Limited-view scanning photoacoustic imaging based on algebraic reconstruction techniques

Diwu Yang; Da Xing

doi:10.1117/12.709945

27 October 2006 Limited-view scanning photoacoustic imaging based on algebraic reconstruction techniques

Diwu Yang, Da Xing

Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60470I (2006) https://doi.org/10.1117/12.709945
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China

Abstract

The major approach to photoacoustic imaging is the filtered back projection (FBP) algorithm, which is based on direct Fourier inversion. But the reconstruction with the FBP needs sufficient views to all points in the "detection region", it requires a quite long time to get enough data, which restricts the application in the medical field. In this paper, the limited-view photoacoustic imaging based on algebraic reconstruction techniques (ART) has been studied. A Q-switched Nd: YAG laser operating at 1064 nm was used as light source. The laser had a pulse width of 6ns and a repetition frequency of 20Hz. A needle PVDF hydrophone with diameter of 1mm was used to detect photoacoustic signals. Under the same condition, the simulations and experiments demonstrated that ART works well for limited-view data in photoacoustic imaging, and ART can improve the resolution and contrast of reconstruction images compared with the FBP algorithm.

Citation Download Citation

Diwu Yang and Da Xing "Limited-view scanning photoacoustic imaging based on algebraic reconstruction techniques", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60470I (27 October 2006); https://doi.org/10.1117/12.709945

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