Presentation
7 March 2022 High-speed functional photoacoustic microscopy using a water-immersible two-axis torsion-bending scanner
Author Affiliations +
Abstract
Optical-resolution photoacoustic microscopy (OR-PAM) can image biological tissues at micrometer level resolution. However, the imaging speed of traditional OR-PAM is often too slow for capturing dynamic information. In this work, we demonstrate a high-speed OR-PAM system using a water-immersible two-axis torsion-bending scanner, in which the fast axis employs the torsion scanning while the slow axis works at the bending mode. The system has achieved a cross-sectional frame rate of 400 Hz, and a volumetric imaging speed of 1 Hz over a field of view of 1.5 × 2.5 mm2. We have demonstrated high-speed OR-PAM of fast hemodynamic changes in vivo.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Maomao Chen, Xiaoyu Duan, Bangxin Lan, Tri Vu, Xiaoyi Zhu, Qiangzhou Rong, Wei Yang, Ulrike Hoffmann, Jun Zou, and Junjie Yao "High-speed functional photoacoustic microscopy using a water-immersible two-axis torsion-bending scanner", Proc. SPIE PC11960, Photons Plus Ultrasound: Imaging and Sensing 2022, PC119602N (7 March 2022); https://doi.org/10.1117/12.2609803
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KEYWORDS
Scanners

Photoacoustic microscopy

Imaging systems

Electromagnetism

Hemodynamics

Image resolution

In vivo imaging

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