Abstract

Computerized subtraction radiography is a potentially useful tool for assessing change in alveolar crestal bone status with greater accuracy than traditional direct comparison radiographs. Its limitation is that it requires reproducible geometry for radiograph series and if this requirement is not met the resulting subtraction image may be uninterpretable. An objective measure of interpretability will serve to enhance the confidence a researcher or clinician has in interpreting a subtraction image. It will also serve as means for laboratories to compare results. Because the texture patterns of subtraction images are influenced by the angle difference between radiographs, texture analysis of subtraction image may provide an objective measure of its interpretability. This study will evaluate texture analysis of a subtraction image as a predictor of the probability that a crestal site will be correctly interpreted through subtraction radiography. It will also evaluate the influence that radiographic quality may have on texture analysis as a predictor of correct interpretation.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Dental & Craniofacial Research (NIDCR)
Type
Research Project (R01)
Project #
5R01DE008544-03
Application #
3222314
Study Section
Oral Biology and Medicine Subcommittee 1 (OBM)
Project Start
1988-05-01
Project End
1991-04-30
Budget Start
1990-05-01
Budget End
1991-04-30
Support Year
3
Fiscal Year
1990
Total Cost
Indirect Cost

  Institution

Name
State University of New York at Buffalo
Department
Type
Schools of Dentistry
DUNS #
038633251
City
Buffalo
State
NY
Country
United States
Zip Code
14260

  Publications

Hausmann, E; Allen, K (1997) Reproducibility of bone height measurements made on serial radiographs. J Periodontol 68:839-41
Hausmann, E; Kutlubay, M E; Odrobina, D et al. (1995) Studies on the angular reproducibility of positioning patients adjacent to an x-ray tube. 2. A new electronically guided, force-sensitive sensor-based alignment system. J Periodontal Res 30:294-7
Allen, K M; Hausmann, E (1995) Model fit and measurement outcome in attachment measurements: a simulation study. J Periodontal Res 30:15-22
Katsarsky, J W; Levine, M S; Allen, K M et al. (1994) Detection of experimentally induced lesions in subtraction images of cancellous alveolar bone. Oral Surg Oral Med Oral Pathol 77:674-7
Carpio, L C; Hausmann, E; Dunford, R G et al. (1994) Evaluation of a simple modified radiographic alignment system for routine use. J Periodontol 65:62-7
Hausmann, E; Allen, K; Norderyd, J et al. (1994) Studies on the relationship between changes in radiographic bone height and probing attachment. J Clin Periodontol 21:128-32
Allen, K M; Hausmann, E; Kutlubay, M E et al. (1994) Studies of the angular reproducibility of positioning patients adjacent to an x-ray tube: 1. Stent-rod based and extra-oral systems. J Periodontal Res 29:174-8
Davis, M; Allen, K M; Hausmann, E (1994) Effects of small angle discrepancies on interpretations of subtraction images. Oral Surg Oral Med Oral Pathol 78:397-400
Samarabandu, J; Allen, K M; Hausmann, E et al. (1994) Algorithm for the automated alignment of radiographs for image subtraction. Oral Surg Oral Med Oral Pathol 77:75-9
Allen, K; Emrich, L; Piedmonte, M et al. (1992) Relationship of texture measurements to the prediction of correct evaluations in subtraction radiography. J Periodontal Res 27:197-206

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