caa a22 4500 605539588 CHVBK 20210128100907.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10396-015-0617-5 doi (NATIONALLICENCE)springer-10.1007/s10396-015-0617-5 Estimation of in vivo cortical bone thickness using ultrasonic waves [Elektronische Daten] [Isao Mano, Kaoru Horii, Hiroshi Hagino, Takami Miki, Mami Matsukawa, Takahiko Otani] Purpose: To verify the measurement of cortical bone thickness at the distal radius in vivo using an ultrasonic method. Methods: The method for estimating cortical bone thickness was derived from experiments with in vitro bovine specimens. Propagation time of echo waves and propagation time of slow waves were used for the estimation. The outside diameter of cortical bone and the cortical bone thickness at the distal 5.5% site of radius were measured with the new ultrasonic bone measurement system, and the results were compared with X-ray pQCT clinical measurements. Results: There was a high positive correlation (r: 0.76) between the cortical bone thickness measured by the new ultrasonic system and the X-ray pQCT results. Conclusion: We will be able to measure not only cancellous bone density but also cortical bone thickness in vivo using ultrasonic waves (without X-ray) safely and repeatedly. The Japan Society of Ultrasonics in Medicine, 2015 Distal radius nationallicence Cortical bone thickness nationallicence Fast and slow waves nationallicence pQCT nationallicence Mano Isao Office for Research Initiatives and Development, Doshisha University, 610-0321, Kyotanabe, Kyoto, Japan aut Horii Kaoru Oyo Electric Co., Ltd., 610-0101, Joyo, Kyoto, Japan aut Hagino Hiroshi Faculty of Medicine, Tottori University, 683-0826, Yonago, Tottori, Japan aut Miki Takami Izumiotsu Municipal Hospital, 595-0027, Izumiotsu, Osaka, Japan aut Matsukawa Mami Faculty of Science and Engineering, Doshisha University, 610-0321, Kyotanabe, Kyoto, Japan aut Otani Takahiko Faculty of Science and Engineering, Doshisha University, 610-0321, Kyotanabe, Kyoto, Japan aut Journal of Medical Ultrasonics Springer Japan 42/3(2015-07-01), 315-322 1346-4523 42:3<315 2015 42 10396 https://doi.org/10.1007/s10396-015-0617-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10396-015-0617-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mano Isao Office for Research Initiatives and Development, Doshisha University, 610-0321, Kyotanabe, Kyoto, Japan aut NATIONALLICENCE 700 1- Horii Kaoru Oyo Electric Co., Ltd., 610-0101, Joyo, Kyoto, Japan aut NATIONALLICENCE 700 1- Hagino Hiroshi Faculty of Medicine, Tottori University, 683-0826, Yonago, Tottori, Japan aut NATIONALLICENCE 700 1- Miki Takami Izumiotsu Municipal Hospital, 595-0027, Izumiotsu, Osaka, Japan aut NATIONALLICENCE 700 1- Matsukawa Mami Faculty of Science and Engineering, Doshisha University, 610-0321, Kyotanabe, Kyoto, Japan aut NATIONALLICENCE 700 1- Otani Takahiko Faculty of Science and Engineering, Doshisha University, 610-0321, Kyotanabe, Kyoto, Japan aut NATIONALLICENCE 773 0- Journal of Medical Ultrasonics Springer Japan 42/3(2015-07-01), 315-322 1346-4523 42:3<315 2015 42 10396