Photoacoustic signal collecting and image reconstructing system based on virtual instruments

HE Jun-feng; TAN Yi; YAO Jun-cai

In order to collect photoacoustic signals and reconstruct images quickly,photoacoustic signal collecting and image reconstructing system based on virtual instrument is applied to collect photoacoustic signals.Then the program of MATLAB is used to process collected data by LABVIEW.The photoacoustic imaging of phantom is obtained with filtered back projection algorithm in the end.The resolution of reconstructed image is 0.15mm.The reconstructed image is corresponded well with phantom.The methodology and equipment show that this imaging system features high speed and convenience.Furthermore,it is likely to be developed into a cheaper and practical clinical diagnosis instrument.

1. Department of Physics, Shaanxi University of Technology, Hanzhong 723003

Received Date: 2007-08-24

Accepted Date: 2007-11-13

Available Online: 2008-10-25

Abstract: In order to collect photoacoustic signals and reconstruct images quickly,photoacoustic signal collecting and image reconstructing system based on virtual instrument is applied to collect photoacoustic signals.Then the program of MATLAB is used to process collected data by LABVIEW.The photoacoustic imaging of phantom is obtained with filtered back projection algorithm in the end.The resolution of reconstructed image is 0.15mm.The reconstructed image is corresponded well with phantom.The methodology and equipment show that this imaging system features high speed and convenience.Furthermore,it is likely to be developed into a cheaper and practical clinical diagnosis instrument.

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Reference (15)

[1]	ZHU H H,ZUO D L,CHENG Z H,et al.Experiment research of acoustic effect induced by pulsed CO2 laser in water[J].Laser Technology,2006,30(6):605-607(in Chinese).
[2]	TAN Y,HE J F.Photoacoustic imaging consideration of ultrasonic refraction[J].Journal of Optoelectronics稬aser,2007,18(8):1013-1016(in Chinese).
[3]	SUZUKI K,YAMASHIITA Y,OHTA K,et al.Quantitative measurement of optical parameters in normal breasts using time-resolved spectroscopy in vivoresults of 30 Japanese women[J].Journal of Iomedical Optics,1996,1(3):330-334.
[4]	ZHANG H F,MASLOV K,WANG L H,et al.Functional photoacoustic microscopy for high-resolution and noninvasive in vivo imaging[J].Nature Biotechnology,2006,24(7):848-851.
[5]	KU G,WANG L H.Deeply penetrating photoacoustic tomography in biological tissues enhanced with an optical contrast agent[J].Opt Lett,2005,30(5):507-509.
[6]	SU Y X,WANG R K,ZHANG F,et al.Two-dimensional photoacoustic imaging of blood vessel networks within biological tissues[J].Chinese Physics Letters,2006,23(2):512-515.
[7]	WANG X D,PANG Y J,KU G,et al.Noninvasive laser induced photoacoustic tomography for structural and functional in vivo imaging of the brain[J].Nature Biotechnology,2003,21(7):803-806.
[8]	SIPHANTO R I,THUMMA K K,KOLKMAN R G M,et al.Serial noninvasive photoacoustic imaging of neovascularization in tumor angiogenesis[J].Optics Express,2005,13(1):89-95.
[9]	CHEN Z X,TANG Z L,WAN W,et al.Photoacoustic tomography imaging based on a 4f acoustic lens imaging system[J].Optics Express,2007,15(8):4966-4976.
[10]	YIN B Z,XING D,WANG Y,et al.Fast photoacoustic imaging system based on 320-element linear transducer array[J].Physics in Medicine and Biology,2004,49(7):1339-1346.
[11]	ZENG Y G,XING D,WANG Y,et al.Photoacoustic and ultrasonic Co-image with a linear transducer array[J].Opt Lett,2004,29(15):1760-1762.
[12]	YANG D W,XING D,TAN Y,et al.Integrative prototype B-scan photoacoustic tomography system based on a novel hybridized scanning head[J].A P L,2006,88(17):174101-174103.
[13]	XU M H,WANG L V.Time-domain reconstruction for thermoacoustic tomography in a spherical geometry[J].IEEE Transactions on Medical Imaging,2002,21(7):814-822.
[14]	HE J F,TAN Y.Development of photoacoustic imaging technology in biomedicine[J].Laser Technology,2007,31(5):530-533(in Chinese).
[15]	ZENG L M,XING D,GU H M,et al.High antinoise photoacoustic tomography based on a modified filtered backprojection algorithm with combination wave[J].Medical Physics,2007,34(2):556-563.

Photoacoustic signal collecting and image reconstructing system based on virtual instruments

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通讯作者: 陈斌, bchen63@163.com

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