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J Biomed Opt. 2011 Oct;16(10):106001. doi: 10.1117/1.3631798.

Integrated ultrasound and photoacoustic probe for co-registered intravascular imaging.

Author information

1
Wuhan University, Department of Physics and Key Laboratory of Acoustic and Photonic Materials and Devices, Ministry of Education, Wuhan 430072, China.

Abstract

We report on the synergy of an integrated ultrasound (US) and photoacoustic (PA) probe system for intravascular imaging. The combined dual-modality probe is based on a 39 MHz ring-shaped US transducer which detects both US echoes and laser-generated PA signals. By combining optical fiber, US transducer, and micromirror, we can obtain intravascular cross-sectional B-scan images by internal illumination of the sample. The performance of the probe is evaluated in a phantom study. Moreover, the coaxially designed probe also provides co-registered US and PA images of a normal rabbit aorta, which demonstrates the imaging ability of the dual-functional system, implying future clinical applications.

PMID:
22029348
PMCID:
PMC3206921
DOI:
10.1117/1.3631798
[Indexed for MEDLINE]
Free PMC Article

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