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Proceedings Paper

The Effect Of Digital Unsharp Masking On The Detectability Of Interstitial Infiltrates And Pneumothoraces
Author(s): Heber MacMahon; Carl Vyborny; Victoria Sabeti; Charles Metz; Kunio Doi
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Paper Abstract

A potential advantage of digital radiographic systems is their ability to enhance images by various types of processing. Digital unsharp masking is one of the simplest and potentially most useful forms of enhancement. The efficacy of unsharp masking in clinical radiologic diagnosis has not been investigated systematically, however. The effect of digital unsharp masking on the detectability of two types of subtle abnormalities, pneumothorax and interstitial infiltrate, was studied in an observer performance test. An ROC analysis of this preliminary data suggests that unsharp masking may improve diagnostic accuracy for pneumothorax. Radiologists' performance in identifying interstitial infiltrates was degraded by the image processing, however, and false positive diagnoses tended to be more frequent.

Paper Details

Date Published: 19 September 1985
PDF: 7 pages
Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); doi: 10.1117/12.949500
Show Author Affiliations
Heber MacMahon, The University of Chicago (United States)
Carl Vyborny, The University of Chicago (United States)
Victoria Sabeti, The University of Chicago (United States)
Charles Metz, The University of Chicago (United States)
Kunio Doi, The University of Chicago (United States)


Published in SPIE Proceedings Vol. 0555:
Medical Imaging and Instrumentation '85
James A. Mulvaney, Editor(s)

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