Laugier P, Berger G, Giat P, Bonnin-Fayet P, Laval-Jeantet M
Laboratoire Imagerie Paramétrique, URA CNRS 1458 15, Paris, France.
Ultrason Imaging. 1994 Apr;16(2):65-76. doi: 10.1177/016173469401600201.
A complete assessment of the broadband ultrasonic attenuation (BUA) distribution within the os calcis was made using an ultrasonic mechanical scanning device with focused transducers. Measurements were performed on 12 os calces removed from fresh female cadavers. We present the first images of BUA of the os calcis. Reasonably high quality images were obtained compared to computed tomography. The resolution provided by the focused transducers is approximately 4 or 5 mm in the focal zone. Compared to dual energy X-ray absorptiometry (DEXA) or quantitative computed tomography, ultrasound imaging of the os calcis offers the possibility of controlling the placement, size and shape of the region of interest and to use multiple measurement sites. DEXA was used systematically to measure the bone mineral density (BMD) of the os calces. A highly significant correlation between BMD and BUA was found (r = 0.97 p < 0.001).
使用带有聚焦换能器的超声机械扫描装置，对跟骨内的宽带超声衰减（BUA）分布进行了全面评估。对从新鲜女性尸体上取下的12块跟骨进行了测量。我们展示了跟骨BUA的首张图像。与计算机断层扫描相比，获得了质量相当高的图像。聚焦换能器在焦区提供的分辨率约为4或5毫米。与双能X线吸收法（DEXA）或定量计算机断层扫描相比，跟骨的超声成像提供了控制感兴趣区域的位置、大小和形状以及使用多个测量部位的可能性。系统地使用DEXA测量跟骨的骨矿物质密度（BMD）。发现BMD与BUA之间存在高度显著的相关性（r = 0.97，p < 0.001）。
