27 October 2006 A fast microwave-induced thermoacoustic tomography system for imaging of biological tissues
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Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60470K (2006) https://doi.org/10.1117/12.709956
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China
Abstract
We developed a fast microwave-induced thermoacoustic tomography system based on a 320-element phase-controlled linear transducer array. A 1.2GHz microwave generator transmits microwave with pulse duration of 0.5 us and an incident energy density of 0.45 mJ/cm2. Compared to single transducer collection, the system with multi-element linear transducer array can eliminate the mechanical rotation of the transducer, so can effectively reduce the image blurring and improve the image resolution. Using phase-controlled technique to collect thermoacoustic signals, the data need not be averaged because of the high signal-to-noise ratio, resulting in the total data acquisition time of less than 5 s. The system thus provide a rapid and reliable approach to thermoacoustic imaging. which can potentially be developed as a powerful diagnostic tool for early-stage breast caners.
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Lvming Zeng, Lvming Zeng, Da Xing, Da Xing, Huaimin Gu, Huaimin Gu, Diwu Yang, Diwu Yang, "A fast microwave-induced thermoacoustic tomography system for imaging of biological tissues", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60470K (27 October 2006); doi: 10.1117/12.709956; https://doi.org/10.1117/12.709956
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