アブストラクト（28巻1号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Quantitative analysis of bone structure using Star volume analysis.
Subtitle　： Selective Proceedings of 34th General Meeting of Kanagawa Odontological Society, 1999
Authors　： Suguru Wakabayashi, Shirou Kiyohara, Isamu Kashima
Authors（kana）　：
Organization　： Department of Oral and Maxillofacial Radiology, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 28
Number　： 1
Page　： 71-73
Year/Month　： 2000 / 3
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] Using a resected human femoral head, a new diagnostic parameter of osteoporosis obtained by Star volume analysis was comparatively investigated against the conventional parameter, viz. bone mineral density (BMD) for differences in the discernability of structural change. By removing the cancellous bone in the Ward's triangle area of the femoral neck, the structural change of trabecular bone was simulated. The simulated structural change was binarized as a change of skeletal pattern by combination of computed radiography (CR) and morphological filter. The binarized skeletal pattern was quantified as skeletal pixel % (SkP) and skeletal star volume (Vt) using star volume analysis. Also SkP and Vt were compared with BMD as regard to the discernability of the structural change. As the result, BMD measured the structural change at a fluctuation rate of about 21%. On the other hand, SkP showed about 23%, while Vt measured the structural change at about 41%. These results suggest that the SkP and Vt obtained by the CR, morphological filter, and star volume analysis could detect structuring changes at higher sensitivities than BMD measurements and be useful as a structuring parameter.
Practice　： Dentistry
Keywords　： Bone mineral density, Mathematical morphology, Computed radiography, Star volume analysis