股関節X線写真を試料とした大腿骨近位部の骨梁計数法の開発

概要

論文の詳細を見る
In the evaluation of osteopenia, Singh's index and other methods employing a plain roentgenogram have been utilized, all of which are readily accessible without expensive equipment. We developed a new method for quantifying radiographic osteopenia using hip plain roentgenography, and we have evaluated its utility by comparing it with dual-energy x-ray absorptiometry(DXA). The subjects were 231 women aged 40-91 years who had undergone plain hip joint roentgenography and hip DXA. X-ray films showing femoral neck fracture or deformity or external rotation of the hip joint were not included in this study. Osteopenia was quantified by counting the number of principal compressive trabeculae in the left femoral neck using a magnifying glass. Thickness and photographic density of the cortex in the femoral head were used as references when selecting the trabeculae, i.e., trabeculae thinner or fainter than the cortex were not counted. The results of trabecular counting were significantly correlated with bone mineral content and density by hip DXA. Among the parameters of hip DXA, femoral neck BMD showed the highest correlation with trabecular number, and the correlation was higher when counting in the larger region of the femoral neck. The results suggest the potential utility of our method for estimating hip BMD.
公益社団法人日本放射線技術学会の論文
2001-10-20