Fast photoacoustic tomography by use of acoustic lens

Photoacoustic tomography has the potential to image the configuration or function of animal or human organs with simultaneous high contrast and high spatial resolution. This article provides an overview of photoacoustic tomography with an acoustic lens. And a new fast photoacoustic tomography technique is introduced. An acoustic lens is able to map the initial photoacoustic pressure distribution in an object in real time without the need of complicated computational reconstruction. Further more, this method produces no artifacts in reconstructed images. Finally, a new fast photoacoustic tomography system based on acoustic is discussed in detail in this paper.