Definition of local density in biological calcified tissues using x-ray microtomography

This is the first report where desktop x-ray microtomography was implemented for quantitative analysis of the level of calcification in different organic material from early stage embryos to bones. A technique for the definition of local calcium density was developed. Differences in local calcium density from 0.7*109 to 11.7*109 (atoms per micrometers 3) were detected.