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Radiology, Vol 169, 23-27, Copyright © 1988 by Radiological Society of North America

ARTICLES

Improved pulmonary nodule detection with scanning equalization radiography

JC Wandtke, DB Plewes and JA McFaul
Department of Diagnostic Radiology, University of Rochester Medical Center, NY 14642.

The potential for improved pulmonary nodule detection with scanning equalization radiography (SER) was evaluated by means of observer performance testing during the interpretation of posteroanterior conventional radiographs and SER images of an anthropomorphic chest phantom with simulated nodules. A test set of 200 conventional and 200 SER radiographs of phantoms containing either one nodule or none was interpreted by four radiologists attempting to detect a nodule and indicate a confidence value. Their ability to detect nodules positioned over the lung was slightly improved with SER compared with conventional radiography (sensitivity, .56 vs .70); for nodules over the mediastinum or diaphragmatic areas, it was much improved (sensitivity, .29 vs .64). The results were also analyzed with receiver-operating characteristic methods, which revealed a significant improvement in lesion detect- ability over the thicker body parts with SER images. The capability of equalized chest radiographs to provide improved lesion detectability suggests that SER may set a new standard for film-based chest radiography and have a large clinical application.


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H. P. McAdams, E. Samei, J. Dobbins III, G. D. Tourassi, and C. E. Ravin
Recent Advances in Chest Radiography
Radiology, December 1, 2006; 241(3): 663 - 683.
[Abstract] [Full Text] [PDF]


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