Abstract
Photoacoustic (PA) imaging is a promising imaging modality for both preclinical research and clinical practices. Laser wavelengths in the first near infrared window (NIR-I, 650-950 nm) have been widely used for photoacoustic imaging. As compared with NIR-I window, scattering of photons by biological tissues is largely reduced in the second NIR (NIR-II) window, leading to enhanced imaging fidelity. However, the lack of biocompatible NIR-II absorbing exogenous agents prevented the use of this window for in vivo imaging. In recent years, few studies have been reported on photoacoustic imaging in NIR-II window using exogenous contrast agents. In this work, we discuss the recent work on PA imaging using 1064 nm wavelength, the fundamental of Nd:YAG laser, as an excitation wavelength. The PA imaging at 1064 nm is advantageous because of the low and homogeneous signal from tissue background, enabling high contrast in PA imaging when NIR-II absorbing contrast agents are employed.
Original language | English |
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Title of host publication | Photons Plus Ultrasound |
Subtitle of host publication | Imaging and Sensing 2018 |
Editors | Lihong V. Wang, Alexander A. Oraevsky |
Publisher | SPIE |
ISBN (Electronic) | 9781510614734 |
DOIs | |
Publication status | Published - 2018 |
Externally published | Yes |
Event | Photons Plus Ultrasound: Imaging and Sensing 2018 - San Francisco, United States Duration: Jan 28 2018 → Feb 1 2018 |
Publication series
Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
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Volume | 10494 |
ISSN (Print) | 1605-7422 |
Conference
Conference | Photons Plus Ultrasound: Imaging and Sensing 2018 |
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Country/Territory | United States |
City | San Francisco |
Period | 1/28/18 → 2/1/18 |
Bibliographical note
Publisher Copyright:© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
ASJC Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Biomaterials
- Radiology Nuclear Medicine and imaging
Keywords
- contrast agent
- in vivo imaging
- photoacoustic imaging
- second near-infrared window