The Effect Of Digital Unsharp Masking On The Detectability Of Interstitial Infiltrates And Pneumothoraces

Heber MacMahon; Carl Vyborny; Victoria Sabeti; Charles Metz; Kunio Doi

doi:10.1117/12.949500

19 September 1985 The Effect Of Digital Unsharp Masking On The Detectability Of Interstitial Infiltrates And Pneumothoraces

Heber MacMahon, Carl Vyborny, Victoria Sabeti, Charles Metz, Kunio Doi

Author Affiliations +

Proceedings Volume 0555, Medical Imaging and Instrumentation '85; (1985) https://doi.org/10.1117/12.949500
Event: Medical Imaging and Instrumentation '85, 1985, Boston, United States

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.

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Heber MacMahon, Carl Vyborny, Victoria Sabeti, Charles Metz, and Kunio Doi "The Effect Of Digital Unsharp Masking On The Detectability Of Interstitial Infiltrates And Pneumothoraces", Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); https://doi.org/10.1117/12.949500

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