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Updated: Jun 8, 2026

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
Published on: January 31, 2025
A retrospective study of a calcium agent (E-Ca) using data on bone mineral density obtained by DXA method
Ryota Takeuchi1, Yoshihiro Uto, Yoshinori Nakagawa
1Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, Minamijosanjimacho-2, Tokushima, 770-8506 Japan.
Aim:
We performed a retrospective analysis of a calcium hydroxide-containing calcium agent (TACHIKAWA DENKAI CALCIUM™: E-Ca) based on data of bone mineral density obtained by dual-energy X-ray absorptiometry (DXA) to clarify the relationship between bone mineral density and E-Ca intake on an empty stomach in those who regularly use E-Ca.
Results:
We found the percentage of volunteers with their age-matched (AM) values of above 100% to be 89%, and also a moderate positive correlation between AM values and the intake period of E-Ca.
Conclusion:
Our findings demonstrate that AM values can be used as an effective indicator assessing osteogenesis by regularly administrated calcium agents which exert their effects after long-term use.
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