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Proceedings Paper

Preliminary Clinical Studies Using A Self Scanning Lineak Diode Array To Obtain 1024 X 1024 Digital Radiographs
Author(s): Donald Sashin; B.Simon Slasky; Ernest J. Sternglass; Klaus M. Bron; John M. Herron; William H. Kennedy; Joseph W. Boyer; Bertram R. Girdany; Raymond W. Simpson; Joseph A. Horton
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Paper Abstract

A digital radiography system using self scanning linear diode arrays is being developed for improved diagnosis at reduced radiation dose. Our technique is based on the use of solid state sensors with 1024 diodes per inch and with very high dynamic range. The slit geometry of our method results in image improvement and dose reduction by efficiently rejecting scattered x-rays in the patient. In our present configuration the images have a field of view of six inches by six inches or 6 inches by 12 inches and are digitized to 1024 x 1024 pixels with 12 bits. This digital system differs from the conventional digital radiography in that no image intensifier TV fluoroscopy chain is required. Preliminary clinical studies have demonstrated the high detail of our system at low radiation levels. In dog studies the system has clearly visualized very small coronary arteries following aortic root injection of contrast material. Even with intravenous injections some of the coronary arteries could be seen.

Paper Details

Date Published: 28 August 1984
PDF: 9 pages
Proc. SPIE 0486, Medical Imaging and Instrumentation '84, (28 August 1984); doi: 10.1117/12.943216
Show Author Affiliations
Donald Sashin, University of Pittsburgh (United States)
B.Simon Slasky, University of Pittsburgh (United States)
Ernest J. Sternglass, University of Pittsburgh (United States)
Klaus M. Bron, University of Pittsburgh (United States)
John M. Herron, University of Pittsburgh (United States)
William H. Kennedy, University of Pittsburgh (United States)
Joseph W. Boyer, University of Pittsburgh (United States)
Bertram R. Girdany, University of Pittsburgh (United States)
Raymond W. Simpson, University of Pittsburgh (United States)
Joseph A. Horton, University of Pittsburgh (United States)


Published in SPIE Proceedings Vol. 0486:
Medical Imaging and Instrumentation '84
James A. Mulvaney, Editor(s)

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