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Proceedings Paper

Improved Lung Nodule Detection With An Equalized Image
Author(s): D. B. Plewes; J. C. Wandtke
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Paper Abstract

A custom designed equalizing filter was used to test the potential for improving nodule detectability in chest radiographs. The filter was constructed to produce a radiograph so that the film densities over the lung field and mediastinum were approximately equal. Eighteen radiographs were prepared with small lesions placed over the lung field and mediastinal areas of a chest phantom and the films were read by four radiologists. The films prepared with the equalizing filter showed an increased true positive rate of 18% in the retrocardiac, retrodiaphragmatic and mediastinal areas and only a slight decrease of the true positive rate in the lung field (4%). The average false positive rate for films prepared with and without the filter were virtually identical.

Paper Details

Date Published: 18 August 1980
PDF: 7 pages
Proc. SPIE 0233, Application of Optical Instrumentation in Medicine VIII, (18 August 1980); doi: 10.1117/12.958921
Show Author Affiliations
D. B. Plewes, University of Rochester Medical Center (United States)
J. C. Wandtke, University of Rochester Medical Center (United States)


Published in SPIE Proceedings Vol. 0233:
Application of Optical Instrumentation in Medicine VIII
Joel E. Gray; William R. Hendee; Andrew G. Haus; William S. Properzio, Editor(s)

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