| Literature DB >> 23969161 |
Vincent Mathieu1, Christine Chappard, Romain Vayron, Adrien Michel, Guillaume Haïat.
Abstract
Quantitative ultrasound techniques can be used to retrieve cortical bone quality. The aim of this study was to investigate the anatomic variations in speed of sound (SOS) in the radial direction of cortical bone tissue. SOS measurements were realized in 17 human cortical bone samples with a 3.5-MHz transverse transmission device. The radial dependence of SOS was investigated in a direction perpendicular to the periosteum. For each sample, bone porosity was measured using an X-ray micro-computed tomography device. The mean SOS was 3586 ± 255 m/s. For 16 of 17 specimens, similar radial variations in SOS were observed. In the periosteal region, SOS first decreased in the direction of the endosteum and reached a minimum value approximately in the middle of the cortical bone. SOS then increased, moving to the endosteal region. A significant negative correlation was obtained between SOS and porosity (R = -0.54, p = 0.02).Entities:
Keywords: Cortical bone; Porosity; Quantitative ultrasound; Speed of sound; Tissue mineral density; Transverse transmission; Velocity
Mesh：
Year: 2013 PMID： 23969161 DOI： 10.1016/j.ultrasmedbio.2013.06.005
Source DB: PubMed Journal: Ultrasound Med Biol ISSN： 0301-5629 Impact factor: 2.998