High-contrast and fast photoacoustic image of tissue

In order to attain high-contrast and fast noninvasive photoacoustic image,the multi-element phase-controlled technique was combined with the method of increasing the diaphaneity of the tissues with glycerin.The photoacoustic images of animal blood vessels of different diameters were obtained.The lateral resolution of the system was 0.5mm,and the whole photoacoustic imaging time was less than 5s.The methodology and equipment turn out that this new technique of imaging features high contrast,high speed and convenience,compared with the existing methods available.Furthermore,it had potential applications in noninvasive imaging and clinic diagnosis.