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Slow-sound photoacoustic microscopy.


ABSTRACT: We propose to enhance the axial resolution of photoacoustic microscopy (PAM) by reducing the speed of sound within the imaging region of interest. With silicone oil immersion, we have achieved a finest axial resolution of 5.8 μm for PAM, as validated by phantom experiments. The axial resolution was also enhanced in vivo when mouse ears injected with silicone oil were imaged. When tissue-compatible low-speed liquid becomes available, this approach may find broad applications in PAM as well as in other imaging modalities, such as photoacoustic computed tomography and ultrasound imaging.

SUBMITTER: Zhang C 

PROVIDER: S-EPMC3651204 | biostudies-other | 2013 Apr

REPOSITORIES: biostudies-other

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