Paper
12 March 2024 Analysis of characteristics and photoacoustic imaging performance of exogenous contrast agents
Author Affiliations +
Abstract
Photoacoustic imaging offers high spatial resolution, imaging depth, and molecular information, emerging as a promising biomedical imaging modality. In particular, when using exogenous contrast, the advantages of photoacoustic imaging can be more effectively utilized in preclinical and clinical studies. We provide a novel approach to screen and identify efficient photoacoustic performance as contrast agents of the metals. To accomplish this, we introduce a novel figure of merit that quantifies the potential performance of contrast agents. As a result of the quantification, we discover that Ti nanodiscs outperform Pt nanodiscs in terms of photoacoustic ability, which shows a similar level to Au nanodiscs. We compare these results by performing a photoacoustic phantom imaging experiment. The photoacoustic performance of the three materials is compared by comparing the signal intensity of the materials measured on the photoacoustic image for various wavelengths. The imaging results further support our findings, demonstrating the superior performance of Ti nanodiscs as contrast agents.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Jung-Sub Wi, Jiwoong Kim, Myeong Yun Kim, Seongwook Choi, Hae Jue Jung, Chulhong Kim, and Hee-Kyung Na "Analysis of characteristics and photoacoustic imaging performance of exogenous contrast agents", Proc. SPIE 12842, Photons Plus Ultrasound: Imaging and Sensing 2024, 1284212 (12 March 2024); https://doi.org/10.1117/12.3000864
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KEYWORDS
Photoacoustic imaging

Contrast agents

Gold

Photoacoustic spectroscopy

Platinum

Medical research

Signal intensity

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