Bradley J G, Huang H K, Ledley R S
Radiology. 1978 Jul;128(1):103-7. doi: 10.1148/128.1.103.
Fresh cadaveric lumbar vertebrae from 28 subjects were obtained at autopsies and then analyzed by CT scans. An average CT number, calibrated against water and representing the relative x-ray attenuation coefficient of cancellous bone of each vertebra, was obtained. Calcium concentrations in milligrams per cubic centimeter for each vertebral specimen, calculated by physical methods, were plotted against the average CT numbers. The results suggest a linear relationship between the CT numbers and the calcium content of bone.
从28名受试者的新鲜尸体腰椎获取样本，并在尸检时取得，随后进行CT扫描分析。通过与水进行校准，获得了代表每个椎骨松质骨相对X射线衰减系数的平均CT值。通过物理方法计算出每个椎体标本每立方厘米的钙浓度，并将其与平均CT值进行绘图。结果表明CT值与骨钙含量之间存在线性关系。
