Optical Design and Engineering

Three-dimensional photoacoustic imaging system with a 4f aspherical acoustic lens

[+] Author Affiliations
En Jen

National Yang-Ming University, Institute of Biomedical Engineering, No. 155, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan

National Taiwan University, Institute of Biomedical Electronics and Bioinformatics, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan

Hsintien Lin

National Yang-Ming University, Institute of Biomedical Engineering, No. 155, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan

Huihua Kenny Chiang

National Yang-Ming University, Institute of Biomedical Engineering, No. 155, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan

National Yang-Ming University, Biophotonics and Molecular Imaging Research Center, No. 155, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan

Opt. Eng. 55(8), 085102 (Aug 03, 2016). doi:10.1117/1.OE.55.8.085102
History: Received May 12, 2016; Accepted July 13, 2016
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Abstract.  Photoacoustic (PA) imaging is a modality for achieving high-contrast images of blood vessels or tumors. Most PA imaging systems use complex reconstruction algorithms under conventional linear array transducers. We introduced the optical simulating method to improve the acoustic lens design and obtain a PA imaging system with improved spatial revolution (a 0.5-mm point spread function and a lateral image resolution of more than 1 mm) is realized using a 4f aspherical acoustic lens. The acoustic lens approach improved the image resolution and enabled direct reconstruction of three-dimensional (3-D) PA images. The system demonstrated a lateral resolution of more than 1 mm, a field of view of 8.5 deg, and a depth of focus of 10 mm. The system displays great potential for developing a real-time 3-D PA camera system for biomedical ultrasound imaging applications.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

En Jen ; Hsintien Lin and Huihua Kenny Chiang
"Three-dimensional photoacoustic imaging system with a 4f aspherical acoustic lens", Opt. Eng. 55(8), 085102 (Aug 03, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.085102


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