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Widefield illumination photoacoustic imaging of blood vessel phantom

Authors
Han, Jae-HoCha, Jaepyeong
Issue Date
1월-2020
Publisher
WILEY
Keywords
photoacoustic imaging; pulsed laser; tomography; transducer; widefield illumination
Citation
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.62, no.1, pp.33 - 36
Indexed
SCIE
SCOPUS
Journal Title
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume
62
Number
1
Start Page
33
End Page
36
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/58576
DOI
10.1002/mop.31987
ISSN
0895-2477
Abstract
We achieved photoacoustic tomographic imaging by employing widefield illumination using a pulsed laser source that irradiates the entire area of interest for the specimen under investigation. This approach can be simpler and more efficient than the use of narrow point-source scanning. Tomographic images were computed via an inversere-construction-based algorithm from signals acquired using a single transducer with circular scanning configuration. The signals were coupled to the transducer probe with index-matching gel around the circumference of the specimen, eliminating the need for aquatic immersion. A blood-vessel-mimicking phantom was used to demonstrate our setup and the image reconstruction was also verified by simulation, proving the feasibility of a miniaturized system based on this design.
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