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13 March 2024 A cylindrical lens configuration for optimizing light delivery in a curvilinear endocavity photoacoustic imaging system
Yixiao Lin, Sitai Kou, Yun Zou, Quing Zhu
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Proceedings Volume PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024; PC128420U (2024) https://doi.org/10.1117/12.3004193
Event: SPIE BiOS, 2024, San Francisco, California, United States
Abstract
Curvilinear endocavity ultrasound images capture a wide field of view with a miniature probe. In adapting photoacoustic imaging (PAI) to work with such ultrasound systems, light delivery is challenged by the tradeoff between image quality and laser safety concerns. Here, we present two novel designs based on cylindrical lenses that are optimized for transvaginal PAI B-scan imaging. Our simulation and experimental results demonstrate that, compared to conventional light delivery methods for PAI imaging, the proposed designs are safer for higher pulse energies and provide deeper imaging and a wider lateral field of view. The proposed designs could also improve the performance of endoscopic co-registered ultrasound/ photoacoustic imaging in other clinical applications.
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Yixiao Lin, Sitai Kou, Yun Zou, and Quing Zhu "A cylindrical lens configuration for optimizing light delivery in a curvilinear endocavity photoacoustic imaging system", Proc. SPIE PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024, PC128420U (13 March 2024); https://doi.org/10.1117/12.3004193
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KEYWORDS
Photoacoustic imaging
Imaging systems
Cylindrical lenses
Ultrasonography
Endoscopy
Image quality
Laser safety
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