A fast microwave-induced thermoacoustic tomography system for imaging of biological tissues

Lvming Zeng; Da Xing; Huaimin Gu; Diwu Yang

doi:10.1117/12.709956

27 October 2006 A fast microwave-induced thermoacoustic tomography system for imaging of biological tissues

Lvming Zeng, Da Xing, Huaimin Gu, Diwu Yang

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.

Citation Download Citation

Lvming Zeng, Da Xing, Huaimin Gu, and 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); https://doi.org/10.1117/12.709956

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