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Dentomaxillofacial Radiology, Vol 19, Issue 4 161-164, Copyright © 1990 by British Institute of Radiology

ARTICLES

Computerized generation of lesion models for evaluating subtraction radiography

K. M. Allen and E. Hausmann
Department of Oral Biology, State University of New York, Buffalo.

Digital subtraction radiography is a technique that has been shown to provide greater sensitivity and specificity in detecting bur-induced crestal bone change than the traditional comparison of two radiographs. It is questionable, however, to what extent these reports relate to clinical situations. A computerized method of extracting lesion areas from clinical subtraction images and imposing them on radiographs of experimental sites has been developed with the goal of producing a more relevant model for evaluating subtraction radiography. Observers were unable to distinguish between natural lesions and those produced by this method.




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Copyright © 1990 by the British Institute of Radiology.