A Pilot Study on Hip Bone Mineral Densities Estimation from Forearm CBCT Images

In this paper, we defined the relative cross-sectional area of forearm cortical bone and investigated its correlation with hip bone mineral density values of total femur, femoral neck, femoral trochanter, femoral inter-trochanter and femoral ward’s triangle, respectively. Based on the correlations, we established a linear transformation between the relative cross-sectional area of forearm cortical bone and each hip bone BMD. We obtained forearm images using CBCT and hip bone BMDs of total femur, femoral neck, femoral trochanter, femoral inter-trochanter and femoral ward’s triangle using dual-energy X-ray absorptiometry (DXA) for 28 subjects.