Zwicker C, Langer M, Urich V, Felix R
Strahlenklinik und Poliklinik, Klinikum Rudolf Virchow, Freie Universität Berlin.
Rofo. 1993 Mar;158(3):255-9. doi: 10.1055/s-2008-1032643.
The absorption of the elements iodine, gadolinium and ytterbium in various dilutions was studied in relation to CT. Regression analysis and specific CT density measurements showed that absorption decreases from gadolinium to ytterbium and iodine. These results were confirmed by experiments using ten dogs. Boli of 0.5 molar gadolinium used for angio-CT without table movement showed the largest increase in density in the aorta and liver with an average of 190HU and 21HU respectively compared with iodine which gave 157HU and 12HU respectively. The animal experimental studies suggest that gadolinium and ytterbium are suitable contrast media for dynamic CT investigations.
研究了不同稀释度下碘、钆和镱元素的吸收与CT的关系。回归分析和特定的CT密度测量表明，从钆到镱再到碘，吸收逐渐降低。使用10只狗进行的实验证实了这些结果。用于无床移动血管CT的0.5摩尔钆团注显示，主动脉和肝脏的密度增加最大，平均分别为190HU和21HU，而碘分别为157HU和12HU。动物实验研究表明，钆和镱是动态CT检查的合适对比剂。
