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Proceedings Paper

The Effect Of Pixel Size On The Detection Rate Of Early Pulmonary Sarcoidosis In Digital Chest Radiographic Systems
Author(s): Heber MacMahon; Carl Vyborny; Gregory Powell; Kunio Doi; Charles E. Metz
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Paper Abstract

In digital radiography the pixel size used determines the potential spatial resolution of the system. The need for spatial resolution varies depending on the subject matter imaged. In many areas, including the chest, the minimum spatial resolution requirements have not been determined. Sarcoidosis is a disease which frequently causes subtle interstitial infiltrates in the lungs. As the initial step in an investigation designed to determine the minimum pixel size required in digital chest radiographic systems, we have studied 1 mm pixel digitized images on patients with early pulmonary sarcoidosis. The results of this preliminary study suggest that neither mild interstitial pulmonary infiltrates nor other abnormalities such as pneumothoraces may be detected reliably with 1 mm pixel digital images.

Paper Details

Date Published: 28 August 1984
PDF: 7 pages
Proc. SPIE 0486, Medical Imaging and Instrumentation '84, (28 August 1984); doi: 10.1117/12.943193
Show Author Affiliations
Heber MacMahon, University of Chicago Medical Center (United States)
Carl Vyborny, University of Chicago Medical Center (United States)
Gregory Powell, University of Chicago Medical Center (United States)
Kunio Doi, University of Chicago Medical Center (United States)
Charles E. Metz, University of Chicago Medical Center (United States)

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

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