JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Adaptive synthetic-aperture focusing technique for microvasculature imaging using photoacoustic microscopy.

Optics Express 2012 March 27
To improve the lateral resolution of the blood vessels along arbitrary direction out of focus in photoacoustic microscopy (PAM), we propose an adaptive synthetic-aperture focusing technique (ASAFT) for microvasculature imaging which can be automatically applied to each branch of blood vessels, based on our previous two-dimensional (2D) SAFT. The ASAFT is validated both in the phantom study and in vivo imaging. The results demonstrate that ASAFT can provide images of blood vessels with better lateral resolution both at different depths and along various directions compared with one-dimensional and 2D SAFT.

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