published: 22 May 1997
PDF: 8 pages
Proc. SPIE 3035, Medical Imaging 1997: PACS Design and Evaluation: Engineering and Clinical Issues, (22 May 1997); doi: 10.1117/12.274601
Show Author Affiliations
Fred M. Behlen, Univ. of Chicago (United States)
Kenneth R. Hoffmann, Univ. of Chicago (United States)
Heber MacMahon, Univ. of Chicago (United States)
Troy R. Folkner, Lockheed Martin Corp. (United States)

Published in SPIE Proceedings Vol. 3035:
Medical Imaging 1997: PACS Design and Evaluation: Engineering and Clinical Issues
Steven C. Horii M.D.; G. James Blaine, Editor(s)

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