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Proceedings Paper

Multimodality cardiac image review station using dynamic decompression of JPEG images
Author(s): Laurence A. Spero; Bennett R. Groshong; Brian P. Harrawood; Thomas M. Bashore; Jack T. Cusma
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Paper Abstract

A cardiology review station for clinical use has been developed which can decompress, zoom, and display full resolution JPEG-encoded cardiac angiograms and echocardiograms in real- time (30 frames/second). The review station is installed in a network which includes a digital image archival system throughout Duke University Medical Center. The review station consists of a DEC 3000/600 AXP workstation with a DEC J300 sight and sound multimedia board. The J300 is used to decompress up to 45 true color JPEG-encoded frames/sec. at normal (512 X 512) resolution and 30 frames/sec. at 1.5 X zoom. Digitally acquired 512 X 512 X 8 bit monochrome angiograms as well as 600 X 430 X 8 bit color and monochrome echocardiograms are transferred to the workstation where they are JPEG-encoded in real time using the J300 board. A compression factor of approximately 15:1 is being used. A graphical user interface (GUI) developed using OSF/Motif 1.2 enables a clinical user to simultaneously display and control several image sequences. A sequence can be retrieved in under three seconds and displayed dynamically in forward or reverse directions with instantaneous speed control. Utilizing a commercial relational database (Sybase), the GUI organizes image sequences for a patient by image modality, location, time, and view. A schematic representation of cardiac anatomy allows a user to view specific angiographic image sequences by selecting appropriate objects in the anatomic diagram.

Paper Details

Date Published: 27 April 1995
PDF: 8 pages
Proc. SPIE 2431, Medical Imaging 1995: Image Display, (27 April 1995); doi: 10.1117/12.207635
Show Author Affiliations
Laurence A. Spero, Duke Univ. Medical Ctr. (United States)
Bennett R. Groshong, Duke Univ. Medical Ctr. (United States)
Brian P. Harrawood, Duke Univ. Medical Ctr. (United States)
Thomas M. Bashore, Duke Univ. Medical Ctr. (United States)
Jack T. Cusma, Duke Univ. Medical Ctr. (United States)

Published in SPIE Proceedings Vol. 2431:
Medical Imaging 1995: Image Display
Yongmin Kim, Editor(s)

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