@article{oai:mdu.repo.nii.ac.jp:00000786, author = {内田, 啓一 and 滝澤, 正臣 and 人見, 昌明 and 深澤, 常克 and 和田, ゆかり and 酒徳, 明彦 and 長内, 剛 and 和田, 卓郎 and 古谷, 真澄 and 松山, 英基 and 井上, 雅央 and 平岩, 孝英 and 笠原, 悦男 and 安田, 英一}, issue = {1}, journal = {松本歯学}, month = {Apr}, note = {application/pdf, Electronic image-reading and storing of radiographs obtained in the field of stomatology is a goal in dental radiology. Using a popular-type image scanner with an 8-bit intensity level, original dental radiographs and images on a CRT monitor have been compared and evaluated visually. To make this evaluating method more concrete, the optimal conditions for image scanning were obtained, then, using actual images on apical periodontitis and the receiver operating characteristics (ROC) analysis, more objective evaluation of the original radiographs and CRT images was attempted. The dental radiographs were converted to electronic signals, and images on CRT were evaluated by the ROC analysis. The evaluations were similar to those obtained with the dental radiographs. In the examination of apical periodontitis, image-reading and diagnosis on CRT is feasible. It appears to be important for the observer to have sufficient priorunderstanding of the characteristics of the scanner and that the radiographic imaging be performed with an adequate X-ray dose.}, pages = {24--28}, title = {歯科用X線フィルムの電子保管のための画像評価 第2報 根尖病単におけるデンタルX線フィルムとCRT画像との画像評価}, volume = {23}, year = {1997} }