This study developed and tested a series of protocols for computer- assisted image-enhancement of bite-wing radiographs to improve consistency of diagnosis of alveolar bone loss. Video images of radiographs were digitized and manipulated by edge-enhancement and contrast-enhancement filters. Bone loss was measured from the CE junction to the alveolar crest, in mm, at 20x magnification. Replicate measurements by the examiners showed the standard deviation of the measurement error to be approximately 0.3 - 0.4 mm for both intra- ad inter-examiner comparisons. However, this was not substantially better than could be achieved with unenhanced, digitized images. The latter technique was also considerably faster.

Agency
National Institute of Health (NIH)
Institute
National Institute of Dental & Craniofacial Research (NIDCR)
Type
Intramural Research (Z01)
Project #
1Z01DE000490-02
Application #
3896767
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
1989
Total Cost
Indirect Cost
Name
Dental & Craniofacial Research
Department
Type
DUNS #
City
State
Country
United States
Zip Code