Photoacoustic and ultrasonic coimage with a linear transducer array

Yaguang Zeng, Da Xing, Yi Wang, Bangzhen Yin, Qun Chen
2004 Optics Letters  
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
more » ... d 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.
doi:10.1364/ol.29.001760 pmid:15352361 fatcat:fprzhq7qfzef3em22cqhb2gcfu