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Diagnosis of Bone Lesions by Subtraction Radiography
Author(s) -
Rethman M.,
Ruttiman U.,
O'Neal R.,
Webber R.,
Davis A.,
Greenstein G.,
Woodyard S.
Publication year - 1985
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.1985.56.6.324
Subject(s) - subtraction , radiography , medicine , conventional radiography , diagnostic accuracy , radiology , nuclear medicine , dentistry , mathematics , arithmetic
Examiner diagnostic accuracy and response times were compared using subtraction and conventional radiography in a dog model. Osseous lesions were induced interproximally and through the mandibular buccal bone interradicularly and radicularly. Standardized preoperative and postoperative conventional radiographs of the induced lesions were compared to subtraction images of the same sites by 11 dentists. Examiners using the subtraction technique demonstrated improved diagnostic performance ( P < 0.001) and response times ( P < 0.001). Additionally, this method yielded a 30% reduction in equivocal diagnostic decisions. Data from this study suggest that subtraction radiography is a sensitive and accurate method to detect osseous lesions associated with periodontal diseases.