| 他得安,王威琪,汪源源.松质骨中超声背散射信号的分析[J].中国医学影像技术,2004,20(9):1434~1436 |
| 松质骨中超声背散射信号的分析 |
| Analysis of ultrasonic backscatter signal in cancellous bone |
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| DOI： |
| 中文关键词: 松质骨 背散射系数 |
| 英文关键词:Cancellous bone Backscatter coefficient |
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| 中文摘要: |
| 在理论和实验上,分析了松质骨中超声背散射系数与频率的关系。牛胫骨和人尸体跟骨松质骨的背散射实验及理论分析结果表明,背散射系数随入射频率的增加而非线性的增加。一般,整个背散射系数曲线可以分成三段不同斜率的曲线。在用超声评价松质骨状况时,背散射信号具有重要作用,其背散射系数(BSC)可用于评价松质骨状况。 |
| 英文摘要: |
| The relationship of ultrasonic backscatter coefficient (BSC) in cancellous bone with frequency is analyzed in theoretical and experimental. The results of experiment and theory for cancellous bone of bovine tibiae and human calcaneus in vitro showed that BSC is a non-linear function of frequency, increasing with frequency. In general, all curve of BSC can be divided into three sections with different slope. Those results suggest that the backscatter signal and BSC have a particularly important action in assessment of cancellous bone status. |
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