物理学报Issue(3)：437-442,6.DOI:10.7498/aps.64.034301
S波段微波热致超声成像系统研究
S-band microwave-induced thermo-acoustic tomography system
杜劲松 1高扬 1毕欣 1齐伟智 2黄林 2荣健2
作者信息
- 1. 中国科学院沈阳自动化研究所，辽宁省雷达系统研究与应用技术重点实验室，沈阳 110079
- 2. 电子科技大学，物理电子学院，成都 610054
- 折叠
摘要
Abstract
The technology of microwave-induced thermo-acoustic tomography that transmits electromagnetic wave pulses to the object and makes it absorb energy, can cause a rapid temperature rise in it. At the same time, a pressure wave will be generated instantaneouly, corresponding to generating an ultrasonic signal which can be detected by an ultrasonic sensor. After the ultrasonic signal is sampled and an image reconstructed, the image can reflect the characteristics of the electromagnetic energy absorbed by the object. The method combines a microwave imaging of high contrast and high resolution ultrasound imaging characteristics, hence verifies theoretically the feasibility of the thermo-acoustic imaging techniques for early breast cancer detection. In this study, we use S-band microwave pulse radiation source to radiate the biological tissue, and also make use of the circling mechanical motion systems to scan the tissue. In order to verify the imaging performance of the simulation experiments, we use both tumors, body and actual biological tissue as the samples of the experiments. The imaging reconstruction and comparative analysis can verify that the experimental system detects and distinguishes the tumor phantoms and the real biological tissue effectively. Results of the performance of high-resolution images and high contrast by the methods can provide further theoretical support for early detecting of breast cancer.关键词
乳腺肿瘤早期检测/微波热声/图像重建/声压传播Key words
early stage detection of breast cancer/microwave induced thermo-acoustic tomography/image reconstruction/ultrasound propagation引用本文复制引用
杜劲松,高扬,毕欣,齐伟智,黄林,荣健..S波段微波热致超声成像系统研究[J].物理学报,2015,(3):437-442,6.
