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Adjustable Handheld Probe Design for Photoacoustic Imaging:Experimental Validation.

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    This study introduces an adaptive handheld probe for photoacoustic (PA) imaging, enhancing signal quality. The system automatically optimizes light exposure for improved signal-to-noise ratio (SNR) in biomedical applications.

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    Area of Science:

    • Biomedical Imaging
    • Optical Physics
    • Acoustic Engineering

    Background:

    • Photoacoustic (PA) imaging merges light and ultrasound for enhanced visualization.
    • Conventional PA probes lack adjustable capabilities for optimizing signal acquisition.
    • Limited adaptability in current PA probe designs hinders optimal signal-to-noise ratio (SNR).

    Purpose of the Study:

    • To develop a novel PA imaging system with a light-adjustable handheld probe.
    • To enable adaptive control for optimizing PA signal generation and SNR.
    • To demonstrate the feasibility and advantages of the proposed adaptive PA imaging system.

    Main Methods:

    • Development of a PA imaging system featuring a light-adjustable handheld probe.
    • Integration of a control unit for adaptive light illumination pattern optimization.
    • Implementation of a scanning process to identify optimal illumination parameters and positions.

    Main Results:

    • The system automatically identifies optimal illumination parameters for enhanced SNR.
    • Adaptive electronic control allows for fully automatic optimization of light exposure positions.
    • Adjustable spot size and distance offer versatile configuration capabilities.
    • Simulation and experimental results confirm the system's feasibility.

    Conclusions:

    • The proposed adaptive PA imaging system significantly improves SNR through automated optimization.
    • The handheld probe's adjustable features offer enhanced flexibility for various biomedical imaging scenarios.
    • This technology holds great potential for advancing biomedical imaging applications.