Novel Image Optimization Method for Joint Photoacoustic Tomography

doi:10.1088/0256-307X/31/5/054302

Chin. Phys. Lett.

2014, Vol. 31

Issue (05): 054302 DOI: 10.1088/0256-307X/31/5/054302

FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS)

Novel Image Optimization Method for Joint Photoacoustic Tomography

LI Wen-Chao¹, YUAN Jie^1**, SHEN Qing-Hong¹, YU Yao¹, ZHOU Yu¹, DU Si-Dan¹, LIU Xiao-Jun², XU Guan³, WANG Xue-Ding³

¹School of Electronic Science and Engineering, Nanjing University, Nanjing 210093
²School of Physics, Nanjing University, Nanjing 210093
³Department of Radiology, University of Michigan, Ann Arbor MI 48109, USA

Cite this article:

LI Wen-Chao, YUAN Jie, SHEN Qing-Hong et al 2014 Chin. Phys. Lett. 31 054302

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Abstract The distribution of speed of sound (SOS) in biomedical tissue and delay compensation (DC) have significant impact on the image quality of photoacoustic tomography (PAT). When imaging human peripheral joints, using fixed SOS and DC can only ensure that the reconstructed images are focused in a limited depth range, whereas they are defocused at other depths, which cause severe artifacts and blurring. In this work, a linear-DC based reconstruction approach is proposed to focus the whole PAT image region. It is proved by two in vivo experiments that, compared with traditional delay-and-sum back projection algorithms, the proposed method can effectively optimize the image quality of articular tissues in PAT.

Published: 24 April 2014

PACS:	43.35.Ud	(Thermoacoustics, high temperature acoustics, photoacoustic effect)
	43.80.+p	(Bioacoustics)
	43.60.+d	(Acoustic signal processing)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/31/5/054302 OR https://cpl.iphy.ac.cn/Y2014/V31/I05/054302

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	LI Wen-Chao
	YUAN Jie
	SHEN Qing-Hong
	YU Yao
	ZHOU Yu
	DU Si-Dan
	LIU Xiao-Jun
	XU Guan
	WANG Xue-Ding

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