title: Trends in trabecular and cortical bone in the radius compared with whole body calcium balance in osteoporosis.
abstract: Mean linear attenuation coefficients for trabecular bone (T) in the distal radius and total absorption coefficients (TA) in the radial mid-shafts of 22 patients with crush fracture osteoporosis were measured serially for a year by using computed tomography. After approximately 6 months, each patient was admitted to a metabolic ward for an 18-day calcium balance study. The rate of change (trend) in trabecular bone (T) in the distal radius was a better predictor of calcium balance than the trend in mid-shaft cortical bone (TA). The scatter in the regressions of the trends of T and TA on calcium balance could be accounted for by known methodological uncertainties.
mesh_terms: D015502:Absorptiometry, Photon; D001842:Bone and Bones / Q000000981:diagnostic imaging / Q000378:metabolism*; D002118:Calcium / Q000378:metabolism*; D005260:Female; D006801:Humans; D008297:Male; D010024:Osteoporosis / Q000000981:diagnostic imaging / Q000378:metabolism*; D011884:Radius / Q000000981:diagnostic imaging / Q000378:metabolism; D014057:Tomography, X-Ray Computed
chemical_list: D002118:Calcium