Estimation of Trabecular Bone Axis for Characterization of Cancellous Bone Using Scattered Ultrasonic Wave.
Estimation of Trabecular Bone Axis for Characterization of Cancellous Bone Using Scattered Ultrasonic Wave.
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使用散射超声波估计小梁骨轴以表征松质骨。
DOI：
10.1143/jjap.37.3082
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发表时间：
1998
影响因子：
1.5
通讯作者：
N. Ohtomo
中科院分区：
文献类型：
--
作者：
K. Kitamura;H. Nishikouri;S. Ueha;S. Kimura;N. Ohtomo
为了诊断骨质疏松症，提出了一种测量骨小梁厚度和骨小梁间距的新方法，该方法通过将松质骨模拟为多层光栅来分析骨小梁散射的超声信号。为了将这项技术应用到实际诊断中，对松质骨轴的方向进行估计是必要的。本文提出了一种获取方向的估计方法，通过改变骨轴与探测平面的夹角来获得典型的频谱图像。该方法已被证明是一种成功的方向估计方法。文中叙述了该方法的原理和实验验证。
A new method has been proposed to measure the thickness and the interval of trabecular bones for diagnosing osteoporosis, in which the ultrasound signals scattered by trabecular bones are analyzed by modeling cancellous bone as a multilayered grating. For applying this technique to actual diagnosis, the estimation of the direction of the trabecular bone axis is necessary. In this paper an estimation method for obtaining the direction is proposed, where typical pictures of the frequency spectrum are obtained by changing the angle between the bone axis and the detecting plane. This method has been proved to estimate the direction successfully. The principle and the experimental verification are described here.