パノラマエックス線画像上の下顎骨下縁皮質骨内面の線状の骨吸収像を用いた骨粗鬆症診断支援システムの再現性と診断精度

• 中元 崇

  広島大学病院歯科放射線科

• 田口 明

  松本歯科大学歯科放射線学講座

• 浅野 晃

  広島大学大学院工学研究院情報部門

• Zaman Mahmud UZ

  広島大学大学院医歯薬学総合研究科

• 谷本 啓二

  広島大学大学院医歯薬学総合研究科

書誌事項

タイトル別名

• Reproducibility and Diagnostic Accuracy of a Computer-aided Diagnosis System of Osteoporosis for Detecting Linearly Eroded Endosteal Margin of the Mandible Lower Border on Panoramic Radiographs

抄録

Objective: We have developed a computer-aided diagnosis system of osteoporosis that is used for detecting linearly eroded endosteal margin of the mandible lower border on panoramic radiographs. This newly developed system had sufficient reproducibility and diagnostic accuracy to screen for low bone mineral density (BMD) patients when it was used by two developers. However, the reproducibility and diagnostic accuracy were not evaluated when the system was used by dental practitioners, who would be considered the main users. The aim of this study was to evaluate the reproducibility and diagnostic accuracy when the system was used by dental practitioners.<br>Materials and methods: Fourteen dental practitioners evaluated panoramic radiographs of 100 postmenopausal women using the system. All of the women had completed BMD assessments of the lumbar spine. Intra- and inter-observer agreements were analyzed with kappa statistics. Based on the result of the system, the diagnostic efficacy (sensitivity, specificity, predictive values and accuracy) was analyzed by comparing the two groups classified by the system (women with normal and eroded lower border of the mandible) with those classified by BMD (women with normal and low BMD).<br>Results: Intra- and inter-observer agreements were almost perfect (κ > 0.81). The mean sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 80%, 65%, 43%, 90%, and 69%, respectively.<br>Conclusion: This system had good reproducibility and accuracy. We conclude that this system can be used in clinical dental practice to identify postmenopausal women who have undetected low BMD and should undergo further testing with bone densitometry.

収録刊行物

• 歯科放射線

  歯科放射線 51 (4), 33-38, 2011

  特定非営利活動法人 日本歯科放射線学会

キーワード

• 画像診断
• パノラマエックス線撮影
• 骨粗鬆症

詳細情報

• CRID: 1390001204962602240
• NII論文ID: 130004503215
• NII論文ID: 10030283173
• NII書誌ID: AN00101479
• DOI: 10.11242/dentalradiology.51.33
• ISSN: 21856311
• ISSN: 03899705
• Web Site: https://search.jamas.or.jp/link/ui/2012204182
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可