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Optical Engineering

Radiologic Decision Making And Physical Image Properties
Author(s): Harold L. Kundel
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Paper Abstract

The objective of this work is to relate the performance of radiologists as measured by the probability of detecting a nodular abnormality on a chest film to the properties of the nodule and its surrounding structures measured by a microdensitometer from the film. A parameter called conspicuity has been defined. It consists of measurements of the size, shape, contrast, and the edge gradient of the nodule divided by a measurement of the complexity of the surrounding structures that tend to camouflage the nodule. Conspicuity has been measured for simulated nodules and for a series of real nodules that were originally missed in clinical practice but later detected. Correlation between film reader performance and conspicuity was found.

Paper Details

Date Published: 1 August 1978
PDF: 3 pages
Opt. Eng. 17(4) 174393 doi: 10.1117/12.7972249
Published in: Optical Engineering Volume 17, Issue 4
Show Author Affiliations
Harold L. Kundel, Temple University School of Medicine (United States)

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