Laval-Jeantet A M, Cann C E, Roger B, Dallant P
J Comput Assist Tomogr. 1984 Dec;8(6):1164-7. doi: 10.1097/00004728-198412000-00024.
The influence of the fat content in the cancellous bone on CT densitometry was measured on the excised vertebrae from 42 elderly human subjects. Using single energy CT, the decrease of the measured mineral content was 12% for a fat content of 10% by volume at a mean mineral content of 100-110 mg/cm3. Using a dual calibration at 85 and 130 kVp with reference to K2HPO4 for mineral and to alcohol for fat, our experiment showed that the mineral content of the vertebra can be measured with an accuracy of 6% referred to the ash-weight.
在42名老年受试者切除的椎骨上测量了松质骨中脂肪含量对CT骨密度测定的影响。使用单能CT，在平均矿物质含量为100-110mg/cm³时，脂肪含量为10%（体积）时测量的矿物质含量下降了12%。使用85和130kVp的双校准，以K2HPO4作为矿物质的参考物，以酒精作为脂肪的参考物，我们的实验表明，以灰重为参考，椎骨矿物质含量的测量精度可达6%。
