| 超声CT法无损测温 |
| |
| 引用本文： | 杨一鸿 王鸿樟. 超声CT法无损测温[J]. 上海交通大学学报, 1993, 27(6): 39-46 |
| |
| 作者姓名： | 杨一鸿 王鸿樟 |
| |
| 作者单位： | 上海交通大学精密仪器系，上海交通大学精密仪器系 |
| |
| 基金项目： | 国家自然科学基金，国家教委的高校基金 |
| |
| 摘 要： | 本文研究了测温用的超声ＣＴ算法，分析了测量精度和时间，运用两种迭代法讨论了声波受到人体内骨骼、空气阻碍时，投影数据缺损情况下的超声ＣＴ重建算法。文中还进一步研究了超声衍射ＣＴ；在卷积－反传播法的基础上，提出一种新的投影数据缺损时超声衍射ＣＴ算法，并给出了计算机仿真的结果。
|
| 关 键 词： | 超声衍射CT 热疗 无损测量 温度 |
Ultrasonic Computed Tomography for Noninvasive Temperature Measurement |
| |
| Yang Yihong,Wang Hongzhang. Ultrasonic Computed Tomography for Noninvasive Temperature Measurement[J]. Journal of Shanghai Jiaotong University, 1993, 27(6): 39-46 |
| |
| Authors: | Yang Yihong Wang Hongzhang |
| |
| Affiliation: | Yang Yihong;Wang Hongzhang |
| |
| Abstract: | A method for measuring the internal temperature of the human body by ultrasonic computed tomography UCT is presented. The measurement of tem- perature was carried out by using a proper model, which corresponds to an ultra- sonic CT arithmatic calculation process. The precision of the measurement and the duration of UCT calculation were analyzed. Two methods of reiteration for the incomplete data due to wave propagation obstructed by bones or air have been adopted. Furthermore, the diffraction UCT with the convolution back-propaga- tion method has also been discussed. A new method for diffraction UCT in the case of obstructed data and the results from computer simulation have been given. |
| |
| Keywords: | ultrasonic diffraction CT hyperthermia noninvasive temperature measuring computer simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
