Author: Kawasaki S1, Ueda R1, Hasegawa A2, Fujita A2, Mihata T3, Matsukawa M1, Neo M3
Affiliation: <sup>1</sup>Laboratory of Ultrasonic Electronics, Doshisha University, 1-3 Tatara-Miyakodani, Kyotanabe, Kyoto 610-0321, Japan.
<sup>2</sup>Department of Orthopedic Surgery, Daiichi Towakai Hospital, 2-17, Miyano-cho, Takatsuki, Osaka 569-0081, Japan.
<sup>3</sup>Department of Orthopedic Surgery, Osaka Medical College, 2-7, Daigaku-machi, Takatsuki, Osaka 569-8686, Japan k11028349@gmail.com, bml1110.doshisha@gmail.com, youandmeco@yahoo.co.jp, akifumifujita@yahoo.co.jp, tmihata@yahoo.co.jp, mmatsuka@mail.doshisha.ac.jp, neo@poh.osaka-med.ac.jp.
Conference/Journal: J Acoust Soc Am.
Date published: 2015 Jul
Other:
Volume ID: 138 , Issue ID: 1 , Pages: EL83-7 , Special Notes: doi: 10.1121/1.4922764. , Word Count: 96
Ultrasonic wave properties of human bone marrow obtained in the femur and tibia were measured using an ultrasound pulse technique. The measured frequency range was 4-10 MHz, and the temperature range was 30 °C-40 °C. The sound velocity was 1410 m/s, and the attenuation coefficient was 4.4 dB/cm at 36 °C (10 MHz). These values decreased with temperature. Site dependence and individual differences in elderly human bone marrow were negligible. The slopes of the attenuation coefficient were estimated by a power law. The values of the exponent n were 2.0 (30 °C-38 °C) and 2.3 (40 °C).
PMID: 26233067 [PubMed - indexed for MEDLINE]