Photoacoustic and ultrasonic coimage with a linear transducer array |
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Authors: | Zeng Yaguang Da Xing Wang Yi Yin Bangzhen Chen Qun |
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Institution: | Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China. |
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Abstract: | A technique is developed to simultaneously acquire ultrasound and photoacoustic (PA) images based on a linear transducer array. The system uses conventional ultrasound for rapid identification of potential targets. After a target is identified, the ultrasound echo and PA signals can be simultaneously obtained with optimized excitation and a signal collection sequence. The corresponding ultrasound impedance and optical absorption images are reconstructed with a phase-controlled algorithm. The approach can effectively reduce the artifacts associated with a conventional filter backprojection algorithm used in PA imaging by linear scanning. The technique provides a new approach for practical applications. |
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